Servo couplings / clamping set, key / 1 disc, 2 discs / body: aluminium / SFC / MIKI PULLEY (Part Numbers - CAD Download)
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Uses lightweight, high-strength aluminum alloy for clamp hub. Extremely high torsional rigidity supporting high responsiveness.
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Metal Disc Couplings SERVOFLEX SFC Series
Applications
NC lathe, machining center, chip mounter, actuator, SCARA robot, semiconductor manufacturing equipment
| Max. rated torque | [N·m] | 250 |
| Bore ranges | [mm] | Φ 3~45 |
High Stiffness and Ultra-low Inertia
Small- and medium-capacity model, which is made of a high-strength aluminum alloy and whose outer hub diameter is linked to the shaft diameter to achieve a ultra-low inertia ideal for high-speed rotation. Three different shapes are available depending on the combination of bore diameters you use.
Simple and Reliable Connection
A single clamping method is used for connection to the shaft. The clamping hub is shock and vibration proof, enabling reliable connection and helping to substantially reduce mounting time. A special jig is used for centering to achieve an extremely high concentricity.
Wide Variety of Options
A wide variety of options such as a tapered shaft, length-specified special order, and keyway milling application are available. You can combine options to meet your desired specifications.
＊1 For surface processing of the clamping bolts , black coating is applied only for #002.
＊2 The collar material in the marked area is S45C in sizes #080 to #100, and the surface finishing is trivalent chrome treatment.
＊3 The bolt surface finishing in the marked area is anti-rust coating in sizes #080 to #100.
SERVOFLEX SFC (SA2) Single Element Type
Specifications
| Model | Shape type | Rated torque [N･m] | Misalignment | Max. rotation speed [min－1] | Torsional stiffness [N･m/rad] | Axial stiffness [N/mm] | Moment of inertia [kg･m2] | Mass [kg] | ||
| Parallel [mm] | Angular [°] | Axial [mm] | ||||||||
| SFC-002SA2 | C | 0.25 | 0.01 | 0.5 | ±0.04 | 10000 | 190 | 34 | 0.06×10－6 | 0.003 |
| SFC-005SA2 | C | 0.6 | 0.02 | 0.5 | ±0.05 | 10000 | 500 | 140 | 0.26×10－6 | 0.007 |
| SFC-010SA2 | C | 1 | 0.02 | 1 | ±0.1 | 10000 | 1400 | 140 | 0.58×10－6 | 0.011 |
| SFC-020SA2 | C | 2 | 0.02 | 1 | ±0.15 | 10000 | 3700 | 64 | 2.39×10－6 | 0.025 |
| SFC-025SA2 | C | 4 | 0.02 | 1 | ±0.19 | 10000 | 5600 | 60 | 3.67×10－6 | 0.029 |
| SFC-030SA2 | A | 5 | 0.02 | 1 | ±0.2 | 10000 | 8000 | 64 | 4.07×10－6 | 0.034 |
| B | 5 | 0.02 | 1 | ±0.2 | 10000 | 8000 | 64 | 6.09×10－6 | 0.041 | |
| C | 5 | 0.02 | 1 | ±0.2 | 10000 | 8000 | 64 | 8.20×10－6 | 0.049 | |
| SFC-035SA2 | C | 10 | 0.02 | 1 | ±0.25 | 10000 | 18000 | 112 | 18.44×10－6 | 0.082 |
| SFC-040SA2 | A | 12 | 0.02 | 1 | ±0.3 | 10000 | 20000 | 80 | 16.71×10－6 | 0.077 |
| B | 12 | 0.02 | 1 | ±0.3 | 10000 | 20000 | 80 | 22.55×10－6 | 0.085 | |
| C | 12 | 0.02 | 1 | ±0.3 | 10000 | 20000 | 80 | 29.25×10－6 | 0.100 | |
| SFC-050SA2 | A | 25 | 0.02 | 1 | ±0.4 | 10000 | 32000 | 48 | 55.71×10－6 | 0.159 |
| B | 25 | 0.02 | 1 | ±0.4 | 10000 | 32000 | 48 | 76.26×10-－6 | 0.177 | |
| C | 25 | 0.02 | 1 | ±0.4 | 10000 | 32000 | 48 | 99.03×10－6 | 0.206 | |
| SFC-055SA2 | C | 40 | 0.02 | 1 | ±0.42 | 10000 | 50000 | 43 | 188.0×10－6 | 0.314 |
| SFC-060SA2 | A | 60 | 0.02 | 1 | ±0.45 | 10000 | 70000 | 76.4 | 145.9×10－6 | 0.283 |
| B | 60 | 0.02 | 1 | ±0.45 | 10000 | 70000 | 76.4 | 205.0×10－6 | 0.326 | |
| C | 60 | 0.02 | 1 | ±0.45 | 10000 | 70000 | 76.4 | 268.6×10－6 | 0.385 | |
| SFC-080SA2 | C | 100 | 0.02 | 1 | ±0.55 | 10000 | 140000 | 128 | 710.6×10－6 | 0.708 |
| SFC-090SA2 | C | 180 | 0.02 | 1 | ±0.65 | 10000 | 100000 | 108 | 1236×10－6 | 0.946 |
| SFC-100SA2 | C | 250 | 0.02 | 1 | ±0.74 | 10000 | 120000 | 111 | 1891×10－6 | 1.202 |
* Types A / B / C are automatically specified by Miki Pulley according to the combination of bore diameters you select, and cannot be specified by the customer. * Check the Standard Bore Diameter list as rated torque may be restricted by the holding power of the shaft connection component. * Max. rotation speed does not take into account dynamic balance. * Torsional stiffness values given are measured values for the element alone. * The moment of inertia and mass are measured for the maximum bore diameter.
Dimensions
| Model | Shape type | d1 [mm] | d2 [mm] | D [mm] | DB [mm] | N [mm] | L [mm] | LF [mm] | S [mm] | A1 [mm] | A2 [mm] | C [mm] | K [mm] | M Quantity - Nominal dia. | Tightening torque [N･m] | ||
| Min. | Max. | Min. | Max. | ||||||||||||||
| SFC-002SA2 | C | 3 | 5 | 3 | 5 | 12 | 12.4 | - | 12.35 | 5.9 | 0.55 | - | 3.7 | 1.9 | 5.6 | 1-M1.6 | 0.23 ～ 0.28 |
| SFC-005SA2 | C | 3 | 6 | 3 | 6 | 16 | - | - | 16.7 | 7.85 | 1 | - | 4.8 | 2.5 | 6.5 | 1-M2 | 0.4 ～ 0.5 |
| SFC-010SA2 | C | 3 | 8 | 3 | 8 | 19 | - | - | 19.35 | 9.15 | 1.05 | - | 5.8(6) | 3.15 | 8.5 | 1-M2.5(M2) | 1.0 ～ 1.1(0.4 ～ 0.5) |
| SFC-020SA2 | C | 4 | 10 | 4 | 11 | 26 | - | - | 23.15 | 10.75 | 1.65 | - | 9.5 | 3.3 | 10.6 | 1-M2.5 | 1.0 ～ 1.1 |
| SFC-025SA2 | C | 5 | 14 | 5 | 14 | 29 | - | - | 23.4 | 10.75 | 1.9 | - | 11 | 3.3 | 14.5 | 1-M2.5 | 1.0 ～ 1.1 |
| SFC-030SA2 | A | 5 | 10 | 5 | 10 | 34 | - | 21.6 | 27.3 | 12.4 | 2.5 | 8 | - | 3.75 | 14.5 | 1-M3 | 1.5 ～ 1.9 |
| B | 5 | 10 | Over10 | 16 | 34 | - | 21.6 | 27.3 | 12.4 | 2.5 | 8 | 12.5 | 3.75 | 14.5 | 1-M3 | 1.5 ～ 1.9 | |
| C | Over10 | 14 | Over10 | 16 | 34 | - | - | 27.3 | 12.4 | 2.5 | - | 12.5 | 3.75 | 14.5 | 1-M3 | 1.5 ～ 1.9 | |
| SFC-035SA2 | C | 6 | 16 | 6 | 19 | 39 | - | - | 34 | 15.5 | 3 | - | 14 | 4.5 | 17 | 1-M4 | 3.4 ～ 4.1 |
| SFC-040SA2 | A | 8 | 15 | 8 | 15 | 44 | - | 29.6 | 34 | 15.5 | 3 | 11 | - | 4.5 | 19.5 | 1-M4 | 3.4 ～ 4.1 |
| B | 8 | 15 | Over15 | 24 | 44 | - | 29.6 | 34 | 15.5 | 3 | 11 | 17 | 4.5 | 19.5 | 1-M4 | 3.4 ～ 4.1 | |
| C | Over15 | 19 | Over15 | 24 | 44 | - | - | 34 | 15.5 | 3 | - | 17 | 4.5 | 19.5 | 1-M4 | 3.4 ～ 4.1 | |
| SFC-050SA2 | A | 8 | 19 | 8 | 19 | 56 | - | 38 | 43.4 | 20.5 | 2.4 | 14.5 | - | 6 | 26 | 1-M5 | 7.0 ～ 8.5 |
| B | 8 | 19 | Over19 | 30 | 56 | - | 38 | 43.4 | 20.5 | 2.4 | 14.5 | 22 | 6 | 26 | 1-M5 | 7.0 ～ 8.5 | |
| C | Over19 | 25 | Over19 | 30 | 56 | - | - | 43.4 | 20.5 | 2.4 | - | 22 | 6 | 26 | 1-M5 | 7.0 ～ 8.5 | |
| SFC-055SA2 | C | 10 | 30 | 10 | 30 | 63 | - | - | 50.6 | 24 | 2.6 | - | 23 | 7.75 | 31 | 1-M6 | 14 ～ 15 |
| SFC-060SA2 | A | 11 | 24 | 11 | 24 | 68 | - | 46 | 53.6 | 25.2 | 3.2 | 17.5 | - | 7.75 | 31 | 1-M6 | 14 ～ 15 |
| B | 11 | 24 | Over24 | 35 | 68 | - | 46 | 53.6 | 25.2 | 3.2 | 17.5 | 26.5 | 7.75 | 31 | 1-M6 | 14 ～ 15 | |
| C | Over24 | 30 | Over24 | 35 | 68 | - | - | 53.6 | 25.2 | 3.2 | - | 26.5 | 7.75 | 31 | 1-M6 | 14 ～ 15 | |
| SFC-080SA2 | C | 18 | 35 | 18 | 40 | 82 | - | - | 68 | 30 | 8 | - | 28 | 9 | 38 | 1-M8 | 27 ～ 30 |
| SFC-090SA2 | C | 25 | 40 | 25 | 45 | 94 | - | - | 68.3 | 30 | 8.3 | - | 34 | 9 | 42 | 1-M8 | 27 ～ 30 |
| SFC-100SA2 | C | 32 | 45 | 32 | 45 | 104 | - | - | 69.8 | 30 | 9.8 | - | 39 | 9 | 48 | 1-M8 | 27 ～ 30 |
Standard Bore Diameters
| Standard (option) bore diameter, d1/d2 [mm] and restricted rated torque [N･m] | |||||||||||||||||||||||||||||||||
| Nominal bore diameter | 3 | 4 | 5 | 6 | 6.35 | 7 | 8 | 9 | 9.525 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 22 | 24 | 25 | 28 | 30 | 32 | 35 | 38 | 40 | 42 | 45 | ||
| Shaft tolerance | h7 (h6,g6) | B | • | • | • | • | • | • | • | • | • | • | • | • | • | • | • | • | • | • | • | • | • | • | • | • | • | • | • | • | • | • | • |
| j6 (Option) | J | ○ | ○ | ○ | ○ | ||||||||||||||||||||||||||||
| k6 (Option) | K | ○ | ○ | ○ | ○ | ○ | ○ | ○ | ○ | ○ | |||||||||||||||||||||||
| SFC-002SA2 | d1 | • | • | • | |||||||||||||||||||||||||||||
| d2 | • | • | • | ||||||||||||||||||||||||||||||
| SFC-005SA2 | d1 | • | • | • | • | ||||||||||||||||||||||||||||
| d2 | • | • | • | • | |||||||||||||||||||||||||||||
| SFC-010SA2 | d1 | • | • | • | • | • | • | • | |||||||||||||||||||||||||
| d2 | • | • | • | • | • | • | • | ||||||||||||||||||||||||||
| SFC-020SA2 | d1 | • | • | • | • | • | • | • | • | • | |||||||||||||||||||||||
| d2 | • | • | • | • | • | • | • | • | • | • | |||||||||||||||||||||||
| SFC-025SA2 | d1 | 2.1 | • | • | • | • | • | • | • | • | • | • | • | ||||||||||||||||||||
| d2 | 2.1 | • | • | • | • | • | • | • | • | • | • | • | |||||||||||||||||||||
| SFC-030SA2 | d1 | 2.8 | 3.4 | • | • | • | • | • | • | • | • | • | • | ||||||||||||||||||||
| d2 | 2.8 | 3.4 | • | • | • | • | • | • | • | • | • | • | • | • | |||||||||||||||||||
| SFC-035SA2 | d1 | 5 | 5 | 6.6 | • | • | • | • | • | • | • | • | • | • | |||||||||||||||||||
| d2 | 5 | 5 | 6.6 | • | • | • | • | • | • | • | • | • | • | • | • | • | |||||||||||||||||
| SFC-040SA2 | d1 | 9 | • | • | • | • | • | • | • | • | • | • | • | • | |||||||||||||||||||
| d2 | 9 | • | • | • | • | • | • | • | • | • | • | • | • | • | • | • | |||||||||||||||||
| SFC-050SA2 | d1 | 18 | 20 | 22 | 22 | • | • | • | • | • | • | • | • | • | • | • | • | • | |||||||||||||||
| d2 | 18 | 20 | 22 | 22 | • | • | • | • | • | • | • | • | • | • | • | • | • | • | • | ||||||||||||||
| SFC-055SA2 | d1 | 31 | 34 | 36 | 38 | • | • | • | • | • | • | • | • | • | • | • | • | ||||||||||||||||
| d2 | 31 | 34 | 36 | 38 | • | • | • | • | • | • | • | • | • | • | • | • | |||||||||||||||||
| SFC-060SA2 | d1 | 50 | 51 | • | • | • | • | • | • | • | • | • | • | • | • | • | |||||||||||||||||
| d2 | 50 | 51 | • | • | • | • | • | • | • | • | • | • | • | • | • | • | • | ||||||||||||||||
| SFC-080SA2 | d1 | • | • | • | • | • | • | • | • | • | • | ||||||||||||||||||||||
| d2 | • | • | • | • | • | • | • | • | • | • | • | • | |||||||||||||||||||||
| SFC-090SA2 | d1 | • | • | • | • | • | • | • | |||||||||||||||||||||||||
| d2 | • | • | • | • | • | • | • | • | • | ||||||||||||||||||||||||
| SFC-100SA2 | d1 | 226 | • | • | • | • | • | ||||||||||||||||||||||||||
| d2 | 226 | • | • | • | • | • | |||||||||||||||||||||||||||
How to Place an Order
SERVOFLEX SFC (DA2) Double Element Type
Specifications
| Model | Shape type | Rated torque [N･m] | Misalignment | Max. rotation speed [min－1] | Torsional stiffness [N･m/rad] | Axial stiffness [N/mm] | Moment of inertia [kg･m2] | Mass [kg] | ||
| Parallel [mm] | Angular [°] | Axial [mm] | ||||||||
| SFC-002DA2 | C | 0.25 | 0.03 | 0.5(On one side) | ±0.08 | 10000 | 95 | 17 | 0.07×10－6 | 0.004 |
| SFC-005DA2 | C | 0.6 | 0.05 | 0.5(On one side) | ±0.1 | 10000 | 250 | 70 | 0.37×10－6 | 0.010 |
| SFC-010DA2 | C | 1 | 0.11 | 1(On one side) | ±0.2 | 10000 | 700 | 70 | 0.80×10－6 | 0.015 |
| SFC-020DA2 | C | 2 | 0.15 | 1(On one side) | ±0.33 | 10000 | 1850 | 32 | 3.43×10－6 | 0.035 |
| SFC-025DA2 | C | 4 | 0.16 | 1(On one side) | ±0.38 | 10000 | 2800 | 30 | 5.26×10－6 | 0.040 |
| SFC-030DA2 | A | 5 | 0.18 | 1(On one side) | ±0.4 | 10000 | 4000 | 32 | 7.43×10－6 | 0.054 |
| B | 5 | 0.18 | 1(On one side) | ±0.4 | 10000 | 4000 | 32 | 9.45×10－6 | 0.060 | |
| C | 5 | 0.18 | 1(On one side) | ±0.4 | 10000 | 4000 | 32 | 11.56×10－6 | 0.068 | |
| SFC-035DA2 | C | 10 | 0.24 | 1(On one side) | ±0.5 | 10000 | 9000 | 56 | 26.93×10－6 | 0.121 |
| SFC-040DA2 | A | 12 | 0.24 | 1(On one side) | ±0.6 | 10000 | 10000 | 40 | 29.98×10－6 | 0.124 |
| B | 12 | 0.24 | 1(On one side) | ±0.6 | 10000 | 10000 | 40 | 35.82×10－6 | 0.131 | |
| C | 12 | 0.24 | 1(On one side) | ±0.6 | 10000 | 10000 | 40 | 42.52×10－6 | 0.146 | |
| SFC-050DA2 | A | 25 | 0.28 | 1(On one side) | ±0.8 | 10000 | 16000 | 24 | 98.34×10－6 | 0.250 |
| B | 25 | 0.28 | 1(On one side) | ±0.8 | 10000 | 16000 | 24 | 118.9×10－6 | 0.268 | |
| C | 25 | 0.28 | 1(On one side) | ±0.8 | 10000 | 16000 | 24 | 141.7×10－6 | 0.298 | |
| SFC-055DA2 | C | 40 | 0.31 | 1(On one side) | ±0.84 | 10000 | 25000 | 21.5 | 261.3×10－6 | 0.459 |
| SFC-060DA2 | A | 60 | 0.34 | 1(On one side) | ±0.9 | 10000 | 35000 | 38.2 | 256.6×10－6 | 0.447 |
| B | 60 | 0.34 | 1(On one side) | ±0.9 | 10000 | 35000 | 38.2 | 315.7×10－6 | 0.489 | |
| C | 60 | 0.34 | 1(On one side) | ±0.9 | 10000 | 35000 | 38.2 | 379.3×10－6 | 0.549 | |
| SFC-080DA2 | C | 100 | 0.52 | 1(On one side) | ±1.10 | 10000 | 70000 | 64 | 1039×10－6 | 1.037 |
| SFC-090DA2 | C | 180 | 0.52 | 1(On one side) | ±1.30 | 10000 | 50000 | 54 | 1798×10－6 | 1.369 |
| SFC-100DA2 | C | 250 | 0.55 | 1(On one side) | ±1.48 | 10000 | 60000 | 55.5 | 2754×10－6 | 1.739 |
Dimensions
| Model | Shape type | d1 [mm] | d2 [mm] | D [mm] | DB [mm] | N [mm] | L [mm] | LF [mm] | LP [mm] | S [mm] | A1 [mm] | A2 [mm] | C [mm] | d3 [mm] | K [mm] | M Quantity - Nominal dia. | Tightening torque [N･m] | ||
| Min. | Max. | Min. | Max. | ||||||||||||||||
| SFC-002DA2 | C | 3 | 5 | 3 | 5 | 12 | 12.4 | - | 15.7 | 5.9 | 2.8 | 0.55 | - | 3.7 | 1.9 | 5.2 | 5.6 | 1-M1.6 | 0.23 ～ 0.28 |
| SFC-005DA2 | C | 3 | 6 | 3 | 6 | 16 | - | - | 23.2 | 7.85 | 5.5 | 1 | - | 4.8 | 2.5 | 6.5 | 6.5 | 1-M2 | 0.4 ～ 0.5 |
| SFC-010DA2 | C | 3 | 8 | 3 | 8 | 19 | - | - | 25.9 | 9.15 | 5.5 | 1.05 | - | 5.8(6) | 3.15 | 8.5 | 8.5 | 1-M2.5(M2) | 1.0 ～ 1.1(0.4 ～ 0.5) |
| SFC-020DA2 | C | 4 | 10 | 4 | 11 | 26 | - | - | 32.3 | 10.75 | 7.5 | 1.65 | - | 9.5 | 3.3 | 10.6 | 10.6 | 1-M2.5 | 1.0 ～ 1.1 |
| SFC-025DA2 | C | 5 | 14 | 5 | 14 | 29 | - | - | 32.8 | 10.75 | 7.5 | 1.9 | - | 11 | 3.3 | 15 | 14.5 | 1-M2.5 | 1.0 ～ 1.1 |
| SFC-030DA2 | A | 5 | 10 | 5 | 10 | 34 | - | 21.6 | 37.8 | 12.4 | 8 | 2.5 | 8 | - | 3.75 | 15 | 14.5 | 1-M3 | 1.5 ～ 1.9 |
| B | 5 | 10 | Over10 | 16 | 34 | - | 21.6 | 37.8 | 12.4 | 8 | 2.5 | 8 | 12.5 | 3.75 | 15 | 14.5 | 1-M3 | 1.5 ～ 1.9 | |
| C | Over10 | 14 | Over10 | 16 | 34 | - | - | 37.8 | 12.4 | 8 | 2.5 | - | 12.5 | 3.75 | 15 | 14.5 | 1-M3 | 1.5 ～ 1.9 | |
| SFC-035DA2 | C | 6 | 16 | 6 | 19 | 39 | - | - | 48 | 15.5 | 11 | 3 | - | 14 | 4.5 | 17 | 17 | 1-M4 | 3.4 ～ 4.1 |
| SFC-040DA2 | A | 8 | 15 | 8 | 15 | 44 | - | 29.6 | 48 | 15.5 | 11 | 3 | 11 | - | 4.5 | 20 | 19.5 | 1-M4 | 3.4 ～ 4.1 |
| B | 8 | 15 | Over15 | 24 | 44 | - | 29.6 | 48 | 15.5 | 11 | 3 | 11 | 17 | 4.5 | 20 | 19.5 | 1-M4 | 3.4 ～ 4.1 | |
| C | Over15 | 19 | Over15 | 24 | 44 | - | - | 48 | 15.5 | 11 | 3 | - | 17 | 4.5 | 20 | 19.5 | 1-M4 | 3.4 ～ 4.1 | |
| SFC-050DA2 | A | 8 | 19 | 8 | 19 | 56 | - | 38 | 59.8 | 20.5 | 14 | 2.4 | 14.5 | - | 6 | 26 | 26 | 1-M5 | 7.0 ～ 8.5 |
| B | 8 | 19 | Over19 | 30 | 56 | - | 38 | 59.8 | 20.5 | 14 | 2.4 | 14.5 | 22 | 6 | 26 | 26 | 1-M5 | 7.0 ～ 8.5 | |
| C | Over19 | 25 | Over19 | 30 | 56 | - | - | 59.8 | 20.5 | 14 | 2.4 | - | 22 | 6 | 26 | 26 | 1-M5 | 7.0 ～ 8.5 | |
| SFC-055DA2 | C | 10 | 30 | 10 | 30 | 63 | - | - | 68.7 | 24 | 15.5 | 2.6 | - | 23 | 7.75 | 31 | 31 | 1-M6 | 14 ～ 15 |
| SFC-060DA2 | A | 11 | 24 | 11 | 24 | 68 | - | 46 | 73.3 | 25.2 | 16.5 | 3.2 | 17.5 | - | 7.75 | 31 | 31 | 1-M6 | 14 ～ 15 |
| B | 11 | 24 | Over24 | 35 | 68 | - | 46 | 73.3 | 25.2 | 16.5 | 3.2 | 17.5 | 26.5 | 7.75 | 31 | 31 | 1-M6 | 14 ～ 15 | |
| C | Over24 | 30 | Over24 | 35 | 68 | - | - | 73.3 | 25.2 | 16.5 | 3.2 | - | 26.5 | 7.75 | 31 | 31 | 1-M6 | 14 ～ 15 | |
| SFC-080DA2 | C | 18 | 35 | 18 | 40 | 82 | - | - | 98 | 30 | 22 | 8 | - | 28 | 9 | 40 | 38 | 1-M8 | 27 ～ 30 |
| SFC-090DA2 | C | 25 | 40 | 25 | 45 | 94 | - | - | 98.6 | 30 | 22 | 8.3 | - | 34 | 9 | 47 | 42 | 1-M8 | 27 ～ 30 |
| SFC-100DA2 | C | 32 | 45 | 32 | 45 | 104 | - | - | 101.6 | 30 | 22 | 9.8 | - | 39 | 9 | 50 | 48 | 1-M8 | 27 ～ 30 |
Standard Bore Diameters
| Standard (option) bore diameter, d1/d2 [mm] and restricted rated torque [N･m] | |||||||||||||||||||||||||||||||||
| Nominal bore diameter | 3 | 4 | 5 | 6 | 6.35 | 7 | 8 | 9 | 9.525 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 22 | 24 | 25 | 28 | 30 | 32 | 35 | 38 | 40 | 42 | 45 | ||
| Shaft tolerance | h7 (h6,g6) | B | • | • | • | • | • | • | • | • | • | • | • | • | • | • | • | • | • | • | • | • | • | • | • | • | • | • | • | • | • | • | • |
| j6 (Option) | J | ○ | ○ | ○ | ○ | ||||||||||||||||||||||||||||
| k6 (Option) | K | ○ | ○ | ○ | ○ | ○ | ○ | ○ | ○ | ○ | |||||||||||||||||||||||
| SFC-002DA2 | d1 | • | • | • | |||||||||||||||||||||||||||||
| d2 | • | • | • | ||||||||||||||||||||||||||||||
| SFC-005DA2 | d1 | • | • | • | • | ||||||||||||||||||||||||||||
| d2 | • | • | • | • | |||||||||||||||||||||||||||||
| SFC-010DA2 | d1 | • | • | • | • | • | • | • | |||||||||||||||||||||||||
| d2 | • | • | • | • | • | • | • | ||||||||||||||||||||||||||
| SFC-020DA2 | d1 | • | • | • | • | • | • | • | • | • | |||||||||||||||||||||||
| d2 | • | • | • | • | • | • | • | • | • | • | |||||||||||||||||||||||
| SFC-025DA2 | d1 | 2.1 | • | • | • | • | • | • | • | • | • | • | • | ||||||||||||||||||||
| d2 | 2.1 | • | • | • | • | • | • | • | • | • | • | • | |||||||||||||||||||||
| SFC-030DA2 | d1 | 2.8 | 3.4 | • | • | • | • | • | • | • | • | • | • | ||||||||||||||||||||
| d2 | 2.8 | 3.4 | • | • | • | • | • | • | • | • | • | • | • | • | |||||||||||||||||||
| SFC-035DA2 | d1 | 5 | 5 | 6.6 | • | • | • | • | • | • | • | • | • | • | |||||||||||||||||||
| d2 | 5 | 5 | 6.6 | • | • | • | • | • | • | • | • | • | • | • | • | • | |||||||||||||||||
| SFC-040DA2 | d1 | 9 | • | • | • | • | • | • | • | • | • | • | • | • | |||||||||||||||||||
| d2 | 9 | • | • | • | • | • | • | • | • | • | • | • | • | • | • | • | |||||||||||||||||
| SFC-050DA2 | d1 | 18 | 20 | 22 | 22 | • | • | • | • | • | • | • | • | • | • | • | • | • | |||||||||||||||
| d2 | 18 | 20 | 22 | 22 | • | • | • | • | • | • | • | • | • | • | • | • | • | • | • | ||||||||||||||
| SFC-055DA2 | d1 | 31 | 34 | 36 | 38 | • | • | • | • | • | • | • | • | • | • | • | • | ||||||||||||||||
| d2 | 31 | 34 | 36 | 38 | • | • | • | • | • | • | • | • | • | • | • | • | |||||||||||||||||
| SFC-060DA2 | d1 | 50 | 51 | • | • | • | • | • | • | • | • | • | • | • | • | • | |||||||||||||||||
| d2 | 50 | 51 | • | • | • | • | • | • | • | • | • | • | • | • | • | • | • | ||||||||||||||||
| SFC-080DA2 | d1 | • | • | • | • | • | • | • | • | • | • | ||||||||||||||||||||||
| d2 | • | • | • | • | • | • | • | • | • | • | • | • | |||||||||||||||||||||
| SFC-090DA2 | d1 | • | • | • | • | • | • | • | |||||||||||||||||||||||||
| d2 | • | • | • | • | • | • | • | • | • | ||||||||||||||||||||||||
| SFC-100DA2 | d1 | 226 | • | • | • | • | • | ||||||||||||||||||||||||||
| d2 | 226 | • | • | • | • | • | |||||||||||||||||||||||||||
* The shaft tolerance for standard bore diameter is h7 (h6 or g6): designation B. However, for a bore diameter of ø35, the shaft tolerance is +0.010 -0.025. * Shaft tolerances j6/k6: designations J/K are optional, and are only supported for bore diameters marked with ○ . * Bore diameters marked with ● or numbers are supported as the standard bore diameters. Consult Miki Pulley regarding special arrangements which may be possible for other bore diameters. * Bore diameters whose fields contain numbers are restricted in their rated torque by the holding power of the shaft connection component because the bore diameter is small. The numbers indicate the rated torque [N•m].
How to Place an Order
SERVOFLEX SFC Option / Tapered Shaft Supported
Allows coupling via a clamp hub when a taper adapter is mounted on the tapered shaft of a servo motor.
Specifications
Tapered Shaft Supported for Single Element Type
| Model | Shape type | Rated torque [N・m] | Misalignment | Max. rotation speed [min-1] | Torsional stiffness [N･m/rad] | Axial stiffness [N/mm] | Moment of inertia [kg･m2] | Mass [kg] | ||
| Parallel [mm] | Angular [°] | Axial [mm] | ||||||||
| SFC-040SA2-□B-11BC | B | 12 | 0.02 | 1 | ±0.3 | 10000 | 20000 | 80 | 26.58×10-6 | 0.131 |
| C | 12 | 0.02 | 1 | ±0.3 | 10000 | 20000 | 80 | 33.28×10-6 | 0.146 | |
| SFC-050SA2-□B-11BC | B | 25 | 0.02 | 1 | ±0.4 | 10000 | 32000 | 48 | 82.91×10-6 | 0.240 |
| C | 25 | 0.02 | 1 | ±0.4 | 10000 | 32000 | 48 | 103.5×10-6 | 0.258 | |
| SFC-050SA2-□B-14BC | B | 25 | 0.02 | 1 | ±0.4 | 10000 | 32000 | 48 | 88.72×10-6 | 0.271 |
| C | 25 | 0.02 | 1 | ±0.4 | 10000 | 32000 | 48 | 111.5×10-6 | 0.301 | |
| SFC-050SA2-□B-16BC | B | 25 | 0.02 | 1 | ±0.4 | 10000 | 32000 | 48 | 95.44×10-6 | 0.309 |
| C | 25 | 0.02 | 1 | ±0.4 | 10000 | 32000 | 48 | 118.2×10-6 | 0.338 | |
| SFC-055SA2-□B-14BC | C | 40 | 0.02 | 1 | ±0.42 | 10000 | 50000 | 43 | 201.1×10-6 | 0.409 |
| SFC-055SA2-□B-16BC | C | 40 | 0.02 | 1 | ±0.42 | 10000 | 50000 | 43 | 207.8×10-6 | 0.446 |
| SFC-060SA2-□B-16BC | B | 60 | 0.02 | 1 | ±0.45 | 10000 | 70000 | 76.4 | 228.7×10-6 | 0.475 |
| C | 60 | 0.02 | 1 | ±0.45 | 10000 | 70000 | 76.4 | 287.8×10-6 | 0.517 | |
Tapered Shaft Supported for Double Element Type
| Model | Shape type | Rated torque [N・m] | Misalignment | Max. rotation speed [min-1] | Torsional stiffness [N･m/rad] | Axial stiffness [N/mm] | Moment of inertia [kg･m2] | Mass [kg] | ||
| Parallel [mm] | Angular [°] | Axial [mm] | ||||||||
| SFC-040DA2-□B-11BC | B | 12 | 0.24 | 1(On one side) | ±0.6 | 10000 | 10000 | 40 | 39.42×10-6 | 0.180 |
| C | 12 | 0.24 | 1(On one side) | ±0.6 | 10000 | 10000 | 40 | 46.12×10-6 | 0.195 | |
| SFC-050DA2-□B-11BC | B | 25 | 0.28 | 1(On one side) | ±0.8 | 10000 | 16000 | 24 | 125.5×10-6 | 0.331 |
| C | 25 | 0.28 | 1(On one side) | ±0.8 | 10000 | 16000 | 24 | 146.1×10-6 | 0.349 | |
| SFC-050DA2-□B-14BC | B | 25 | 0.28 | 1(On one side) | ±0.8 | 10000 | 16000 | 24 | 131.1×10-6 | 0.362 |
| C | 25 | 0.28 | 1(On one side) | ±0.8 | 10000 | 16000 | 24 | 154.1×10-6 | 0.392 | |
| SFC-050DA2-□B-16BC | B | 25 | 0.28 | 1(On one side) | ±0.8 | 10000 | 16000 | 24 | 138.1×10-6 | 0.400 |
| C | 25 | 0.28 | 1(On one side) | ±0.8 | 10000 | 16000 | 24 | 160.8×10-6 | 0.430 | |
| SFC-055DA2-□B-14BC | C | 40 | 0.31 | 1(On one side) | ±0.84 | 10000 | 25000 | 21.5 | 274.0×10-6 | 0.530 |
| SFC-055DA2-□B-16BC | C | 40 | 0.31 | 1(On one side) | ±0.84 | 10000 | 25000 | 21.5 | 280.5×10-6 | 0.567 |
| SFC-060DA2-□B-16BC | B | 60 | 0.34 | 1(On one side) | ±0.9 | 10000 | 35000 | 38.2 | 339.4×10-6 | 0.638 |
| C | 60 | 0.34 | 1(On one side) | ±0.9 | 10000 | 35000 | 38.2 | 398.5×10-6 | 0.681 | |
Dimensions
Tapered Shaft Supported for Single Element Type
| Model | d2 [mm] | W [mm] | T [mm] | WA [mm] | LA [mm] | dA [mm] | DA [mm] | LL [mm] | D [mm] | L [mm] | LF [mm] | C [mm] | A1 [mm] | A2 [mm] | M Quantity - Nominal dia. |
| SFC-040SA2-□B-11BC | 11 | 4 | 12.2 | 18 | 16 | 17 | 22 | 44 | 44 | 34 | 15.5 | 4.5 | 11 | 17 | 1-M4 |
| SFC-050SA2-□B-11BC | 11 | 4 | 12.2 | 18 | 16 | 17 | 22 | 48.4 | 56 | 43.4 | 20.5 | 6 | 14.5 | 22 | 1-M5 |
| SFC-050SA2-□B-14BC | 14 | 4 | 15.1 | 24 | 19 | 22 | 28 | 53.4 | 56 | 43.4 | 20.5 | 6 | 14.5 | 22 | 1-M5 |
| SFC-050SA2-□B-16BC | 16 | 5 | 17.3 | 24 | 29 | 26 | 30 | 63.4 | 56 | 43.4 | 20.5 | 6 | 14.5 | 22 | 1-M5 |
| SFC-055SA2-□B-14BC | 14 | 4 | 15.1 | 24 | 19 | 22 | 28 | 56.6 | 63 | 50.6 | 24 | 7.75 | - | 23 | 1-M6 |
| SFC-055SA2-□B-16BC | 16 | 5 | 17.3 | 24 | 29 | 26 | 30 | 66.6 | 63 | 50.6 | 24 | 7.75 | - | 23 | 1-M6 |
| SFC-060SA2-□B-16BC | 16 | 5 | 17.3 | 24 | 29 | 26 | 30 | 69.6 | 68 | 53.6 | 25.2 | 7.75 | 17.5 | 26.5 | 1-M6 |
Tapered Shaft Supported for Double Element Type
| Model | d2 [mm] | W [mm] | T [mm] | WA [mm] | LA [mm] | dA [mm] | DA [mm] | LL [mm] | D [mm] | L [mm] | LF [mm] | C [mm] | A1 [mm] | A2 [mm] | M Quantity - Nominal dia. |
| SFC-040DA2-□B-11BC | 11 | 4 | 12.2 | 18 | 16 | 17 | 22 | 58 | 44 | 48 | 15.5 | 4.5 | 11 | 17 | 1-M4 |
| SFC-050DA2-□B-11BC | 11 | 4 | 12.2 | 18 | 16 | 17 | 22 | 64.8 | 56 | 59.8 | 20.5 | 6 | 14.5 | 22 | 1-M5 |
| SFC-050DA2-□B-14BC | 14 | 4 | 15.1 | 24 | 19 | 22 | 28 | 69.8 | 56 | 59.8 | 20.5 | 6 | 14.5 | 22 | 1-M5 |
| SFC-050DA2-□B-16BC | 16 | 5 | 17.3 | 24 | 29 | 26 | 30 | 79.8 | 56 | 59.8 | 20.5 | 6 | 14.5 | 22 | 1-M5 |
| SFC-055DA2-□B-14BC | 14 | 4 | 15.1 | 24 | 19 | 22 | 28 | 74.4 | 63 | 68.7 | 24 | 7.75 | - | 23 | 1-M6 |
| SFC-055DA2-□B-16BC | 16 | 5 | 17.3 | 24 | 29 | 26 | 30 | 84.7 | 63 | 68.7 | 24 | 7.75 | - | 23 | 1-M6 |
| SFC-060DA2-□B-16BC | 16 | 5 | 17.3 | 24 | 29 | 26 | 30 | 89.3 | 68 | 73.3 | 25.2 | 7.75 | 17.5 | 26.5 | 1-M6 |
Standard Bore Diameters
Tapered Shaft Supported for Single Element Type
| Standard (option) bore diameter, d1 [mm] and restricted rated torque［N・m］ | ||||||||||||||||||||||
| Nominal bore diameter | 8 | 9 | 9.525 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 22 | 24 | 25 | 28 | 30 | 32 | 35 | |
| Shaft tolerance h7(h6,g6) | B | • | • | • | • | • | • | • | • | • | • | • | • | • | • | • | • | • | • | • | • | • |
| Shaft tolerance j6(option) | J | ○ | ○ | ○ | ○ | |||||||||||||||||
| Shaft tolerance k6(option) | K | ○ | ○ | ○ | ○ | ○ | ○ | ○ | ○ | |||||||||||||
| SFC-040SA2-□B-11BC | 9 | • | • | • | • | • | • | • | • | • | • | • | • | |||||||||
| SFC-050SA2-□B-11BC | 18 | 20 | 22 | 22 | • | • | • | • | • | • | • | • | • | • | • | • | • | • | • | |||
| SFC-050SA2-□B-14BC | 18 | 20 | 22 | 22 | • | • | • | • | • | • | • | • | • | • | • | • | • | |||||
| SFC-050SA2-□B-16BC | 18 | 20 | 22 | 22 | • | • | • | • | • | • | • | • | • | • | • | • | • | |||||
| SFC-055SA2-□B-14BC | 31 | 34 | 36 | 38 | • | • | • | • | • | • | • | • | • | • | • | • | ||||||
| SFC-055SA2-□B-16BC | 31 | 34 | 36 | 38 | • | • | • | • | • | • | • | • | • | • | • | • | ||||||
| SFC-060SA2-□B-16BC | 50 | 51 | • | • | • | • | • | • | • | • | • | • | • | • | • | • | • | |||||
Tapered Shaft Supported for Double Element Type
| Standard (option) bore diameter, d1 [mm] and restricted rated torque［N・m］ | ||||||||||||||||||||||
| Nominal bore diameter | 8 | 9 | 9.525 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 22 | 24 | 25 | 28 | 30 | 32 | 35 | |
| Shaft tolerance h7(h6,g6) | B | • | • | • | • | • | • | • | • | • | • | • | • | • | • | • | • | • | • | • | • | • |
| Shaft tolerance j6(option) | J | ○ | ○ | ○ | ○ | |||||||||||||||||
| Shaft tolerance k6(option) | K | ○ | ○ | ○ | ○ | ○ | ○ | ○ | ○ | |||||||||||||
| SFC-040DA2-□B-11BC | 9 | • | • | • | • | • | • | • | • | • | • | • | • | |||||||||
| SFC-050DA2-□B-11BC | 18 | 20 | 22 | 22 | • | • | • | • | • | • | • | • | • | • | • | • | • | • | • | |||
| SFC-050DA2-□B-14BC | 18 | 20 | 22 | 22 | • | • | • | • | • | • | • | • | • | • | • | • | • | |||||
| SFC-050DA2-□B-16BC | 18 | 20 | 22 | 22 | • | • | • | • | • | • | • | • | • | • | • | • | • | |||||
| SFC-055DA2-□B-14BC | 31 | 34 | 36 | 38 | • | • | • | • | • | • | • | • | • | • | • | • | ||||||
| SFC-055DA2-□B-16BC | 31 | 34 | 36 | 38 | • | • | • | • | • | • | • | • | • | • | • | • | ||||||
| SFC-060DA2-□B-16BC | 50 | 51 | • | • | • | • | • | • | • | • | • | • | • | • | • | • | • | |||||
How to Place an Order
SERVOFLEX SFC Option / For Length-Specified Special Order Parts
SFC (DA2) type spacer length can be changed to attain the necessary distance between shafts. Specify the length in 1 mm units.
Specifications
| Model | Shape type | Rated torque [N･m] | Misalignment | Max. rotation speed [min－1] | Moment of inertia [kg･m2] | Mass [kg] | |||||
| Parallel [mm] | Angular [°] | Axial [mm] | |||||||||
| Min. L | Max. L | Min. L | Max. L | Min. L | Max. L | ||||||
| SFC-005DA2 | C | 0.6 | 0.03 | 0.20 | 0.5(On one side) | ±0.1 | 10000 | 0.33×10－6 | 0.62×10－6 | 0.009 | 0.017 |
| SFC-010DA2 | C | 1 | 0.08 | 0.44 | 1(On one side) | ±0.2 | 10000 | 0.72×10－6 | 1.38×10－6 | 0.014 | 0.026 |
| SFC-020DA2 | C | 2 | 0.10 | 0.46 | 1(On one side) | ±0.33 | 10000 | 3.02×10－6 | 5.30×10－6 | 0.031 | 0.054 |
| SFC-025DA2 | C | 4 | 0.09 | 0.46 | 1(On one side) | ±0.38 | 10000 | 4.55×10－6 | 7.95×10－6 | 0.036 | 0.061 |
| SFC-030DA2 | A | 5 | 0.11 | 0.48 | 1(On one side) | ±0.4 | 10000 | 6.09×10－6 | 12.80×10－6 | 0.046 | 0.085 |
| B | 5 | 0.11 | 0.48 | 1(On one side) | ±0.4 | 10000 | 8.11×10－6 | 14.82×10－6 | 0.053 | 0.091 | |
| C | 5 | 0.11 | 0.48 | 1(On one side) | ±0.4 | 10000 | 10.22×10－6 | 16.93×10－6 | 0.061 | 0.099 | |
| SFC-035DA2 | C | 10 | 0.15 | 0.54 | 1(On one side) | ±0.5 | 10000 | 23.85×10－6 | 35.97×10－6 | 0.108 | 0.161 |
| SFC-040DA2 | A | 12 | 0.15 | 0.54 | 1(On one side) | ±0.6 | 10000 | 25.06×10－6 | 44.76×10－6 | 0.107 | 0.174 |
| B | 12 | 0.15 | 0.54 | 1(On one side) | ±0.6 | 10000 | 30.89×10－6 | 50.62×10－6 | 0.116 | 0.182 | |
| C | 12 | 0.15 | 0.54 | 1(On one side) | ±0.6 | 10000 | 37.58×10－6 | 57.31×10－6 | 0.130 | 0.197 | |
| SFC-050DA2 | A | 25 | 0.16 | 0.63 | 1(On one side) | ±0.8 | 10000 | 77.42×10－6 | 144.3×10－6 | 0.205 | 0.347 |
| B | 25 | 0.16 | 0.63 | 1(On one side) | ±0.8 | 10000 | 97.97×10－6 | 164.8×10－6 | 0.225 | 0.365 | |
| C | 25 | 0.16 | 0.63 | 1(On one side) | ±0.8 | 10000 | 120.8×10－6 | 187.6×10－6 | 0.252 | 0.394 | |
| SFC-055DA2 | C | 40 | 0.16 | 0.60 | 1(On one side) | ±0.84 | 10000 | 226.8×10－6 | 325.0×10－6 | 0.378 | 0.538 |
| SFC-060DA2 | A | 60 | 0.19 | 0.63 | 1(On one side) | ±0.9 | 10000 | 210.8×10－6 | 340.1×10－6 | 0.382 | 0.567 |
| B | 60 | 0.19 | 0.63 | 1(On one side) | ±0.9 | 10000 | 269.9×10－6 | 399.2×10－6 | 0.424 | 0.609 | |
| C | 60 | 0.19 | 0.63 | 1(On one side) | ±0.9 | 10000 | 333.5×10－6 | 462.8×10－6 | 0.484 | 0.669 | |
Dimensions
| Model | Shape type | d1 [mm] | d2 [mm] | D [mm] | N [mm] | L [mm] | LF [mm] | S [mm] | A1 [mm] | A2 [mm] | C [mm] | d3 [mm] | K [mm] | M Quantity - Nominal dia. | Tightening torque [N･m] | ||||
| Min. | Max. | Min. | Max. | Std. | Min. | Max. | |||||||||||||
| SFC-005DA2 | C | 3 | 6 | 3 | 6 | 16 | - | 23.2 | 21 | 40 | 7.85 | 1 | - | 4.8 | 2.5 | 6.5 | 6.5 | 1-M2 | 0.4 ～ 0.5 |
| SFC-010DA2 | C | 3 | 8 | 3 | 8 | 19 | - | 25.9 | 24 | 45 | 9.15 | 1.05 | - | 5.8(6) | 3.15 | 8.5 | 8.5 | 1-M2.5(M2) | 1.0 ～ 1.1(0.4 ～ 0.5) |
| SFC-020DA2 | C | 4 | 10 | 4 | 11 | 26 | - | 32.3 | 29 | 50 | 10.75 | 1.65 | - | 9.5 | 3.3 | 10.6 | 10.6 | 1-M2.5 | 1.0 ～ 1.1 |
| SFC-025DA2 | C | 5 | 14 | 5 | 14 | 29 | - | 32.8 | 29 | 50 | 10.75 | 1.9 | - | 11 | 3.3 | 15 | 14.5 | 1-M2.5 | 1.0 ～ 1.1 |
| SFC-030DA2 | A | 5 | 10 | 5 | 10 | 34 | 21.6 | 37.8 | 34 | 55 | 12.4 | 2.5 | 8 | - | 3.75 | 15 | 14.5 | 1-M3 | 1.5 ～ 1.9 |
| B | 5 | 10 | Over10 | 16 | 34 | 21.6 | 37.8 | 34 | 55 | 12.4 | 2.5 | 8 | 12.5 | 3.75 | 15 | 14.5 | 1-M3 | 1.5 ～ 1.9 | |
| C | Over10 | 14 | Over10 | 16 | 34 | - | 37.8 | 34 | 55 | 12.4 | 2.5 | - | 12.5 | 3.75 | 15 | 14.5 | 1-M3 | 1.5 ～ 1.9 | |
| SFC-035DA2 | C | 6 | 16 | 6 | 19 | 39 | - | 48 | 43 | 65 | 15.5 | 3 | - | 14 | 4.5 | 17 | 17 | 1-M4 | 3.4 ～ 4.1 |
| SFC-040DA2 | A | 8 | 15 | 8 | 15 | 44 | 29.6 | 48 | 43 | 65 | 15.5 | 3 | 11 | - | 4.5 | 20 | 19.5 | 1-M4 | 3.4 ～ 4.1 |
| B | 8 | 15 | Over15 | 24 | 44 | 29.6 | 48 | 43 | 65 | 15.5 | 3 | 11 | 17 | 4.5 | 20 | 19.5 | 1-M4 | 3.4 ～ 4.1 | |
| C | Over15 | 19 | Over15 | 24 | 44 | - | 48 | 43 | 65 | 15.5 | 3 | - | 17 | 4.5 | 20 | 19.5 | 1-M4 | 3.4 ～ 4.1 | |
| SFC-050DA2 | A | 8 | 19 | 8 | 19 | 56 | 38 | 59.8 | 53 | 80 | 20.5 | 2.4 | 14.5 | - | 6 | 26 | 26 | 1-M5 | 7.0 ～ 8.5 |
| B | 8 | 19 | Over19 | 30 | 56 | 38 | 59.8 | 53 | 80 | 20.5 | 2.4 | 14.5 | 22 | 6 | 26 | 26 | 1-M5 | 7.0 ～ 8.5 | |
| C | Over19 | 25 | Over19 | 30 | 56 | - | 59.8 | 53 | 80 | 20.5 | 2.4 | - | 22 | 6 | 26 | 26 | 1-M5 | 7.0 ～ 8.5 | |
| SFC-055DA2 | C | 10 | 30 | 10 | 30 | 63 | - | 68.7 | 60 | 85 | 24 | 2.6 | - | 23 | 7.75 | 31 | 31 | 1-M6 | 14 ～ 15 |
| SFC-060DA2 | A | 11 | 24 | 11 | 24 | 68 | 46 | 73.3 | 65 | 90 | 25.2 | 3.2 | 17.5 | - | 7.75 | 31 | 31 | 1-M6 | 14 ～ 15 |
| B | 11 | 24 | Over24 | 35 | 68 | 46 | 73.3 | 65 | 90 | 25.2 | 3.2 | 17.5 | 26.5 | 7.75 | 31 | 31 | 1-M6 | 14 ～ 15 | |
| C | Over24 | 30 | Over24 | 35 | 68 | - | 73.3 | 65 | 90 | 25.2 | 3.2 | - | 26.5 | 7.75 | 31 | 31 | 1-M6 | 14 ～ 15 | |
* Types A / B / C are automatically specified by Miki Pulley according to the combination of bore diameters you select, and cannot be specified by the customer. * The nominal diameter for the clamping bolt M is equal to the quantity minus the nominal diameter of the screw threads, where the quantity is for a hub on one side. * The figures in parentheses ( ) for the SFC-010 are the values when d1 or d2 is ø8 mm. * Compatible lengths L range from the minimum L dimension to the maximum L dimension shown in the above table. Specify in 1 mm units. * When the L dimension is shorter than the standard, the left/right clamping bolt phases will be off by 45°. * Check "Standard Bore Diameters" for SFC (DA2) for the standard bore diameters.
How to Place an Order
SERVOFLEX SFC Option / For Keyway Milling Applications
If you are using a keyed shaft, we can mill a keyway in the clamping hub to your specifications.
Keyway Milling Standard
| H9 keyway width standards | JS9 keyway width standards | ||||||||||||||||||||||||||||||||||
| Nominal bore dia. | Bore dia. d1･d2 [mm] | Keyway width W1･W2 [mm] | Keyway height T1･T2 [mm] | Nominal bore dia. | Bore dia. d1･d2 [mm] | Keyway width W1･W2 [mm] | Keyway height T1･T2 [mm] | Nominal bore dia. | Bore dia. d1･d2 [mm] | Keyway width W1･W2 [mm] | Keyway height T1･T2 [mm] | Nominal bore dia. | Bore dia. d1･d2 [mm] | Keyway width W1･W2 [mm] | Keyway height T1･T2 [mm] | ||||||||||||||||||||
| bore dia. | Shaft tolerance | bore dia. | Shaft tolerance | bore dia. | Shaft tolerance | bore dia. | Shaft tolerance | ||||||||||||||||||||||||||||
| h7 | j6 | k6 | h7 | j6 | k6 | h7 | j6 | k6 | h7 | j6 | k6 | ||||||||||||||||||||||||
| 8 | BH | - | KH | 8 | 3 | +0.025 | 9.4 | +0.3 | 20 | BH | - | - | 20 | 6 | +0.030 | 22.8 | +0.3 | 8 | BJ | - | KJ | 8 | 3 | ±0.0125 | 9.4 | +0.3 | 20 | BJ | - | - | 20 | 6 | ±0.0150 | 22.8 | +0.3 |
| 0 | 0 | 0 | 0 | 0 | 0 | ||||||||||||||||||||||||||||||
| 9 | BH | - | KH | 9 | 3 | +0.025 | 10.4 | +0.3 | 22 | BH | JH | KH | 22 | 6 | +0.030 | 24.8 | +0.3 | 9 | BJ | - | KJ | 9 | 3 | ±0.0125 | 10.4 | +0.3 | 22 | BJ | JJ | KJ | 22 | 6 | ±0.0180 | 24.8 | +0.3 |
| 0 | 0 | 0 | 0 | 0 | 0 | ||||||||||||||||||||||||||||||
| 10 | BH | - | - | 10 | 3 | +0.025 | 11.4 | +0.3 | 24 | BH | JH | KH | 24 | 8 | +0.036 | 27.3 | +0.3 | 10 | BJ | - | - | 10 | 3 | ±0.0125 | 11.4 | +0.3 | 24 | BJ | JJ | KJ | 24 | 8 | ±0.0180 | 27.3 | +0.3 |
| 0 | 0 | 0 | 0 | 0 | 0 | ||||||||||||||||||||||||||||||
| 11 | BH | - | - | 11 | 4 | +0.030 | 12.8 | +0.3 | 25 | BH | - | - | 25 | 8 | +0.036 | 28.3 | +0.3 | 11 | BJ | - | - | 11 | 4 | ±0.0150 | 12.8 | +0.3 | 25 | BJ | - | - | 25 | 8 | ±0.0180 | 28.3 | +0.3 |
| 0 | 0 | 0 | 0 | 0 | 0 | ||||||||||||||||||||||||||||||
| 12 | BH | - | - | 12 | 4 | +0.030 | 13.8 | +0.3 | 28 | BH | JH | - | 28 | 8 | +0.036 | 31.3 | +0.3 | 12 | BJ | - | - | 12 | 4 | ±0.0150 | 13.8 | +0.3 | 28 | BJ | JJ | - | 28 | 8 | ±0.0180 | 31.3 | +0.3 |
| 0 | 0 | 0 | 0 | 0 | 0 | ||||||||||||||||||||||||||||||
| 13 | BH | - | - | 13 | 5 | +0.030 | 15.3 | +0.3 | 30 | BH | - | - | 30 | 8 | +0.036 | 33.3 | +0.3 | 13 | BJ | - | - | 13 | 5 | ±0.0150 | 15.3 | +0.3 | 30 | BJ | - | - | 30 | 8 | ±0.0180 | 33.3 | +0.3 |
| 0 | 0 | 0 | 0 | 0 | 0 | ||||||||||||||||||||||||||||||
| 14 | BH | - | KH | 14 | 5 | +0.030 | 16.3 | +0.3 | 32 | BH | - | KH | 32 | 10 | +0.036 | 35.3 | +0.3 | 14 | BJ | - | KJ | 14 | 5 | ±0.0150 | 16.3 | +0.3 | 32 | BJ | - | KJ | 32 | 10 | ±0.0180 | 35.3 | +0.3 |
| 0 | 0 | 0 | 0 | 0 | 0 | ||||||||||||||||||||||||||||||
| 15 | BH | - | - | 15 | 5 | +0.030 | 17.3 | +0.3 | 35 | BH | - | - | 35 | 10 | +0.036 | 38.3 | +0.3 | 15 | BJ | - | - | 15 | 5 | ±0.0150 | 17.3 | +0.3 | 35 | BJ | - | - | 35 | 10 | ±0.0180 | 38.3 | +0.3 |
| 0 | 0 | 0 | 0 | 0 | 0 | ||||||||||||||||||||||||||||||
| 16 | BH | - | KH | 16 | 5 | +0.030 | 18.3 | +0.3 | 38 | BH | - | KH | 38 | 12 | +0.043 | 41.3 | +0.3 | 16 | BJ | - | KJ | 16 | 5 | ±0.0150 | 18.3 | +0.3 | 38 | BJ | - | KJ | 38 | 10 | ±0.0180 | 41.3 | +0.3 |
| 0 | 0 | 0 | 0 | 0 | 0 | ||||||||||||||||||||||||||||||
| 17 | BH | - | - | 17 | 5 | +0.030 | 19.3 | +0.3 | 40 | BH | - | - | 40 | 12 | +0.043 | 43.3 | +0.3 | 17 | BJ | - | - | 17 | 5 | ±0.0150 | 19.3 | +0.3 | 40 | BJ | - | - | 40 | 12 | ±0.0215 | 43.3 | +0.3 |
| 0 | 0 | 0 | 0 | 0 | 0 | ||||||||||||||||||||||||||||||
| 18 | BH | - | - | 18 | 6 | +0.030 | 20.8 | +0.3 | 42 | BH | - | - | 42 | 14 | +0.043 | 45.3 | +0.3 | 18 | BJ | - | - | 18 | 6 | ±0.0150 | 20.8 | +0.3 | 42 | BJ | - | - | 42 | 12 | ±0.0215 | 45.3 | +0.3 |
| 0 | 0 | 0 | 0 | 0 | 0 | ||||||||||||||||||||||||||||||
| 19 | BH | - | KH | 19 | 6 | +0.030 | 21.8 | +0.3 | 45 | BH | - | - | 45 | 14 | +0.043 | 48.8 | +0.3 | 19 | BJ | JJ | KJ | 19 | 6 | ±0.0150 | 21.8 | +0.3 | 45 | BJ | - | - | 45 | 14 | ±0.0215 | 48.8 | +0.3 |
| 0 | 0 | 0 | 0 | 0 | 0 | ||||||||||||||||||||||||||||||
*Bore diameter of φ35 (nominal diameter B), the suaft tolerance is +0.010 -0.025. * We can also handle standards not listed above. Consult MIKI PULLEY.
Standard Bore Diameters
| Standard (option) bore diameter, d1/d2 [mm] and restricted rated torque [N·m] | ||||||||||||||||||||||||||
| Nominal bore dia. | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 22 | 24 | 25 | 28 | 30 | 32 | 35 | 38 | 40 | 42 | 45 | ||
| Shaft tolerance | h7 (h6,g6) | B | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● |
| j6 (Option) | J | ○ | ○ | ○ | ○ | |||||||||||||||||||||
| k6 (Option) | K | ○ | ○ | ○ | ○ | ○ | ○ | ○ | ○ | ○ | ||||||||||||||||
| SFC-025 | d1 | ● | ● | ● | ● | ● | ● | ● | ||||||||||||||||||
| d2 | ● | ● | ● | ● | ● | ● | ● | |||||||||||||||||||
| SFC-030 | d1 | ● | ● | ● | ● | ● | ● | ● | ||||||||||||||||||
| d2 | ● | ● | ● | ● | ● | ● | ● | ● | ● | |||||||||||||||||
| SFC-035 | d1 | ● | ● | ● | ● | ● | ● | ● | ● | ● | ||||||||||||||||
| d2 | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ||||||||||||||
| SFC-040 | d1 | 9 | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | |||||||||||||
| d2 | 9 | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | |||||||||||
| SFC-050 | d1 | 18 | 20 | 22 | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | |||||||||
| d2 | 18 | 20 | 22 | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ||||||||
| SFC-055 | d1 | 31 | 34 | 36 | 38 | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | |||||||||
| d2 | 31 | 34 | 36 | 38 | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ||||||||||
| SFC-060 | d1 | 50 | 51 | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ||||||||||
| d2 | 50 | 51 | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | |||||||||
| SFC-080 | d1 | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | |||||||||||||||
| d2 | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ||||||||||||||
| SFC-090 | d1 | ● | ● | ● | ● | ● | ● | ● | ||||||||||||||||||
| d2 | ● | ● | ● | ● | ● | ● | ● | ● | ● | |||||||||||||||||
| SFC-100 | d1 | 226 | ● | ● | ● | ● | ● | |||||||||||||||||||
| d2 | 226 | ● | ● | ● | ● | ● | ||||||||||||||||||||
* The shaft tolerance for standard bore diameter is h7 (h6 or g6): designation B. However, for a bore diameter of ø35, the shaft tolerance is +0.010 -0.025. * Shaft tolerances j6/k6: designations J/K are optional, and are only supported for bore diameters marked with ○ . * Bore diameters marked with ● or numbers are supported as the standard bore diameters. Consult Miki Pulley regarding special arrangements which may be possible for other bore diameters. * Bore diameters whose fields contain numbers are restricted in their rated torque by the holding power of the shaft connection component because the bore diameter is small. The numbers indicate the rated torque [N•m].
How to Place an Order
SERVOFLEX SFC Option / Clean Room Compatible / Single Element Type
It is a clean room compatible product that has been cleaned, assembled (ISO class 6) and packed in consideration of its use in clean rooms.
Specifications
| Model | Shape type | Rated torque [N･m] | Misalignment | Max. rotation speed [min－1] | Torsional stiffness [N･m/rad] | Axial stiffness [N/mm] | Moment of inertia [kg･m2] | Mass [kg] | ||
| Parallel [mm] | Angular [°] | Axial [mm] | ||||||||
| SFC-020SA2 | C | 2 | 0.02 | 1 | ±0.15 | 10000 | 3700 | 64 | 2.39×10－6 | 0.025 |
| SFC-025SA2 | C | 4 | 0.02 | 1 | ±0.19 | 10000 | 5600 | 60 | 3.67×10－6 | 0.029 |
| SFC-030SA2 | A | 5 | 0.02 | 1 | ±0.2 | 10000 | 8000 | 64 | 4.09×10－6 | 0.034 |
| B | 5 | 0.02 | 1 | ±0.2 | 10000 | 8000 | 64 | 6.11×10－6 | 0.040 | |
| C | 5 | 0.02 | 1 | ±0.2 | 10000 | 8000 | 64 | 8.23×10－6 | 0.048 | |
| SFC-035SA2 | C | 10 | 0.02 | 1 | ±0.25 | 10000 | 18000 | 112 | 18.50×10－6 | 0.083 |
| SFC-040SA2 | A | 12 | 0.02 | 1 | ±0.3 | 10000 | 20000 | 80 | 16.71×10－6 | 0.077 |
| B | 12 | 0.02 | 1 | ±0.3 | 10000 | 20000 | 80 | 22.59×10－6 | 0.085 | |
| C | 12 | 0.02 | 1 | ±0.3 | 10000 | 20000 | 80 | 29.28×10－6 | 0.100 | |
| SFC-050SA2 | A | 25 | 0.02 | 1 | ±0.4 | 10000 | 32000 | 48 | 56.26×10－6 | 0.160 |
| B | 25 | 0.02 | 1 | ±0.4 | 10000 | 32000 | 48 | 76.71×10－6 | 0.178 | |
| C | 25 | 0.02 | 1 | ±0.4 | 10000 | 32000 | 48 | 99.38×10－6 | 0.207 | |
| SFC-055SA2 | C | 40 | 0.02 | 1 | ±0.42 | 10000 | 50000 | 43 | 188.7×10－6 | 0.315 |
| SFC-060SA2 | A | 60 | 0.02 | 1 | ±0.45 | 10000 | 70000 | 76.4 | 147.0×10－6 | 0.285 |
| B | 60 | 0.02 | 1 | ±0.45 | 10000 | 70000 | 76.4 | 206.3×10－6 | 0.328 | |
| C | 60 | 0.02 | 1 | ±0.45 | 10000 | 70000 | 76.4 | 270.0×10－6 | 0.387 | |
| SFC-080SA2 | C | 100 | 0.02 | 1 | ±0.55 | 10000 | 140000 | 128 | 716.3×10－6 | 0.720 |
* Types A / B / C are automatically specified by Miki Pulley according to the combination of bore diameters you select, and cannot be specified by the customer. * Check the Standard Bore Diameter list as rated torque may be restricted by the holding power of the shaft connection component. * Max. rotation speed does not take into account dynamic balance. * Torsional stiffness values given are measured values for the element alone. * The moment of inertia and mass are measured for the maximum bore diameter.
Dimensions
| Model | Shape type | d1 [mm] | d2 [mm] | D [mm] | N [mm] | L [mm] | LF [mm] | S [mm] | A1 [mm] | A2 [mm] | C [mm] | K [mm] | M Quantity - Nominal dia. | Tightening torque [N･m] | |||
| Min. | Max. | Min. | Max. | CC Low dust | CF Fluorine | ||||||||||||
| SFC-020SA2 | C | 5 | 10 | 5 | 11 | 26 | - | 23.15 | 10.75 | 1.65 | - | 9.5 | 3.3 | 10.6 | 1-M2.5 | 0.5 | 0.9 |
| SFC-025SA2 | C | 5 | 14 | 5 | 14 | 29 | - | 23.4 | 10.75 | 1.9 | - | 11 | 3.3 | 14.5 | 1-M2.5 | 0.5 | 0.9 |
| SFC-030SA2 | A | 5 | 10 | 5 | 10 | 34 | 21.6 | 27.3 | 12.4 | 2.5 | 8 | - | 3.75 | 14.5 | 1-M3 | 1.5 | 3.2 |
| B | 5 | 10 | Over10 | 16 | 34 | 21.6 | 27.3 | 12.4 | 2.5 | 8 | 12.5 | 3.75 | 14.5 | 1-M3 | 1.5 | 3.2 | |
| C | Over10 | 14 | Over10 | 16 | 34 | - | 27.3 | 12.4 | 2.5 | - | 12.5 | 3.75 | 14.5 | 1-M3 | 1.5 | 3.2 | |
| SFC-035SA2 | C | 6 | 16 | 6 | 19 | 39 | - | 34 | 15.5 | 3 | - | 14 | 4.5 | 17 | 1-M4 | 4 | 7.7 |
| SFC-040SA2 | A | 8 | 15 | 8 | 15 | 44 | 29.6 | 34 | 15.5 | 3 | 11 | - | 4.5 | 19.5 | 1-M4 | 4 | 7.7 |
| B | 8 | 15 | Over15 | 24 | 44 | 29.6 | 34 | 15.5 | 3 | 11 | 17 | 4.5 | 19.5 | 1-M4 | 4 | 7.7 | |
| C | Over15 | 19 | Over15 | 24 | 44 | - | 34 | 15.5 | 3 | - | 17 | 4.5 | 19.5 | 1-M4 | 4 | 7.7 | |
| SFC-050SA2 | A | 8 | 19 | 8 | 19 | 56 | 38 | 43.4 | 20.5 | 2.4 | 14.5 | - | 6 | 26 | 1-M5 | 7 | 12 |
| B | 8 | 19 | Over19 | 30 | 56 | 38 | 43.4 | 20.5 | 2.4 | 14.5 | 22 | 6 | 26 | 1-M5 | 7 | 12 | |
| C | Over19 | 25 | Over19 | 30 | 56 | - | 43.4 | 20.5 | 2.4 | - | 22 | 6 | 26 | 1-M5 | 7 | 12 | |
| SFC-055SA2 | C | 10 | 30 | 10 | 30 | 63 | - | 50.6 | 24 | 2.6 | - | 23 | 7.75 | 31 | 1-M6 | 13 | 22.5 |
| SFC-060SA2 | A | 11 | 24 | 11 | 24 | 68 | 46 | 53.6 | 25.2 | 3.2 | 17.5 | - | 7.75 | 31 | 1-M6 | 13 | 22.5 |
| B | 11 | 24 | Over24 | 35 | 68 | 46 | 53.6 | 25.2 | 3.2 | 17.5 | 26.5 | 7.75 | 31 | 1-M6 | 13 | 22.5 | |
| C | Over24 | 30 | Over24 | 35 | 68 | - | 53.6 | 25.2 | 3.2 | - | 26.5 | 7.75 | 31 | 1-M6 | 13 | 22.5 | |
| SFC-080SA2 | C | 18 | 35 | 18 | 40 | 82 | - | 68 | 30 | 8 | - | 28 | 9 | 38 | 1-M8 | 27 | 45 |
* Types A / B / C are automatically specified by Miki Pulley according to the combination of bore diameters you select, and cannot be specified by the customer. * The K dimension is the inner diameter of the element. For d2 dimension exceeding this value, shaft can be inserted only up to LF dimension to the d2 side hub. * The nominal diameter for the clamping bolt M is equal to the quantity minus the nominal diameter of the screw threads, where the quantity is for a hub on one side. * You can choose from two types of grease for clamp bolts: low dust generation grease and fluorine grease.
Standard Bore Diameters (Low Dust Generation Grease)
| Model | Standard bore diameter, d1/d2 [mm] and restricted rated torque [N･m] | |||||||||||||||||||||||||||
| d1･d2 | 5 | 6 | 6.35 | 7 | 8 | 9 | 9.525 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 22 | 24 | 25 | 28 | 30 | 32 | 35 | 38 | 40 | |
| SFC-020SA2 | d1 | 0.5 | 0.6 | 0.6 | 0.6 | 1.0 | 1.3 | 1.3 | ● | |||||||||||||||||||
| d2 | 0.5 | 0.6 | 0.6 | 0.6 | 1.0 | 1.3 | 1.3 | ● | ● | |||||||||||||||||||
| SFC-025SA2 | d1 | 0.5 | 0.5 | 0.5 | 0.5 | 0.8 | 0.8 | 0.8 | 1.8 | 1.8 | 2.3 | 2.3 | ● | |||||||||||||||
| d2 | 0.5 | 0.5 | 0.5 | 0.5 | 0.8 | 0.8 | 0.8 | 1.8 | 1.8 | 2.3 | 2.3 | ● | ||||||||||||||||
| SFC-030SA2 | d1 | 0.8 | 1.6 | 2 | 2.6 | 3.4 | 4.4 | 4.9 | ● | ● | ● | ● | ● | |||||||||||||||
| d2 | 0.8 | 1.6 | 2 | 2.6 | 3.4 | 4.4 | 4.9 | ● | ● | ● | ● | ● | ● | ● | ||||||||||||||
| SFC-035SA2 | d1 | 3.3 | 3.8 | 4.8 | 6.3 | 7.7 | 8.5 | 9.2 | ● | ● | ● | ● | ● | ● | ||||||||||||||
| d2 | 3.3 | 3.8 | 4.8 | 6.3 | 7.7 | 8.5 | 9.2 | ● | ● | ● | ● | ● | ● | ● | ● | ● | ||||||||||||
| SFC-040SA2 | d1 | 9 | 9 | 9 | 9 | 9 | ● | ● | ● | ● | ● | ● | ● | ● | ||||||||||||||
| d2 | 9 | 9 | 9 | 9 | 9 | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ||||||||||||
| SFC-050SA2 | d1 | 11 | 16 | 17 | 19 | 19 | 24 | 24 | 24 | ● | ● | ● | ● | ● | ● | ● | ● | ● | ||||||||||
| d2 | 11 | 16 | 17 | 19 | 19 | 24 | 24 | 24 | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | |||||||||
| SFC-055SA2 | d1 | 20 | 24 | 29 | 33 | 37 | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | |||||||||||
| d2 | 20 | 24 | 29 | 33 | 37 | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ||||||||||||
| SFC-060SA2 | d1 | 38 | 41 | 44 | 48 | 55 | 55 | 58 | ● | ● | ● | ● | ● | ● | ● | ● | ||||||||||||
| d2 | 38 | 41 | 44 | 48 | 55 | 55 | 58 | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | |||||||||||
| SFC-080SA2 | d1 | 54 | 60 | 65 | 75 | 85 | 90 | ● | ● | ● | ● | |||||||||||||||||
| d2 | 54 | 60 | 65 | 75 | 85 | 90 | ● | ● | ● | ● | ● | ● | ||||||||||||||||
* The shaft tolerance for standard bore diameter is h7 (h6 or g6): designation B. However, for a bore diameter of ø35, the shaft tolerance is +0.010 -0.025. * Bore diameters marked with ● or numbers are supported as the standard bore diameters. Consult Miki Pulley regarding special arrangements which may be possible for other bore diameters. * Bore diameters whose fields contain numbers are restricted in their rated torque by the holding power of the shaft connection component because the bore diameter is small. The numbers indicate the rated torque [N•m].
Standard Bore Diameters (Fluorine Grease)
| Model | Standard bore diameter, d1/d2 [mm] and restricted rated torque [N･m] | |||||||||||||||||||||||||||
| d1･d2 | 5 | 6 | 6.35 | 7 | 8 | 9 | 9.525 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 22 | 24 | 25 | 28 | 30 | 32 | 35 | 38 | 40 | |
| SFC-020SA2 | d1 | 0.7 | 0.7 | 0.7 | 0.8 | ● | ● | ● | ● | |||||||||||||||||||
| d2 | 0.7 | 0.7 | 0.7 | 0.8 | ● | ● | ● | ● | ● | |||||||||||||||||||
| SFC-025SA2 | d1 | 0.5 | 0.5 | 0.5 | 1.1 | 1.6 | 1.6 | 1.6 | 3.2 | 3.2 | ● | ● | ● | |||||||||||||||
| d2 | 0.5 | 0.5 | 0.5 | 1.1 | 1.6 | 1.6 | 1.6 | 3.2 | 3.2 | ● | ● | ● | ||||||||||||||||
| SFC-030SA2 | d1 | 0.8 | 2 | 2.4 | 3.1 | 4.3 | ● | ● | ● | ● | ● | ● | ● | |||||||||||||||
| d2 | 0.8 | 2 | 2.4 | 3.1 | 4.3 | ● | ● | ● | ● | ● | ● | ● | ● | ● | ||||||||||||||
| SFC-035SA2 | d1 | 3.6 | 5.2 | 6.4 | 8.2 | ● | ● | ● | ● | ● | ● | ● | ● | ● | ||||||||||||||
| d2 | 3.6 | 5.2 | 6.4 | 8.2 | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ||||||||||||
| SFC-040SA2 | d1 | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ||||||||||||||
| d2 | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ||||||||||||
| SFC-050SA2 | d1 | 11 | 17 | 19 | 20 | 22 | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ||||||||||
| d2 | 11 | 17 | 19 | 20 | 22 | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | |||||||||
| SFC-055SA2 | d1 | 28 | 37 | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | |||||||||||
| d2 | 28 | 37 | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ||||||||||||
| SFC-060SA2 | d1 | 40 | 44 | 49 | 53 | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ||||||||||||
| d2 | 40 | 44 | 49 | 53 | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | |||||||||||
| SFC-080SA2 | d1 | 60 | 66 | 71 | 81 | 90 | 95 | ● | ● | ● | ● | |||||||||||||||||
| d2 | 60 | 66 | 71 | 81 | 90 | 95 | ● | ● | ● | ● | ● | ● | ||||||||||||||||
* The shaft tolerance for standard bore diameter is h7 (h6 or g6): designation B. However, for a bore diameter of ø35, the shaft tolerance is +0.010 -0.025. * Bore diameters marked with ● or numbers are supported as the standard bore diameters. Consult Miki Pulley regarding special arrangements which may be possible for other bore diameters. * Bore diameters whose fields contain numbers are restricted in their rated torque by the holding power of the shaft connection component because the bore diameter is small. The numbers indicate the rated torque [N•m].
How to Place an Order
SERVOFLEX SFC Option / Clean Room Compatible / Double Element Type
It is a clean room compatible product that has been cleaned, assembled (ISO class 6) and packed in consideration of its use in clean rooms.
Specifications
| Model | Shape type | Rated torque [N･m] | Misalignment | Max. rotation speed [min－1] | Torsional stiffness [N･m/rad] | Axial stiffness [N/mm] | Moment of inertia [kg･m2] | Mass [kg] | ||
| Parallel [mm] | Angular [°] | Axial [mm] | ||||||||
| SFC-020DA2 | C | 2 | 0.15 | 1(On one side) | ±0.33 | 10000 | 1850 | 32 | 3.43×10－6 | 0.035 |
| SFC-025DA2 | C | 4 | 0.16 | 1(On one side) | ±0.38 | 10000 | 2800 | 30 | 5.26×10－6 | 0.040 |
| SFC-030DA2 | A | 5 | 0.18 | 1(On one side) | ±0.4 | 10000 | 4000 | 32 | 7.46×10－6 | 0.054 |
| B | 5 | 0.18 | 1(On one side) | ±0.4 | 10000 | 4000 | 32 | 9.49×10－6 | 0.060 | |
| C | 5 | 0.18 | 1(On one side) | ±0.4 | 10000 | 4000 | 32 | 11.60×10－6 | 0.069 | |
| SFC-035DA2 | C | 10 | 0.24 | 1(On one side) | ±0.5 | 10000 | 9000 | 56 | 27.03×10－6 | 0.122 |
| SFC-040DA2 | A | 12 | 0.24 | 1(On one side) | ±0.6 | 10000 | 10000 | 40 | 30.03×10－6 | 0.124 |
| B | 12 | 0.24 | 1(On one side) | ±0.6 | 10000 | 10000 | 40 | 35.91×10－6 | 0.132 | |
| C | 12 | 0.24 | 1(On one side) | ±0.6 | 10000 | 10000 | 40 | 42.60×10－6 | 0.147 | |
| SFC-050DA2 | A | 25 | 0.28 | 1(On one side) | ±0.8 | 10000 | 16000 | 24 | 99.32×10－6 | 0.252 |
| B | 25 | 0.28 | 1(On one side) | ±0.8 | 10000 | 16000 | 24 | 119.8×10－6 | 0.270 | |
| C | 25 | 0.28 | 1(On one side) | ±0.8 | 10000 | 16000 | 24 | 142.4×10－6 | 0.299 | |
| SFC-055DA2 | C | 40 | 0.31 | 1(On one side) | ±0.84 | 10000 | 25000 | 21.5 | 262.3×10－6 | 0.436 |
| SFC-060DA2 | A | 60 | 0.34 | 1(On one side) | ±0.9 | 10000 | 35000 | 38.2 | 258.6×10－6 | 0.450 |
| B | 60 | 0.34 | 1(On one side) | ±0.9 | 10000 | 35000 | 38.2 | 317.8×10－6 | 0.493 | |
| C | 60 | 0.34 | 1(On one side) | ±0.9 | 10000 | 35000 | 38.2 | 381.6×10－6 | 0.552 | |
| SFC-080DA2 | C | 100 | 0.52 | 1(On one side) | ±1.10 | 10000 | 70000 | 64 | 1047×10－6 | 1.050 |
Dimensions
| Model | Shape type | d1 [mm] | d2 [mm] | D [mm] | N [mm] | L [mm] | LF [mm] | LP [mm] | S [mm] | A1 [mm] | A2 [mm] | C [mm] | d3 [mm] | K [mm] | M Quantity - Nominal dia. | Tightening torque [N･m] | |||
| Min. | Max. | Min. | Max. | CC Low dust | CF Fluorine | ||||||||||||||
| SFC-020DA2 | C | 5 | 10 | 5 | 11 | 26 | - | 32.3 | 10.75 | 7.5 | 1.65 | - | 9.5 | 3.3 | 10.6 | 10.6 | 1-M2.5 | 0.5 | 0.9 |
| SFC-025DA2 | C | 5 | 14 | 5 | 14 | 29 | - | 32.8 | 10.75 | 7.5 | 1.9 | - | 11 | 3.3 | 15 | 14.5 | 1-M2.5 | 0.5 | 0.9 |
| SFC-030DA2 | A | 5 | 10 | 5 | 10 | 34 | 21.6 | 27.3 | 12.4 | 8 | 2.5 | 8 | - | 3.75 | 15 | 14.5 | 1-M3 | 1.5 | 3.2 |
| B | 5 | 10 | Over10 | 16 | 34 | 21.6 | 27.3 | 12.4 | 8 | 2.5 | 8 | 12.5 | 3.75 | 15 | 14.5 | 1-M3 | 1.5 | 3.2 | |
| C | Over10 | 14 | Over10 | 16 | 34 | - | 27.3 | 12.4 | 8 | 2.5 | - | 12.5 | 3.75 | 15 | 14.5 | 1-M3 | 1.5 | 3.2 | |
| SFC-035DA2 | C | 6 | 16 | 6 | 19 | 39 | - | 34 | 15.5 | 11 | 3 | - | 14 | 4.5 | 17 | 17 | 1-M4 | 4 | 7.7 |
| SFC-040DA2 | A | 8 | 15 | 8 | 15 | 44 | 29.6 | 34 | 15.5 | 11 | 3 | 11 | - | 4.5 | 20 | 19.5 | 1-M4 | 4 | 7.7 |
| B | 8 | 15 | Over15 | 24 | 44 | 29.6 | 34 | 15.5 | 11 | 3 | 11 | 17 | 4.5 | 20 | 19.5 | 1-M4 | 4 | 7.7 | |
| C | Over15 | 19 | Over15 | 24 | 44 | - | 34 | 15.5 | 11 | 3 | - | 17 | 4.5 | 20 | 19.5 | 1-M4 | 4 | 7.7 | |
| SFC-050DA2 | A | 8 | 19 | 8 | 19 | 56 | 38 | 43.4 | 20.5 | 14 | 2.4 | 14.5 | - | 6 | 26 | 26 | 1-M5 | 7 | 12 |
| B | 8 | 19 | Over19 | 30 | 56 | 38 | 43.4 | 20.5 | 14 | 2.4 | 14.5 | 22 | 6 | 26 | 26 | 1-M5 | 7 | 12 | |
| C | Over19 | 25 | Over19 | 30 | 56 | - | 43.4 | 20.5 | 14 | 2.4 | - | 22 | 6 | 26 | 26 | 1-M5 | 7 | 12 | |
| SFC-055DA2 | C | 10 | 30 | 10 | 30 | 63 | - | 50.6 | 24 | 15.5 | 2.6 | - | 23 | 7.75 | 31 | 31 | 1-M6 | 13 | 22.5 |
| SFC-060DA2 | A | 11 | 24 | 11 | 24 | 68 | 46 | 53.6 | 25.2 | 16.5 | 3.2 | 17.5 | - | 7.75 | 31 | 31 | 1-M6 | 13 | 22.5 |
| B | 11 | 24 | Over24 | 35 | 68 | 46 | 53.6 | 25.2 | 16.5 | 3.2 | 17.5 | 26.5 | 7.75 | 31 | 31 | 1-M6 | 13 | 22.5 | |
| C | Over24 | 30 | Over24 | 35 | 68 | - | 53.6 | 25.2 | 16.5 | 3.2 | - | 26.5 | 7.75 | 31 | 31 | 1-M6 | 13 | 22.5 | |
| SFC-080DA2 | C | 18 | 35 | 18 | 40 | 82 | - | 68 | 30 | 22 | 8 | - | 28 | 9 | 40 | 38 | 1-M8 | 27 | 45 |
* Types A / B / C are automatically specified by Miki Pulley according to the combination of bore diameters you select, and cannot be specified by the customer. * The K dimension is the inner diameter of the element. For d2 dimension exceeding this value, shaft can be inserted only up to LF dimension to the d2 side hub. * The nominal diameter for the clamping bolt M is equal to the quantity minus the nominal diameter of the screw threads, where the quantity is for a hub on one side. * You can choose from two types of grease for clamp bolts: low dust generation grease and fluorine grease.
Standard Bore Diameters (Low Dust Generation Grease
| Model | Standard bore diameter, d1/d2 [mm] and restricted rated torque [N･m] | |||||||||||||||||||||||||||
| d1･d2 | 5 | 6 | 6.35 | 7 | 8 | 9 | 9.525 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 22 | 24 | 25 | 28 | 30 | 32 | 35 | 38 | 40 | |
| SFC-020DA2 | d1 | 0.5 | 0.6 | 0.6 | 0.6 | 1.0 | 1.3 | 1.3 | ● | |||||||||||||||||||
| d2 | 0.5 | 0.6 | 0.6 | 0.6 | 1.0 | 1.3 | 1.3 | ● | ● | |||||||||||||||||||
| SFC-025DA2 | d1 | 0.5 | 0.5 | 0.5 | 0.5 | 0.8 | 0.8 | 0.8 | 1.8 | 1.8 | 2.3 | 2.3 | ● | |||||||||||||||
| d2 | 0.5 | 0.5 | 0.5 | 0.5 | 0.8 | 0.8 | 0.8 | 1.8 | 1.8 | 2.3 | 2.3 | ● | ||||||||||||||||
| SFC-030DA2 | d1 | 0.8 | 1.6 | 2 | 2.6 | 3.4 | 4.4 | 4.9 | ● | ● | ● | ● | ● | |||||||||||||||
| d2 | 0.8 | 1.6 | 2 | 2.6 | 3.4 | 4.4 | 4.9 | ● | ● | ● | ● | ● | ● | ● | ||||||||||||||
| SFC-035DA2 | d1 | 3.3 | 3.8 | 4.8 | 6.3 | 7.7 | 8.5 | 9.2 | ● | ● | ● | ● | ● | ● | ||||||||||||||
| d2 | 3.3 | 3.8 | 4.8 | 6.3 | 7.7 | 8.5 | 9.2 | ● | ● | ● | ● | ● | ● | ● | ● | ● | ||||||||||||
| SFC-040DA2 | d1 | 9 | 9 | 9 | 9 | 9 | ● | ● | ● | ● | ● | ● | ● | ● | ||||||||||||||
| d2 | 9 | 9 | 9 | 9 | 9 | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ||||||||||||
| SFC-050DA2 | d1 | 11 | 16 | 17 | 19 | 19 | 24 | 24 | 24 | ● | ● | ● | ● | ● | ● | ● | ● | ● | ||||||||||
| d2 | 11 | 16 | 17 | 19 | 19 | 24 | 24 | 24 | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | |||||||||
| SFC-055DA2 | d1 | 20 | 24 | 29 | 33 | 37 | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | |||||||||||
| d2 | 20 | 24 | 29 | 33 | 37 | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ||||||||||||
| SFC-060DA2 | d1 | 38 | 41 | 44 | 48 | 55 | 55 | 58 | ● | ● | ● | ● | ● | ● | ● | ● | ||||||||||||
| d2 | 38 | 41 | 44 | 48 | 55 | 55 | 58 | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | |||||||||||
| SFC-080DA2 | d1 | 54 | 60 | 65 | 75 | 85 | 90 | ● | ● | ● | ● | |||||||||||||||||
| d2 | 54 | 60 | 65 | 75 | 85 | 90 | ● | ● | ● | ● | ● | ● | ||||||||||||||||
* The shaft tolerance for standard bore diameter is h7 (h6 or g6): designation B. However, for a bore diameter of ø35, the shaft tolerance is +0.010 -0.025. * Bore diameters marked with ● or numbers are supported as the standard bore diameters. Consult Miki Pulley regarding special arrangements which may be possible for other bore diameters. * Bore diameters whose fields contain numbers are restricted in their rated torque by the holding power of the shaft connection component because the bore diameter is small. The numbers indicate the rated torque [N•m].
Standard Bore Diameters (Fluorine Grease)
| Model | Standard bore diameter, d1/d2 [mm] and restricted rated torque [N･m] | |||||||||||||||||||||||||||
| d1･d2 | 5 | 6 | 6.35 | 7 | 8 | 9 | 9.525 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 22 | 24 | 25 | 28 | 30 | 32 | 35 | 38 | 40 | |
| SFC-020DA2 | d1 | 0.7 | 0.7 | 0.7 | 0.8 | ● | ● | ● | ● | |||||||||||||||||||
| d2 | 0.7 | 0.7 | 0.7 | 0.8 | ● | ● | ● | ● | ● | |||||||||||||||||||
| SFC-025DA2 | d1 | 0.5 | 0.5 | 0.5 | 1.1 | 1.6 | 1.6 | 1.6 | 3.2 | 3.2 | ● | ● | ● | |||||||||||||||
| d2 | 0.5 | 0.5 | 0.5 | 1.1 | 1.6 | 1.6 | 1.6 | 3.2 | 3.2 | ● | ● | ● | ||||||||||||||||
| SFC-030DA2 | d1 | 0.8 | 2 | 2.4 | 3.1 | 4.3 | ● | ● | ● | ● | ● | ● | ● | |||||||||||||||
| d2 | 0.8 | 2 | 2.4 | 3.1 | 4.3 | ● | ● | ● | ● | ● | ● | ● | ● | ● | ||||||||||||||
| SFC-035DA2 | d1 | 3.6 | 5.2 | 6.4 | 8.2 | ● | ● | ● | ● | ● | ● | ● | ● | ● | ||||||||||||||
| d2 | 3.6 | 5.2 | 6.4 | 8.2 | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ||||||||||||
| SFC-040DA2 | d1 | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ||||||||||||||
| d2 | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ||||||||||||
| SFC-050DA2 | d1 | 11 | 17 | 19 | 20 | 22 | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ||||||||||
| d2 | 11 | 17 | 19 | 20 | 22 | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | |||||||||
| SFC-055DA2 | d1 | 28 | 37 | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | |||||||||||
| d2 | 28 | 37 | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ||||||||||||
| SFC-060DA2 | d1 | 40 | 44 | 49 | 53 | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ||||||||||||
| d2 | 40 | 44 | 49 | 53 | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | |||||||||||
| SFC-080DA2 | d1 | 60 | 66 | 71 | 81 | 90 | 95 | ● | ● | ● | ● | |||||||||||||||||
| d2 | 60 | 66 | 71 | 81 | 90 | 95 | ● | ● | ● | ● | ● | ● | ||||||||||||||||
* The shaft tolerance for standard bore diameter is h7 (h6 or g6): designation B. However, for a bore diameter of ø35, the shaft tolerance is +0.010 -0.025. * Bore diameters marked with ● or numbers are supported as the standard bore diameters. Consult Miki Pulley regarding special arrangements which may be possible for other bore diameters. * Bore diameters whose fields contain numbers are restricted in their rated torque by the holding power of the shaft connection component because the bore diameter is small. The numbers indicate the rated torque [N•m].
How to Place an Order
Part Number
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|---|
| Part Number | Minimum order quantity | Volume Discount | RoHS | Allowable Torque Range (N•m) | Hole diameter D1 (mm) | Hole diameter D2 (mm) | Outer Diameter (mm) | Overall Length (mm) | Allowable Torque (Nm) | Maximum Rotation Speed (r/min) | Allowable Lateral Misalignment Range (mm) | Allowable Lateral Misalignment (mm) | Allowable Angular Misalignment (deg) | Allowable Axial Clearance (±) (mm) | Moment of Inertia (kg･m2) | The size of the tapered adapter (mm) | Keyway Standard | Disc Specifications | Allowable Angular Misalignment Detail (deg) |
|---|
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Basic information
| Type | Type of Flat Springs | Allowable Misalignment | Angular Misalignment / Eccentricity / Axial Misalignment | Application | Servo Motor / Stepping Motor / Encoder |
|---|---|---|---|---|---|
| Max. Rotational Speed Range(r/min) | 4,001 to 10,000 | Feature | High torsional rigidity / High Torque / High Accuracy / High durability / Backlash 0 / Low Inertia Moment / Small | Body Material | Aluminum |
| Category | Coupling body | Disc Part Material | Stainless Steel | Operating Temperature Range(°C) | -30::100 |
Configure
Basic Attributes
-
Allowable Torque(Nm)
-
Maximum Rotation Speed(r/min)
-
Allowable Angular Misalignment(deg)
-
The size of the tapered adapter(mm)
- 11
- 14
- 16
-
Keyway Standard
-
Type
- SFC-DA2
- SFC-DA2-BC
- SFC-SA2
- SFC-SA2-BC
-
Allowable Torque Range(N•m)
-
Hole diameter D1(mm)
-
Hole diameter D2(mm)
-
Outer Diameter(mm)
-
Overall Length(mm)
-
Allowable Lateral Misalignment Range(mm)
-
Allowable Lateral Misalignment(mm)
-
Disc Specifications
- Double
- Single
-
Filter by CAD data type
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- 12 Days or Less
Optional Attributes
- The specifications and dimensions of some parts may not be fully covered. For exact details, refer to manufacturer catalogs .
Tech Support
- Technical Support
- Tel：+49 69 668173-0 / FAX：+49 69 668173-360
- Technical Inquiry
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