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Straight gears / ductively hardened / contact angle 20 degrees (Part Numbers - CAD Download)

Straight gears / ductively hardened / contact angle 20 degrees
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Back to the Category Spur Gears

Technical Drawing - Spur Gears

Spur Gears/Induction Hardened/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 Hardness Accessory
Straight BoreStraight Bore + TapKeyway, Keyway + Tap
GEAHBHGEABHGEAKBHEN 1.1191 Equiv.Black OxideTooth Induction Hardened
51 ~ 55HRC (Depth 1mm or more)		Set Screw
(EN 1.7220 Equiv. Black Oxide)
Set Screw is not included in Un-tapped Type products.

Further specifications can be found under the tab More Information.

Composition of a Product Code - Spur Gears

Part Number-Number
of Teeth		-B-Gear Shape-P
GEAKBH2.0
GEABH1.0		-
-		30
30		-
-		20
8		-
-		A
B		-
-		25N
15

Alterations - Spur Gears

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
GEAHBH2.0-48-20-B-[20-42/1]
GEAHBH2.0-50-20-A-[25-42/1]
GEAHBH2.0-50-20-B-[25-42/1]
GEAHBH2.0-60-20-A-[25-45/1]
GEAHBH2.0-60-20-B-[25-45/1]
GEAHBH2.5-16-25-A-[15-22/1]
GEAHBH2.5-16-25-B-[15-22/1]
GEAHBH2.5-20-25-A-[18-28/1]
GEAHBH2.5-20-25-B-[18-28/1]
GEAHBH2.5-24-25-A-[18-33/1]
GEAHBH2.5-24-25-B-[18-33/1]
GEAHBH2.5-25-25-A-[20-35/1]
GEAHBH2.5-25-25-B-[20-35/1]
GEAHBH2.5-28-25-A-[20-42/1]
GEAHBH2.5-28-25-B-[20-42/1]
GEAHBH2.5-30-25-A-[20-45/1]
GEAHBH2.5-30-25-B-[20-45/1]
GEAHBH2.5-36-25-A-[20-49/1]
GEAHBH2.5-36-25-B-[20-49/1]
GEAHBH2.5-40-25-A-[25-49/1]
GEAHBH2.5-40-25-B-[25-49/1]
GEAHBH2.5-45-25-A-[25-52/1]
GEAHBH2.5-45-25-B-[25-52/1]
GEAHBH2.5-48-25-A-[25-52/1]
GEAHBH2.5-48-25-B-[25-52/1]
GEAHBH2.5-50-25-A-[25-56/1]
GEAHBH2.5-50-25-B-[25-56/1]
GEAHBH3.0-16-30-A-[16-26/1]
GEAHBH3.0-16-30-B-[16-26/1]
GEAHBH3.0-20-30-A-[20-35/1]
GEAHBH3.0-20-30-B-[20-35/1]
GEAHBH3.0-24-30-A-[20-40/1]
GEAHBH3.0-24-30-B-[20-40/1]
GEAHBH3.0-25-30-A-[20-42/1]
GEAHBH3.0-25-30-B-[20-42/1]
GEAHBH3.0-30-30-A-[25-52/1]
GEAHBH3.0-30-30-B-[25-52/1]
GEAHBH3.0-32-30-A-[25-52/1]
GEAHBH3.0-32-30-B-[25-52/1]
GEAHBH3.0-36-30-A-[25-56/1]
GEAHBH3.0-36-30-B-[25-56/1]
GEAHBH3.0-40-30-A-[25-56/1]
GEAHBH3.0-40-30-B-[25-56/1]
GEAKBH1.0-20-8-A-8N
GEAKBH1.0-20-8-A-10K
GEAKBH1.0-20-8-A-10N
GEAKBH1.0-20-8-B-8N
GEAKBH1.0-20-8-B-10K
GEAKBH1.0-20-8-B-10N
GEAKBH1.0-22-8-A-8N
GEAKBH1.0-22-8-A-9N
GEAKBH1.0-22-8-A-10K
GEAKBH1.0-22-8-A-10N
GEAKBH1.0-22-8-A-11N
GEAKBH1.0-22-8-A-12N
GEAKBH1.0-22-8-A-13N
GEAKBH1.0-22-8-A-14N
GEAKBH1.0-22-8-B-8N
GEAKBH1.0-22-8-B-9N
GEAKBH1.0-22-8-B-10K
Part Number
Standard Unit Price
Minimum order quantityVolume Discount
Standard
Shipping Days
?
RoHSNumber of Teeth
(Teeth) 		Shape Shaft Bore Dia.
(Ø) 		Tooth Width B
(mm) 		Hole Shape

-

1 12 Days 1048Shape B20 ～ 4220Round Hole

-

1 12 Days 1050Shape A25 ～ 4220Round Hole

-

1 12 Days 1050Shape B25 ～ 4220Round Hole

-

1 12 Days 1060Shape A25 ～ 4520Round Hole

-

1 12 Days 1060Shape B25 ～ 4520Round Hole

-

1 12 Days 1016Shape A15 ～ 2225Round Hole

-

1 12 Days 1016Shape B15 ～ 2225Round Hole

-

1 12 Days 1020Shape A18 ～ 2825Round Hole

-

1 12 Days 1020Shape B18 ～ 2825Round Hole

-

1 12 Days 1024Shape A18 ～ 3325Round Hole

-

1 12 Days 1024Shape B18 ～ 3325Round Hole

-

1 12 Days 1025Shape A20 ～ 3525Round Hole

-

1 12 Days 1025Shape B20 ～ 3525Round Hole

-

1 12 Days 1028Shape A20 ～ 4225Round Hole

-

1 12 Days 1028Shape B20 ～ 4225Round Hole

-

1 12 Days 1030Shape A20 ～ 4525Round Hole

-

1 12 Days 1030Shape B20 ～ 4525Round Hole

-

1 12 Days 1036Shape A20 ～ 4925Round Hole

-

1 12 Days 1036Shape B20 ～ 4925Round Hole

-

1 12 Days 1040Shape A25 ～ 4925Round Hole

-

1 12 Days 1040Shape B25 ～ 4925Round Hole

-

1 12 Days 1045Shape A25 ～ 5225Round Hole

-

1 12 Days 1045Shape B25 ～ 5225Round Hole

-

1 12 Days 1048Shape A25 ～ 5225Round Hole

-

1 12 Days 1048Shape B25 ～ 5225Round Hole

-

1 12 Days 1050Shape A25 ～ 5625Round Hole

-

1 12 Days 1050Shape B25 ～ 5625Round Hole

-

1 12 Days 1016Shape A16 ～ 2630Round Hole

-

1 12 Days 1016Shape B16 ～ 2630Round Hole

-

1 12 Days 1020Shape A20 ～ 3530Round Hole

-

1 12 Days 1020Shape B20 ～ 3530Round Hole

-

1 12 Days 1024Shape A20 ～ 4030Round Hole

-

1 12 Days 1024Shape B20 ～ 4030Round Hole

-

1 12 Days 1025Shape A20 ～ 4230Round Hole

-

1 12 Days 1025Shape B20 ～ 4230Round Hole

-

1 12 Days 1030Shape A25 ～ 5230Round Hole

-

1 12 Days 1030Shape B25 ～ 5230Round Hole

-

1 12 Days 1032Shape A25 ～ 5230Round Hole

-

1 12 Days 1032Shape B25 ～ 5230Round Hole

-

1 12 Days 1036Shape A25 ～ 5630Round Hole

-

1 12 Days 1036Shape B25 ～ 5630Round Hole

-

1 12 Days 1040Shape A25 ～ 5630Round Hole

-

1 12 Days 1040Shape B25 ～ 5630Round Hole

-

1 12 Days 1020Shape A88Keyway

-

1 12 Days 1020Shape A108Keyway

-

1 12 Days 1020Shape A108Keyway

-

1 12 Days 1020Shape B88Keyway Hole + Tap

-

1 12 Days 1020Shape B108Keyway Hole + Tap

-

1 12 Days 1020Shape B108Keyway Hole + Tap

-

1 12 Days 1022Shape A88Keyway

-

1 12 Days 1022Shape A98Keyway

-

1 12 Days 1022Shape A108Keyway

-

1 12 Days 1022Shape A108Keyway

-

1 12 Days 1022Shape A118Keyway

-

1 12 Days 1022Shape A128Keyway

-

1 12 Days 1022Shape A138Keyway

-

1 12 Days 1022Shape A148Keyway

-

1 12 Days 1022Shape B88Keyway Hole + Tap

-

1 12 Days 1022Shape B98Keyway Hole + Tap

-

1 12 Days 1022Shape B108Keyway Hole + Tap

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Back to the Category Spur Gears

Technical Drawing - Spur Gears

Spur Gears/Induction Hardened/Pressure Angle 20Deg.:Related Image
Open the technical drawing in the new window

Specification Tables - Spur Gears

Part NumberNumber of TeethBGear ShapeShaft Hole Dia PH7 (1mm Increment)d Reference Dia.D Tip Dia.G Root Dia.HLℓ1ℓ2*1. Allowable Transmission Force
(N, m)
Bending Strength		Unit Price 1 ~ 10 pc(s).
TypeModuleStraight Bore Straight Bore + TapKeyway
Keyway + Tap
Straight BoreStraight Bore + TapKeyway
Keyway + Tap
GEAHBHGEABHGEAKBH
Straight Bore
(Shape A, Shape B)
GEAHBH

Straight Bore + Tap
(Shape B)
GEABH

Keyway
(Shape A)
Keyway + Tap
(Shape B)
GEAKBH		1.0 188A

B		6~10-182015.515181054.76  -
206~118N, 10N202217.5175.57   
228~148N~12N222419.5186.42   
24242621.5207.27   
25252722.57.69   
26262823.58.12   
28283025.59.02   
3010~1710N~15N303227.5259.87   
32323429.510.79   
35353732.512.13   
36363833.512.52   
4010~2110N~18N404237.53013.07   
45454742.515.18   
48485045.516.44   
5012~2412N~18N505247.53517.23   
6012~2812N~25N606257.54021.50   
70707267.525.74   
8015~3515N~30N808277.55029.98   
10010010297.538.72   
1.5151510~1210N22.525.518.75182914715.11   
1610~1310N, 11N242720.2519.516.74   
1810~1510N~13N273023.252220.08   
2010~1610N~14N303326.252423.51   
2412~1912N~17N363932.252830.56   
2512~2112N~18N37.540.533.753032.39   
2612~2212N~19N394235.253231.16   
2815~2515N~19N424538.253634.58   
3015~2615N~23N454841.253837.84   
3215~2815N~24N485144.254041.03   
3515~2915N~26N52.555.548.754246.51   
3615~3115N~28N545750.254548.00   
4015~3515N~31N606356.255054.90   
4518~3518N~31N67.570.563.7563.90   
48727568.2569.20   
5018~4218N~38N757871.256072.69   
6020~4220N~38N909386.2590.68   
70105108101.25108.59   
Shaft bore diameter 6.35 is available for Straight Bore and Straight Bore + Tap. Shaft bore diameter 9N is not available for Keyway Bore + Tap.
Specify 10K as P dimension if keyway width of 4.0mm (height 1.8mm) for Keyway + Tap with shaft bore diameter of 10 is desired. >> P.1498
*1 Allowable Transmission Forces in the table are reference values calculated with prescribed conditions. For conditions, see >> P. 1498.
For orders larger than indicated quantity, please request a quotation.

■Module 2.0, 2.5, 3.0
Part NumberNumber of TeethBGear ShapeShaft Hole Dia PH7 (1mm Increment)d Reference Dia.D Tip Dia.G Root Dia.HLℓ1ℓ2*1. Allowable Transmission Force
(N • m)
Bending Strength		Unit Price 1 ~ 30 pc(s).
TypeModuleStraight Bore Straight Bore + TapKeyway
Keyway + Tap
Straight BoreStraight Bore + TapKeyway
Keyway + Tap
GEAHBHGEABHGEAKBH
Straight Bore
(Shape A, Shape B)
GEAHBH

Straight Bore + Tap
(Shape B)
GEABH

Keyway
(Shape A)
Keyway + Tap
(Shape B)
GEAKBH		2.0 1520A

B		12~1712N~14N303425243616835.81   
1612~1812N~15N3236272639.67   
1812~2112N~18N3640313047.59   
2015~2215N~19N4044353250.67   
224448393658.24   
2415~2615N~23N4852433865.86   
2515~2815N~24N5054454069.81   
2815~3115N~28N5660514581.96   
3018~3518N~31N6064555089.70   
3264685997.27   
36727667113.78   
4020~4220N~38N80847560130.13   
45909485151.46   
489610091164.04   
5025~4225N~38N10010495172.31   
6025~4525N~42N12012411565205.60   
2.5 162515~2215N~19N404533.75324318970.43   
2018~2818N~24N505543.754098.97   
2418~3318N~30N606553.7548128.63   
2520~3520N~31N62.567.556.2550136.34   
2820~4220N~38N707563.7560160.07   
3020~4520N~42N758068.7565175.19   
3620~4920N~45N909583.7570222.23   
4025~4925N~45N10010593.75254.16   
4525~5225N~49N112.5117.5106.2575295.82   
48120125113.75306.46   
5025~5625N~50N125130118.7580321.92   
3.0 163016~2616N~23N485440.538502010121.71   
2020~3520N~31N606652.550171.01   
2420~4020N~37N727864.558222.27   
2520~4220N~38N758167.560235.60   
3025~5225N~49N909682.575302.72   
329610288.5328.27   
3625~5625N~50N108114100.580384.01   
40120126112.5420.10   
*1 Allowable Transmission Forces in the table are reference values calculated with prescribed conditions. For conditions, see >> P. 1498.
For orders larger than indicated quantity, please request a quotation.
8~17363833.55M57.514.29            
*38384035.58.08-   -   -   -
40404237.5288.594.90            
42424439.59.145.22            
*44444641.59.71-   -   -   -
*45454742.510.00-   -   -   -
*468~208N~17N464843.53010.29-   -   -   -
488~258N~24N485045.54010.836.18            
50505247.511.376.49            
*5210N~24N525449.511.92-   -   -   -
54545651.512.487.12            
55555752.512.797.30            
56565853.513.107.48            
58586055.513.617.77            
608~3010N~27N606257.54414.198.10            
6210~3012N~27N626459.514.708.39            
64646661.515.288.72            
65656762.515.548.87            
66666863.515.879.06            
68687065.516.479.40            
7010~3512N~30N707267.54816.999.69            
72727469.517.519.99            
75757772.518.3810.49            
8010~3512N~31N808277.55019.7911.29            
8415~3515N~31N848681.520.9411.95            
85858782.521.2112.10            
90909287.522.6412.92            
95959792.524.0913.75            
96969893.524.3613.90            
10010010297.525.5614.58            
110110112107.528.2716.13            
12015N~34N120122117.55431.1217.76            
* marked number of teeth is not available for stainless steel type (GEAHS, GEAS and GEAKS).
Shaft bore diameter 9N is not available for Keyway 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
Shaft bore diameter 6.35 is available for Straight Bore and Straight Bore + Tap.
*1 Allowable Transmission Forces in the table are reference values calculated with prescribed conditions. For conditions, see >> P. 1498.
Tooth width is calculated as 6mm.

Alterations - Spur Gears

 

Basic information

Material (Details) General Steel Material Surface Treatment Black Oxide Ground Tooth Provided
Backlash Provided Precision(Old JIS) JIS B 1702 (Class 2)

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Basic Attributes

  • Number of Teeth(Teeth)

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

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  • Shape

    • Shape A
    • Shape B

    Clear

  • Shaft Bore Dia.(Ø)

    • 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
    • 36
    • 37
    • 38
    • 39
    • 40
    • 41
    • 42
    • 43
    • 44
    • 45
    • 46
    • 47
    • 48
    • 49
    • 50

     [6-56/1Ø Unit(s)]

    Clear

  • Tooth Width B(mm)

    • 8
    • 15
    • 20
    • 25
    • 30

    Clear

  • Hole Shape

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

    Clear

  • Type

    • GEABH
    • GEAHBH
    • GEAKBH

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    • 3D

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    • 12 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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