Slit couplings / hub clamping / cross slot / body: aluminium, steel, stainless steel / ASK / VMA Antriebstechnik
The ASK sliced coupling is made from one piece and is the ideal tool for equalizing all kind o offset. High stiffness and high speed is possible
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Type ASK Patented, Sliced Coupling – with Customizable Dimension Options
Product Description
The ASK sliced coupling is the ideal tool for equalizing all kinds of offset. Its unique slit structure represents the perfect solution for misaligned shafts or installation situations involving high levels of resonance.
But the benefits of the parallel slit levels are not restricted to resonance damping: The ASK type series is also ideally suited to applications involving frequent load changes, even during reversing duty.
Another standout feature of this coupling is its one-part, compact design. The resulting high torsional stiffness and true running accuracy create excellent rotational characteristics that enable high speeds to be achieved. Thanks to the simple assembly method, which can be performed in a matter of seconds using just a single DIN 911 tool, couplings of this type can be incorporated into any drive train.
ASK sliced couplings from the standard range are suitable for shaft diameters ranging from 4 to 60 mm. However, we also offer a large number of special designs that allow you to choose from a wide range of fastening options – from the standard clamping hub connection, grub screw fastening on the shaft, spread hubs for hollow shafts, half-shell designs, and thread shaft connections, right through to VMA clamping device fastening methods that are suitable for larger diameters and ensure completely backlash-free power transmission.
Sliced couplings can be used in a varied range of applications. Their technology can be adapted to meet customer-specific requirements.
But the benefits of the parallel slit levels are not restricted to resonance damping: The ASK type series is also ideally suited to applications involving frequent load changes, even during reversing duty.
Another standout feature of this coupling is its one-part, compact design. The resulting high torsional stiffness and true running accuracy create excellent rotational characteristics that enable high speeds to be achieved. Thanks to the simple assembly method, which can be performed in a matter of seconds using just a single DIN 911 tool, couplings of this type can be incorporated into any drive train.
ASK sliced couplings from the standard range are suitable for shaft diameters ranging from 4 to 60 mm. However, we also offer a large number of special designs that allow you to choose from a wide range of fastening options – from the standard clamping hub connection, grub screw fastening on the shaft, spread hubs for hollow shafts, half-shell designs, and thread shaft connections, right through to VMA clamping device fastening methods that are suitable for larger diameters and ensure completely backlash-free power transmission.
Sliced couplings can be used in a varied range of applications. Their technology can be adapted to meet customer-specific requirements.
Offset equalizing options with ASK couplings
 |  |  |
| axial | lateral | angular |
ASK-BB Aluminum Alloy
Dimensions
| Type | ASK-BB aluminum alloy | ||||||||||
| Dimensions in mm | |||||||||||
| ASK size | 018 | 022 | 020 | 025 | 030 | 040 | 050 | 060 | 070 | 080 | 100 |
| L | 17 | 20 | 28 | 28 | 40 | 48 | 65 | 80 | 95 | 100 | 118 |
| M | 2.5 | 2.75 | 4 | 4 | 5.5 | 5.5 | 9.5 | 12.5 | 12.5 | 12.5 | 15 |
| N | 5 | 5.5 | 8 | 8 | 11 | 11 | 19 | 25 | 25 | 25 | 30 |
| E | 5.5 | 7.2 | 6.5 | 9 | 10.5 | 14 | 18.5 | 21 | 25 | 29 | 37 |
| D | 18 | 22 | 20 | 25 | 30 | 40 | 50 | 60 | 70 | 80 | 100 |
| D1 ISO fit H7 | 3-6 | 3-10 | 4-8 | 6-12 | 6-14 | 8-19 | 12-26 | 14-28 | 20-35 | 25-42 | 30-55 |
| D2 ISO fit H7 | 3-6 | 3-10 | 4-8 | 6-12 | 6-14 | 8-19 | 12-26 | 14-28 | 20-35 | 25-42 | 30-55 |
| D1 pre-drilled | 2.5 | 2.5 | 2.5 | 3.5 | 5.5 | 5.5 | 8.5 | 8.5 | 18.5 | 23.5 | 28.5 |
| D2 pre-drilled | 6 | 2.5 | 2.5 | 3.5 | 5.5 | 5.5 | 8.5 | 8.5 | 18.5 | 23.5 | 28.5 |
| G Din 912 | M2.5 | M2.5 | M2.5 | M3 | M4 | M5 | M6 | M8 | M8 | M8 | M10 |
| Fastening torque of screw Ma max. Nm | 1.57 | 1.57 | 1.57 | 1.88 | 4.30 | 8.45 | 14.5 | 35 | 35 | 35 | 70 |
| Number of screws | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 4 | 4 | 4 |
| Installation wrench | DIN 911 | ||||||||||
Technical Data
| Technical data | ||||||||||||
| Rated torque Nm | 2 | 2 | 3 | 6 | 8 | 18 | 30 | 65 | 120 | 170 | 300 | |
| Torsional stiffness 103 Nm/Rad | 0.2 | 0.2 | 0.8 | 3.4 | 4.6 | 11 | 24 | 54 | 88 | 93 | 190 | |
| Mass | 8 | 15 | 20 | 30 | 50 | 100 | 300 | 400 | 700 | 900 | 1500 | |
| Moment of inertia 10-6 kgm2 | 0.3 | 0.4 | 1.5 | 4.3 | 11 | 35 | 114 | 285 | 480 | 695 | 1060 | |
| Permitted shaft offset | angular ° | 1 | 1 | 2 | 2 | 1.7 | 1.7 | 1.4 | 1.4 | 1.1 | 1.1 | 1.1 |
| lateral mm | 0.3 | 0.3 | 0.2 | 0.2 | 0.2 | 0.3 | 0.3 | 0.3 | 0.3 | 0.3 | 0.3 | |
| axial mm | 0.4 | 0.4 | 0.2 | 0.2 | 0.2 | 0.2 | 0.2 | 0.3 | 0.3 | 0.3 | 0.3 | |
Material
Material: Aluminum alloy; rust-proof design; steel; all parts are also available with a feather key ways.
Speed: > 6,000 rpm; max. speeds of approx. 20,000 rpm on request; high temperatures of up to 500°C possible
Speed: > 6,000 rpm; max. speeds of approx. 20,000 rpm on request; high temperatures of up to 500°C possible
 |  |
| ASK 018 BB / 022 | ASK 020-100 BB |
ASK-BB Steel/Stainless Steel
Dimensions
| Type | ASK-BB steel/stainless steel | ||||||||
| Dimensions in mm | |||||||||
| ASK size | 020 | 025 | 030 | 040 | 050 | 060 | 070 | 080 | 100 |
| L | 28 | 28 | 40 | 48 | 65 | 80 | 95 | 100 | 118 |
| M | 4 | 4 | 5.5 | 5.5 | 9.5 | 12.5 | 12.5 | 12.5 | 15 |
| N | 8 | 8 | 11 | 11 | 19 | 25 | 25 | 25 | 30 |
| E | 6.5 | 9 | 10.5 | 14 | 18.5 | 21 | 25 | 29 | 37 |
| D | 20 | 25 | 30 | 40 | 50 | 60 | 70 | 80 | 100 |
| D1 ISO fit H7 | 4-8 | 6-12 | 6-14 | 8-19 | 12-26 | 14-28 | 20-35 | 25-42 | 30-55 |
| D2 ISO fit H7 | 4-8 | 6-12 | 6-14 | 8-19 | 12-26 | 14-28 | 20-35 | 25-42 | 30-55 |
| D1 pre-drilled | 2.5 | 3.5 | 5.5 | 5.5 | 8.5 | 14.5 | 18.5 | 23.5 | 28.5 |
| D2 pre-drilled | 2.5 | 3.5 | 5.5 | 5.5 | 8.5 | 14.5 | 18.5 | 23.5 | 28.5 |
| G Din 912 | M2.5 | M3 | M4 | M5 | M6 | M8 | M8 | M8 | M10 |
| Fastening torque of screw Ma max. Nm | 1.57 | 1.88 | 4.30 | 8.45 | 14.5 | 35 | 35 | 35 | 70 |
| Number of screws | 2 | 2 | 2 | 2 | 2 | 2 | 4 | 4 | 4 |
Technical Data
| Technical data | ||||||||||
| Rated torque Nm | 10 | 14 | 18 | 30 | 60 | 110 | 190 | 240 | 400 | |
| Torsional stiffness 103 Nm/Rad | 0.8 | 6 | 8 | 21 | 50 | 95 | 120 | 140 | 180 | |
| Mass (approx.) in g | 45 | 75 | 140 | 320 | 650 | 1300 | 1850 | 3100 | 4200 | |
| Permitted shaft offset | angular ° | 1 | 2 | 1.7 | 1.7 | 1 | 1 | 1 | 1 | 1 |
| lateral mm | 0.2 | 0.2 | 0.2 | 0.3 | 0.3 | 0.3 | 0.3 | 0.2 | 0.2 | |
| axial mm | 0.2 | 0.2 | 0.2 | 0.2 | 0.2 | 0.2 | 0.2 | 0.2 | 0.2 | |
Material
Material: 1.4305/steel
 |  |
| ASK 018 BB / 022 BB | ASK 020 BB / 100 BB |
Sliced Couplings for Various Installation Situations and Shaft Connections
Material: Aluminum alloy; stainless steel; steel; PEEK |  |
| Coupling with spread hub for hollow shafts | Coupling with thread connection for thread shafts |
| (order example: ASK 025 BC 6H7/8h6) | (order example: ASK 018 M-M M5/M6) |
Part Number
|
|---|
| ASK-018-BB-[3-6/1]-[3-6/1]-AL |
| ASK-020-BB-[4-8/1]-[4-8/1]-AL |
| ASK-020-BB-[4-8/1]-[4-8/1]-SS |
| ASK-022-BB-[3-10/1]-[3-10/1]-AL |
| ASK-025-BB-[6-12/1]-[6-12/1]-AL |
| ASK-025-BB-[6-12/1]-[6-12/1]-S |
| ASK-025-BB-[6-12/1]-[6-12/1]-SS |
| ASK-030-BB-[6-14/1]-[6-14/1]-AL |
| ASK-030-BB-[6-14/1]-[6-14/1]-S |
| ASK-030-BB-[6-14/1]-[6-14/1]-SS |
| ASK-040-BB-5.5-5.5-AL |
| ASK-040-BB-5.5-[8-19/1]-AL |
| ASK-040-BB-[8-19/1]-5.5-AL |
| ASK-040-BB-[8-19/1]-[8-19/1]-AL |
| ASK-040-BB-[8-19/1]-[8-19/1]-S |
| ASK-040-BB-[8-19/1]-[8-19/1]-SS |
| ASK-050-BB-[12-26/1]-[12-26/1]-AL |
| ASK-050-BB-[12-26/1]-[12-26/1]-S |
| ASK-050-BB-[12-26/1]-[12-26/1]-SS |
| ASK-060-BB-[14-28/1]-[14-28/1]-AL |
| ASK-060-BB-[14-28/1]-[14-28/1]-S |
| ASK-060-BB-[14-28/1]-[14-28/1]-SS |
| ASK-070-BB-[20-35/1]-[20-35/1]-AL |
| ASK-070-BB-[20-35/1]-[20-35/1]-S |
| ASK-070-BB-[20-35/1]-[20-35/1]-SS |
| ASK-080-BB-[25-42/1]-[25-42/1]-AL |
| ASK-080-BB-[25-42/1]-[25-42/1]-S |
| ASK-080-BB-[25-42/1]-[25-42/1]-SS |
| ASK-100-BB-[30-55/1]-[30-55/1]-AL |
| ASK-100-BB-[30-55/1]-[30-55/1]-S |
| ASK-100-BB-[30-55/1]-[30-55/1]-SS |
| Part Number |
Standard Unit Price
| Minimum order quantity | Volume Discount | RoHS | Shaft Bore Dia. (machined) D1 (mm) | Shaft Bore Dia. (machined) D2 (mm) | Outer Dia. A (mm) | Overall Length W (mm) | Body Material | Allowable Torque (Nm) | Allowable Lateral Misalignment (mm) | Allowable Angular Misalignment (deg) | Allowable Axial Clearance (±) (mm) | Moment of Inertia (kg･m2) | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
- | 1 | 4 Days | 10 | 2.5 | 2.5 | 18 | 17 | Aluminum Alloy | 2 | 0.3 | 1 | 0.4 | 0.0000003 | ||
- | 1 | 4 Days | 10 | 2.5 | 2.5 | 20 | 28 | Aluminum Alloy | 3 | 0.2 | 2 | 0.2 | 0.0000015 | ||
- | 1 | 4 Days | 10 | 2.5 | 2.5 | 20 | 28 | Stainless Steel | 10 | 0.2 | 1 | 0.2 | - | ||
- | 1 | 4 Days | 10 | 2.5 | 2.5 | 22 | 20 | Aluminum Alloy | 2 | 0.2 | 1 | 0.4 | 0.0000004 | ||
- | 1 | 4 Days | 10 | 3.5 | 3.5 | 25 | 28 | Aluminum Alloy | 6 | 0.2 | 2 | 0.2 | 0.0000043 | ||
- | 1 | 4 Days | 10 | 3.5 | 3.5 | 25 | 28 | Steel | 10 | 0.2 | 1 | 0.2 | - | ||
- | 1 | 4 Days | 10 | 3.5 | 3.5 | 25 | 28 | Stainless Steel | 14 | 0.2 | 2 | 0.2 | - | ||
- | 1 | 4 Days | 10 | 5.5 | 5.5 | 30 | 40 | Aluminum Alloy | 8 | 0.3 | 1.7 | 0.2 | 0.000011 | ||
- | 1 | 4 Days | 10 | 5.5 | 5.5 | 30 | 40 | Steel | 14 | 0.2 | 2 | 0.2 | - | ||
- | 1 | 4 Days | 10 | 5.5 | 5.5 | 30 | 40 | Stainless Steel | 18 | 0.2 | 1.7 | 0.2 | - | ||
- | 1 | 4 Days | 10 | 5.5 | 5.5 | 40 | 48 | Aluminum Alloy | 18 | 0.3 | 1.7 | 0.2 | 0.000035 | ||
- | 1 | 4 Days | 10 | 5.5 | 5.5 | 40 | 48 | Aluminum Alloy | 18 | 0.3 | 1.7 | 0.2 | 0.000035 | ||
- | 1 | 4 Days | 10 | 5.5 | 5.5 | 40 | 48 | Aluminum Alloy | 18 | 0.3 | 1.7 | 0.2 | 0.000035 | ||
- | 1 | 4 Days | 10 | 5.5 | 5.5 | 40 | 48 | Aluminum Alloy | 18 | 0.3 | 1.7 | 0.2 | 0.000035 | ||
- | 1 | 4 Days | 10 | 5.5 | 5.5 | 40 | 48 | Steel | 18 | 0.2 | 1.7 | 0.2 | - | ||
- | 1 | 4 Days | 10 | 5.5 | 5.5 | 40 | 48 | Stainless Steel | 30 | 0.3 | 1.7 | 0.2 | - | ||
- | 1 | 4 Days | 10 | 8.5 | 8.5 | 50 | 65 | Aluminum Alloy | 30 | 0.3 | 1.4 | 0.2 | 0.000114 | ||
- | 1 | 4 Days | 10 | 8.5 | 8.5 | 50 | 65 | Steel | 30 | 0.3 | 1.7 | 0.2 | - | ||
- | 1 | 4 Days | 10 | 8.5 | 8.5 | 50 | 65 | Stainless Steel | 60 | 0.3 | 1 | 0.2 | - | ||
- | 1 | 4 Days | 10 | 8.5 | 8.5 | 60 | 80 | Aluminum Alloy | 65 | 0.3 | 1.4 | 0.3 | 0.000285 | ||
- | 1 | 4 Days | 10 | 14.5 | 14.5 | 60 | 80 | Steel | 60 | 0.3 | 1 | 0.2 | - | ||
- | 1 | 4 Days | 10 | 14.5 | 14.5 | 60 | 80 | Stainless Steel | 110 | 0.3 | 1 | 0.2 | - | ||
- | 1 | 4 Days | 10 | 18.5 | 18.5 | 70 | 95 | Aluminum Alloy | 120 | 0.3 | 1.1 | 0.3 | 0.00048 | ||
- | 1 | 4 Days | 10 | 18.5 | 18.5 | 70 | 95 | Steel | 110 | 0.3 | 1 | 0.2 | - | ||
- | 1 | 4 Days | 10 | 18.5 | 18.5 | 70 | 95 | Stainless Steel | 190 | 0.3 | 1 | 0.2 | - | ||
- | 1 | 4 Days | 10 | 23.5 | 23.5 | 80 | 100 | Aluminum Alloy | 170 | 0.3 | 1.1 | 0.3 | 0.000695 | ||
- | 1 | 4 Days | 10 | 23.5 | 23.5 | 80 | 100 | Steel | 190 | 0.3 | 1 | 0.2 | - | ||
- | 1 | 4 Days | 10 | 23.5 | 23.5 | 80 | 100 | Stainless Steel | 240 | 0.2 | 1 | 0.2 | - | ||
- | 1 | 4 Days | 10 | 28.5 | 28.5 | 100 | 118 | Aluminum Alloy | 300 | 0.3 | 1.1 | 0.3 | 0.00106 | ||
- | 1 | 4 Days | 10 | 28.5 | 28.5 | 100 | 118 | Steel | 240 | 0.2 | 1 | 0.2 | - | ||
- | 1 | 4 Days | 10 | 28.5 | 28.5 | 100 | 118 | Stainless Steel | 600 | 0.2 | 1 | 0.2 | - |
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Basic information
| Type | With Slit | Allowable Misalignment | Angular Misalignment / Eccentricity / Axial Misalignment | Application | Standard / Servo Motor / Stepping Motor / Encoder |
|---|---|---|---|---|---|
| Max. Rotational Speed(r/min) | 20000 |
Configure
Basic Attributes
-
Shaft Bore Dia. (machined) D1(mm)
-
Shaft Bore Dia. (machined) D2(mm)
-
Outer Dia. A(mm)
-
Overall Length W(mm)
-
Body Material
-
Allowable Torque(Nm)
-
Allowable Lateral Misalignment(mm)
-
Allowable Angular Misalignment(deg)
-
Type
- ASK
Filter by standard shipping days
-
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- 4 Days or Less
Optional Attributes
- The specifications and dimensions of some parts may not be fully covered. For exact details, refer to manufacturer catalogs .
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