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Spur gears / tooth width / hub dimension configurable / contact angle 20 degrees (Part Numbers - CAD Download)

Spur gears / tooth width / hub dimension configurable / contact angle 20 degrees

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MISUMI

MISUMI

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Lifting Mechanism Using Rack and Pinions
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Back to the Category Spur Gears

Technical Drawing - Spur Gears

Spur Gears/Tooth Width/Hub Dimension Configurable/Pressure Angle 20Deg.:Related Image
Open the technical drawing in the new window

 

Available dimensions and tolerances can be found under the tab More Information.

Basic Properties (e.g., material, hardness, coating, tolerance) - Spur Gears

Type Material Surface Treatment Accessory
Straight BoreStraight Bore + TapKeyway + Tap
GEFHBGEFBGEFKBEN 1.1191 Equiv.-Set Screw
(EN 1.7220 Equiv., Black Oxide)
GEFHBBGEFBBGEFKBBBlack Oxide
GEFHBGGEFBGGEFKBGElectroless Nickel Plating
GEFHBSGEFBSGEFKBSEN 1.4301 Equiv.-Set Screw (EN 1.4301 Equiv.)
Set Screw is not included in Straight Bore products.

Further specifications can be found under the tab More Information.

Composition of a Product Code - Spur Gears

Part Number-Number
of Teeth		-B-P-W-H
GEFHB1.0
GEFKBG2.0		-
-		30
32		-
-		8
15		-
-		15
20N		-
-		W10
W0		-H26

Alterations - Spur Gears

Spur Gears/Tooth Width/Hub Dimension Configurable/Pressure Angle 20Deg.:Related Image

General Information - Spur Gears

Spur gears - front gear with through hole - spur gear with spring pin - spur gear made of brass - brass pinion - plastic - spur gear with ball bearing

 

Selection details of spur gears

- Material: steel, stainless steel, sintered steel, nylon, polyacetal, brass, aluminum, cast iron

- Coatings: burnished, nickel-plated

- Heat treatment: induction hardened

- Shaft diameter tolerances: H7, H8

- Tooth flank clearance: N5, N7, N8, N9, N12

- Module: 0.3, 0.5, 0.75, 0.8, 1, 1.25, 1.5, 2, 2.5, 3, 4, 4.5, 5, 6, 8, 10, 15, 20

- Pressure angle: 20°

- Shaft diameter: 2 mm to 50 mm

- Number of teeth: 8 to 200

- Tooth width: 2 mm to 90 mm

 

Description/Basics

The spur gears offered are generally machine elements that serve the non-slip transmission of force, movement transmission or movement change. The teeth of the cylinder wheels grip each other during transmission and largely roll over the tooth flanks. The tooth shape of the spur gear is convexly shaped in the shaped tooth system. At the beginning of the intervention, a rolling resistance acts on the tooth flank, which becomes a sliding friction in the course of the rotation.

A combination of gear wheels and rack gears is useful in the construction of rack gear. This allows motor rotary motion or other rotary motion to be converted into linear motion. rack gear boxes are theoretically possible in an endless assembly. Limits here only set the length of the rack gears for the rack gear drive.

Gear wheels with straight gearing are particularly suitable for the construction of gearboxes. The advantage of straight gearing as opposed to helical gears, is the possibility of transmitting a higher torque. It should be noted that with increasing speed within the transmission ratio or reduction, the torque to be transmitted decreases.

When designing spur gear pairs, the ratio of the gear ratio (number of teeth) and the module of the respective gear wheels must be observed.
The backlash is another important factor that must be considered during construction. Reverse play is understood as the result of the play that the change in the direction of rotation of a single gear wheel pair between the teeth. The risk of reverse play can be reduced if either the diameter or the number of teeth of the cogwheel pairing do not deviate too much from one another. If high wear is to be expected due to the pairing of gears, the MISUMI online shop offers gears with a hardened key-type.

For applications with the same rotational direction, it is possible to use an intermediate gear with integrated bearing on a cantilever shaft. The bearing number used can be found under the tab More Information. An overview of tolerances and permissible radial bearing deviations can be found in the following PDF.

In addition to gear wheels, MISUMI also offers suitable rotary shafts for the construction of a transmission. The straight front wheels can be assembled on these and secured with a set screw or machine keys (key with adjusting screw). This PDF provides an overview of the configurable mountings for the shaft rotation and keyway tolerances.
The continuous adjusting of a spur gear can be realized, among other things, by means of a clamping sleeve. The MISUMI online shop offers spur gears with clamping sleeve. Alternatively, we also offer individual keyless bushing that you can customize to your needs.

 

Application Examples - Spur Gears

Application example: workpiece transport - spur gear - rack gear - roller bearings - workpiece

Application example - spur gear with rack gear
(1) Spur gear, (2) Clamping knobs, (3) Rack gear

Application example: rack gear - spur gear with rack gear - handle - rotary handle

Application example - spur gear
(1) Spur gear, (2) Workpiece, (3) Rollers

 

Industrial Applications

3D printer industry
Automotive industry
Pharmaceutical industry
Packaging industry

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Part Number
GEFBB1.5-16-[10-20/1]-[6-12/1]-W[0-20/1]
GEFBB1.5-18-[10-20/1]-[6-12/1]-W[0-20/1]
GEFBB1.5-20-[10-20/1]-[6-12/1]-W[0-20/1]
GEFBB1.5-24-[10-20/1]-[6-18/1]-W[0-20/1]
GEFBB1.5-25-[10-20/1]-[6-18/1]-W[0-20/1]
GEFBB1.5-26-[10-20/1]-[6-18/1]-W[0-20/1]
GEFBB1.5-28-[10-20/1]-[6-18/1]-W[0-20/1]
GEFBB1.5-30-[10-20/1]-[6-25/1]-W[0-20/1]
GEFBB1.5-35-[10-20/1]-[6-25/1]-W[0-20/1]
GEFBB1.5-36-[10-20/1]-[6-25/1]-W[0-20/1]
GEFBB1.5-40-[10-20/1]-[8-40/1]-W[0-20/1]
GEFBB1.5-48-[10-20/1]-[8-40/1]-W[0-20/1]
GEFBB1.5-50-[10-20/1]-[8-40/1]-W[0-20/1]
GEFBB1.5-60-[10-20/1]-[12-40/1]-W[0-20/1]
GEFBB1.5-70-[10-20/1]-[12-40/1]-W[0-20/1]
GEFBB1.5-80-[10-20/1]-[12-40/1]-W[0-20/1]
GEFBB2.0-15-[15-25/1]-[8-15/1]-W[0-25/1]
GEFBB2.0-16-[15-25/1]-[8-15/1]-W[0-25/1]
GEFBB2.0-18-[15-25/1]-[8-15/1]-W[0-25/1]
GEFBB2.0-20-[15-25/1]-[8-15/1]-W[0-25/1]
GEFBB2.0-24-[15-25/1]-[8-20/1]-W[0-25/1]
GEFBB2.0-25-[15-25/1]-[8-20/1]-W[0-25/1]
GEFBB2.0-26-[15-25/1]-[8-20/1]-W[0-25/1]
GEFBB2.0-30-[15-25/1]-[8-25/1]-W[0-25/1]
GEFBB2.0-32-[15-25/1]-[8-25/1]-W[0-25/1]
GEFBB2.0-36-[15-25/1]-[10-30/1]-W[0-25/1]
GEFBB2.0-40-[15-25/1]-[10-30/1]-W[0-25/1]
GEFBB2.0-48-[15-25/1]-[10-35/1]-W[0-25/1]
GEFBB2.0-50-[15-25/1]-[10-35/1]-W[0-25/1]
GEFBB2.0-52-[15-25/1]-[12-40/1]-W[0-25/1]
GEFBB2.0-60-[15-25/1]-[12-40/1]-W[0-25/1]
GEFBB2.5-18-[20-30/1]-[8-15/1]-W[0-30/1]
GEFBB2.5-20-[20-30/1]-[8-15/1]-W[0-30/1]
GEFBB2.5-25-[20-30/1]-[8-20/1]-W[0-30/1]
GEFBB2.5-28-[20-30/1]-[8-25/1]-W[0-30/1]
GEFBB2.5-36-[20-30/1]-[8-30/1]-W[0-30/1]
GEFBB2.5-40-[20-30/1]-[8-30/1]-W[0-30/1]
GEFBB2.5-50-[20-30/1]-[12-40/1]-W[0-30/1]
GEFBB3.0-12-[25-35/1]-[8-15/1]-W[0-35/1]
GEFBB3.0-15-[25-35/1]-[8-15/1]-W[0-35/1]
GEFBB3.0-18-[25-35/1]-[8-20/1]-W[0-35/1]
GEFBB3.0-20-[25-35/1]-[8-25/1]-W[0-35/1]
GEFBB3.0-30-[25-35/1]-[10-30/1]-W[0-35/1]
GEFBB3.0-36-[25-35/1]-[10-40/1]-W[0-35/1]
GEFBB3.0-40-[25-35/1]-[10-40/1]-W[0-35/1]
GEFBG0.5-20-[2-5/1]-[3-4/1]-W[0-10/1]
GEFBG0.5-24-[2-5/1]-[3-6/1]-W[0-10/1]
GEFBG0.5-25-[2-5/1]-[3-6/1]-W[0-10/1]
GEFBG0.5-26-[2-5/1]-[3-6/1]-W[0-10/1]
GEFBG0.5-30-[2-5/1]-[3-6/1]-W[0-10/1]
GEFBG0.5-32-[2-5/1]-[3-6/1]-W[0-10/1]
GEFBG0.5-36-[2-5/1]-[3-12/1]-W[0-10/1]
GEFBG0.5-40-[2-5/1]-[3-12/1]-W[0-10/1]
GEFBG0.5-48-[2-5/1]-[3-12/1]-W[0-10/1]
GEFBG0.5-50-[2-5/1]-[3-12/1]-W[0-10/1]
GEFBG0.5-60-[2-5/1]-[5-25/1]-W[0-10/1]
GEFBG0.5-70-[2-5/1]-[5-25/1]-W[0-10/1]
GEFBG0.5-80-[2-5/1]-[5-25/1]-W[0-10/1]
GEFBG0.5-100-[2-5/1]-[5-25/1]-W[0-10/1]
GEFBG0.8-15-[3-10/1]-[5,​6,​6.35]-W[0-10/1]
Part Number
Standard Unit Price
Minimum order quantityVolume Discount
Standard
Shipping Days
?
RoHSNumber of Teeth
(Teeth) 		Material (Details) Surface Treatment Shaft Bore Dia.
(Ø) 		Tooth Width B
(mm) 		Hole Shape Hub Width [W]
(mm)

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1 10 Days 1016General Steel MaterialBlack Oxide6 ～ 1210 ～ 20Round Hole + Tap0 ～ 20

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1 10 Days 1018General Steel MaterialBlack Oxide6 ～ 1210 ～ 20Round Hole + Tap0 ～ 20

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1 10 Days 1020General Steel MaterialBlack Oxide6 ～ 1210 ～ 20Round Hole + Tap0 ～ 20

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1 10 Days 1024General Steel MaterialBlack Oxide6 ～ 1810 ～ 20Round Hole + Tap0 ～ 20

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1 10 Days 1025General Steel MaterialBlack Oxide6 ～ 1810 ～ 20Round Hole + Tap0 ～ 20

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1 10 Days 1026General Steel MaterialBlack Oxide6 ～ 1810 ～ 20Round Hole + Tap0 ～ 20

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1 10 Days 1028General Steel MaterialBlack Oxide6 ～ 1810 ～ 20Round Hole + Tap0 ～ 20

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1 10 Days 1030General Steel MaterialBlack Oxide6 ～ 2510 ～ 20Round Hole + Tap0 ～ 20

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1 10 Days 1035General Steel MaterialBlack Oxide6 ～ 2510 ～ 20Round Hole + Tap0 ～ 20

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1 10 Days 1036General Steel MaterialBlack Oxide6 ～ 2510 ～ 20Round Hole + Tap0 ～ 20

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1 10 Days 1040General Steel MaterialBlack Oxide8 ～ 4010 ～ 20Round Hole + Tap0 ～ 20

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1 10 Days 1048General Steel MaterialBlack Oxide8 ～ 4010 ～ 20Round Hole + Tap0 ～ 20

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1 10 Days 1050General Steel MaterialBlack Oxide8 ～ 4010 ～ 20Round Hole + Tap0 ～ 20

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1 10 Days 1060General Steel MaterialBlack Oxide12 ～ 4010 ～ 20Round Hole + Tap0 ～ 20

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1 10 Days 1070General Steel MaterialBlack Oxide12 ～ 4010 ～ 20Round Hole + Tap0 ～ 20

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1 10 Days 1080General Steel MaterialBlack Oxide12 ～ 4010 ～ 20Round Hole + Tap0 ～ 20

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1 10 Days 1015General Steel MaterialBlack Oxide8 ～ 1515 ～ 25Round Hole + Tap0 ～ 25

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1 10 Days 1016General Steel MaterialBlack Oxide8 ～ 1515 ～ 25Round Hole + Tap0 ～ 25

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1 10 Days 1018General Steel MaterialBlack Oxide8 ～ 1515 ～ 25Round Hole + Tap0 ～ 25

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1 10 Days 1020General Steel MaterialBlack Oxide8 ～ 1515 ～ 25Round Hole + Tap0 ～ 25

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1 10 Days 1024General Steel MaterialBlack Oxide8 ～ 2015 ～ 25Round Hole + Tap0 ～ 25

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1 10 Days 1025General Steel MaterialBlack Oxide8 ～ 2015 ～ 25Round Hole + Tap0 ～ 25

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1 10 Days 1026General Steel MaterialBlack Oxide8 ～ 2015 ～ 25Round Hole + Tap0 ～ 25

-

1 10 Days 1030General Steel MaterialBlack Oxide8 ～ 2515 ～ 25Round Hole + Tap0 ～ 25

-

1 10 Days 1032General Steel MaterialBlack Oxide8 ～ 2515 ～ 25Round Hole + Tap0 ～ 25

-

1 10 Days 1036General Steel MaterialBlack Oxide10 ～ 3015 ～ 25Round Hole + Tap0 ～ 25

-

1 10 Days 1040General Steel MaterialBlack Oxide10 ～ 3015 ～ 25Round Hole + Tap0 ～ 25

-

1 10 Days 1048General Steel MaterialBlack Oxide10 ～ 3515 ～ 25Round Hole + Tap0 ～ 25

-

1 10 Days 1050General Steel MaterialBlack Oxide10 ～ 3515 ～ 25Round Hole + Tap0 ～ 25

-

1 10 Days 1052General Steel MaterialBlack Oxide12 ～ 4015 ～ 25Round Hole + Tap0 ～ 25

-

1 10 Days 1060General Steel MaterialBlack Oxide12 ～ 4015 ～ 25Round Hole + Tap0 ～ 25

-

1 10 Days 1018General Steel MaterialBlack Oxide8 ～ 1520 ～ 30Round Hole + Tap0 ～ 30

-

1 10 Days 1020General Steel MaterialBlack Oxide8 ～ 1520 ～ 30Round Hole + Tap0 ～ 30

-

1 10 Days 1025General Steel MaterialBlack Oxide8 ～ 2020 ～ 30Round Hole + Tap0 ～ 30

-

1 10 Days 1028General Steel MaterialBlack Oxide8 ～ 2520 ～ 30Round Hole + Tap0 ～ 30

-

1 10 Days 1036General Steel MaterialBlack Oxide8 ～ 3020 ～ 30Round Hole + Tap0 ～ 30

-

1 10 Days 1040General Steel MaterialBlack Oxide8 ～ 3020 ～ 30Round Hole + Tap0 ～ 30

-

1 10 Days 1050General Steel MaterialBlack Oxide12 ～ 4020 ～ 30Round Hole + Tap0 ～ 30

-

1 10 Days 1012General Steel MaterialBlack Oxide8 ～ 1525 ～ 35Round Hole + Tap0 ～ 35

-

1 10 Days 1015General Steel MaterialBlack Oxide8 ～ 1525 ～ 35Round Hole + Tap0 ～ 35

-

1 10 Days 1018General Steel MaterialBlack Oxide8 ～ 2025 ～ 35Round Hole + Tap0 ～ 35

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1 10 Days 1020General Steel MaterialBlack Oxide8 ～ 2525 ～ 35Round Hole + Tap0 ～ 35

-

1 10 Days 1030General Steel MaterialBlack Oxide10 ～ 3025 ～ 35Round Hole + Tap0 ～ 35

-

1 10 Days 1036General Steel MaterialBlack Oxide10 ～ 4025 ～ 35Round Hole + Tap0 ～ 35

-

1 10 Days 1040General Steel MaterialBlack Oxide10 ～ 4025 ～ 35Round Hole + Tap0 ～ 35

-

1 10 Days 1020General Steel MaterialElectroless Nickel Plating3 ～ 42 ～ 5Round Hole + Tap0 ～ 10

-

1 10 Days 1024General Steel MaterialElectroless Nickel Plating3 ～ 62 ～ 5Round Hole + Tap0 ～ 10

-

1 10 Days 1025General Steel MaterialElectroless Nickel Plating3 ～ 62 ～ 5Round Hole + Tap0 ～ 10

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1 10 Days 1026General Steel MaterialElectroless Nickel Plating3 ～ 62 ～ 5Round Hole + Tap0 ～ 10

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1 10 Days 1030General Steel MaterialElectroless Nickel Plating3 ～ 62 ～ 5Round Hole + Tap0 ～ 10

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1 10 Days 1032General Steel MaterialElectroless Nickel Plating3 ～ 62 ～ 5Round Hole + Tap0 ～ 10

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1 10 Days 1036General Steel MaterialElectroless Nickel Plating3 ～ 122 ～ 5Round Hole + Tap0 ～ 10

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1 10 Days 1040General Steel MaterialElectroless Nickel Plating3 ～ 122 ～ 5Round Hole + Tap0 ～ 10

-

1 10 Days 1048General Steel MaterialElectroless Nickel Plating3 ～ 122 ～ 5Round Hole + Tap0 ～ 10

-

1 10 Days 1050General Steel MaterialElectroless Nickel Plating3 ～ 122 ～ 5Round Hole + Tap0 ～ 10

-

1 10 Days 1060General Steel MaterialElectroless Nickel Plating5 ～ 252 ～ 5Round Hole + Tap0 ～ 10

-

1 10 Days 1070General Steel MaterialElectroless Nickel Plating5 ～ 252 ～ 5Round Hole + Tap0 ～ 10

-

1 10 Days 1080General Steel MaterialElectroless Nickel Plating5 ～ 252 ～ 5Round Hole + Tap0 ～ 10

-

1 10 Days 10100General Steel MaterialElectroless Nickel Plating5 ～ 252 ～ 5Round Hole + Tap0 ～ 10

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1 10 Days 1015General Steel MaterialElectroless Nickel Plating5 ～ 6.353 ～ 10Round Hole + Tap0 ～ 10

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Back to the Category Spur Gears

Technical Drawing - Spur Gears

Spur Gears/Tooth Width/Hub Dimension Configurable/Pressure Angle 20Deg.:Related Image
Open the technical drawing in the new window

Specification Tables - Spur Gears

■Module 0.5, 0.8, 1.0, 1.5
Part NumberNumber of TeethB
1mm Increment		Shaft Bore Dia. PH7 (1mm Increment)Hub 1mm Incrementd
Reference Dia.		D
Tip Dia.		G Root Dia.Unit Price
TypeModuleStraight Bore Straight Bore + TapKeyway + TapWHStraight BoreStraight Bore + TapKeyway + Tap
GEFHBGEFHBBGEFHBGGEFHBSGEFBGEFBBGEFBGGEFBSGEFKBGEFKBBGEFKBGGEFKBS
Straight Bore
GEFHB
GEFHBB
GEFHBG
GEFHBS

Straight Bore + Tap
GEFB
GEFBB
GEFBG
GEFBS

Keyway + Tap
GEFKB
GEFKBB
GEFKBG
GEFKBS		0.5 202~53 4 -0~10P+2≤H≤G-2
(Straight Bore)
P+4≤H≤G-2
(Straight Bore + Tap)		10118.75        ----
243~6121310.75        ----
2512.513.511.25        ----
26131411.75        ----
30151613.75        ----
32161714.75        ----
363~12181916.75        ----
40202118.75        ----
48242522.75        ----
50252623.75        ----
605~25303128.75   -   -----
70353633.75   -   -----
80404138.75   -   -----
100505148.75   -   -----
0.8153~105
6
6.35		-0~10P+2≤H≤G-2
(Straight Bore)
P+4≤H≤G-2
(Straight Bore + Tap)		1213.610        ----
1612.814.410.8        ----
1814.41612.4        ----
201617.614        ----
245~819.220.817.2        ----
252021.618        ----
2822.42420.4        ----
302425.622        ----
3225.627.223.6        ----
366~8
6.35		28.830.426.8        ----
403233.630        ----
453637.634        ----
4838.44036.4        ----
504041.638        ----
1.0 205~156~128N0~15P+4≤H≤G-3
(Straight Bore, Straight Bore + Tap)

P+6≤H≤G-3
(Keyway + Tap)		202217.5            
218N~10N212318.5            
22222419.5            
23232520.5            
24242621.5            
25252722.5            
266~188N~12N262823.5            
28283025.5            
30P+10≤H≤G-3
(Straight Bore, Straight Bore + Tap)

P+13≤H≤G-3
(Keyway + Tap)		303227.5            
32323429.5            
358~20353732.5            
368N~20N363833.5            
40404237.5            
488~35485045.5            
5010N~30N505247.5            
60606257.5            
7010~4012N~35N707267.5            
80808277.5            
10015~4015N~35N10010297.5            
120120122117.5            
1.51610~206~128N~12N0~20P+6≤H≤G-4242720.25            
18273023.25            
20303326.25            
246~188N~15N363932.25            
25P+13≤H≤G-4
(Straight Bore, Straight Bore + Tap)

P+15≤H≤G-4
(Keyway + Tap)		37.540.533.75            
26394235.25            
28424538.25            
306~258N~25N454841.25            
3552.555.548.75            
36545750.25            
408~408N~30N606356.25            
48727568.25            
50757871.25            
6012~4012N~35NP+15≤H≤G-4
(Straight Bore, Straight Bore + Tap)
P+20≤H≤G-4
(Keyway + Tap)		909386.25            
70105108101.25            
80120123116.25   -   -   -

■Module 2.0, 2.5, 3.0
Part NumberNumber of TeethB
1mm Increment		Shaft Bore Dia. PH7 (1mm Increment)Hub
1mm Increment		d
Reference Dia.		D
Tip Dia.		G Root Dia.Unit Price
TypeModuleStraight Bore Straight Bore + TapKeyway + TapWHStraight BoreStraight Bore + TapKeyway + Tap
GEFHBGEFHBBGEFHBGGEFHBSGEFBGEFBBGEFBGGEFBSGEFKBGEFKBBGEFKBGGEFKBS
Straight Bore
GEFHB
GEFHBB
GEFHBG
GEFHBS

Straight Bore + Tap
GEFB
GEFBB
GEFBG
GEFBS

Keyway + Tap
GEFKB
GEFKBB
GEFKBG
GEFKBS		2.0 1515~258~158N~12N0~25P+10≤H≤G-5
(Straight Bore, Straight Bore + Tap)

P+12≤H≤G-5
(Keyway + Tap)		303425            
16323627            
18364031            
20404435            
248~208N~17N485243            
25505445            
26525647            
308~258N~20N606455            
32646859            
3610~3010N~25NP+12≤H≤G-5
(Straight Bore, Straight Bore + Tap)

P+14≤H≤G-5
(Keyway + Tap)		727667            
40808475            
4810~3510N~30N9610091            
5010010495            
5212~4012N~35N10410899            
60120124115            
2.5 1820~308~158N~12N0~30P+10≤H≤G-6
(Straight Bore, Straight Bore + Tap)
P+12≤H≤G-6
(Keyway + Tap)		455038.75            
20505543.75            
258~208N~17N62.567.556.25            
288~258N~20N707563.75            
368~308N~25NP+12≤H≤G-6
(Straight Bore, Straight Bore + Tap)
P+14≤H≤G-6
(Keyway + Tap)		909583.75            
4010010593.75            
5012~4012N~35N125130118.75            
3.01225~358~158N~12N0~35P+10≤H≤G-7
(Straight Bore, Straight Bore + Tap)
P+12≤H≤G-7
(Keyway + Tap)		364228.5            
15455137.5            
188~208N~20N546046.5            
208~258N~25N606652.5            
3010~3010N~30NP+12≤H≤G-7
(Straight Bore, Straight Bore + Tap)
P+14≤H≤G-7
(Keyway + Tap)		909682.5            
3612~4012N~35N108114100.5            
40120126112.5            
Shaft bore diameter 9N is not available for Keyway Bore + Tap. When specifying "Straight Bore + Tap" and "Keyway + Tap," make sure that the hub length satisfies the condition of "(W)>M+3".
When the tooth width is smaller, the transmitting torque is smaller. Shaft bore diameter 6.35 is available for Straight Bore and Straight Bore + Tap.
Specify 10K as the P dimension if keyway width of 4.0mm (height 1.8mm) for Keyway + Tap with shaft bore diameter of 10 is desired >> P.1498
When requesting Shape A (no hub), specify W=0.
When W=0, specification for H is not required.
For WDH alterations, the H range requirements considered as Q and R = P must satisfy the condition of "Q＋○ ≤ H ≤ G - ○, R+ ○ ≤ H ≤ G - ○." (○: Refer to the value in the specification table)
For DHL/DHR alterations, the H range requirements considered as Z = P must satisfy the condition of "Z + ○ ≤ H ≤ G - ○." (○: Refer to the value in the specification table)

Alterations - Spur Gears

Spur Gears/Tooth Width/Hub Dimension Configurable/Pressure Angle 20Deg.:Related Image
 

Basic information

Shape Shape A / Shape B Ground Tooth Not Provided Backlash Provided
Precision(Old JIS) JIS B 1702 (Class 4)

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3,403Suggestion of an applicable part number.

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Basic Attributes

  • Number of Teeth(Teeth)

    • 12
    • 15
    • 16
    • 18
    • 20
    • 21
    • 22
    • 23
    • 24
    • 25
    • 26
    • 28
    • 30
    • 32
    • 35
    • 36
    • 40
    • 45
    • 48
    • 50
    • 52
    • 60
    • 70
    • 80
    • 100
    • 120

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  • Material (Details)

    • General Steel Material
    • Stainless Steel

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  • Surface Treatment

  • Shaft Bore Dia.(Ø)

    • 5
    • 6
    • 6.35
    • 7
    • 8
    • 9
    • 10
    • 11
    • 12
    • 13
    • 14
    • 15
    • 16
    • 17
    • 18
    • 19
    • 20
    • 21
    • 22
    • 23
    • 24
    • 25
    • 26
    • 27
    • 28
    • 29
    • 30
    • 31
    • 32
    • 33
    • 34
    • 35

     [3-40/1Ø Unit(s)]

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  • Tooth Width B(mm)

     [2-35/1mm Unit(s)]

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  • Hole Shape

    • Keyway Hole + Tap
    • Round Hole
    • Round Hole + Tap

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  • Hub Width [W](mm)

  • Type

    • GEFB
    • GEFBB
    • GEFBG
    • GEFBS
    • GEFHB
    • GEFHBB
    • GEFHBG
    • GEFHBS
    • GEFKB
    • GEFKBB
    • GEFKBG
    • GEFKBS

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  • Filter by CAD data type

    • 2D
    • 3D

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Filter by standard shipping days

    • All
    • 10 Days or Less

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Optional Attributes

Frequently Asked Questions (FAQ)

Question:

Can different modules be combined with each other?
Answer:

Since the module describes the division of the teeth along the pitch circle diameter, various modules cannot be combined into one pair of gears.
Question:

What is involute gearing?
Answer:

Evolved gearing is understood to be the convex production of a tooth flank. The sliding friction along the tooth flank can thus be minimized. This also reduces wear and tear.
Question:

What is the pressure angle?
Answer:

The pressure angle is defined as the angle of the highest drive force between two gears. A combination of different pressure angles is not recommended, since increased wear is to be expected.
Question:

Is the position of the keyway to the key-type specified?
Answer:

The keyway has no specified position reference to the tooth base or the head surface of the sprocket.
Question:

What is the reverse clearance?
Answer:

The reverse play arises at the moment of the direction of rotation of a spur gear pairing is changed. It describes the gap between the gear flanks of each tooth in engagement.

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