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

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Back to the Category Spur Gears

Technical Drawing - Spur Gears

Spur Gears/Induction Hardened/Pressure Angle 20Deg.:Related Image

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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 Bore	Straight Bore + Tap	Keyway, Keyway + Tap
GEAHBH	GEABH	GEAKBH	EN 1.1191 Equiv.	Black Oxide	Tooth 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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Data to be displayed: 30; 45; 60

Part Number
GEAKBH1.0-45-8-A-10K
GEAKBH1.0-45-8-A-10N
GEAKBH1.0-45-8-A-11N
GEAKBH1.0-45-8-A-12N
GEAKBH1.0-45-8-A-13N
GEAKBH1.0-45-8-A-14N
GEAKBH1.0-45-8-A-15N
GEAKBH1.0-45-8-A-16N
GEAKBH1.0-45-8-A-17N
GEAKBH1.0-45-8-A-18N
GEAKBH1.0-45-8-B-10K
GEAKBH1.0-45-8-B-10N
GEAKBH1.0-45-8-B-11N
GEAKBH1.0-45-8-B-12N
GEAKBH1.0-45-8-B-13N
GEAKBH1.0-45-8-B-14N
GEAKBH1.0-45-8-B-15N
GEAKBH1.0-45-8-B-16N
GEAKBH1.0-45-8-B-17N
GEAKBH1.0-45-8-B-18N
GEAKBH1.0-48-8-A-10K
GEAKBH1.0-48-8-A-10N
GEAKBH1.0-48-8-A-11N
GEAKBH1.0-48-8-A-12N
GEAKBH1.0-48-8-A-13N
GEAKBH1.0-48-8-A-14N
GEAKBH1.0-48-8-A-15N
GEAKBH1.0-48-8-A-16N
GEAKBH1.0-48-8-A-17N
GEAKBH1.0-48-8-A-18N
GEAKBH1.0-48-8-B-10K
GEAKBH1.0-48-8-B-10N
GEAKBH1.0-48-8-B-11N
GEAKBH1.0-48-8-B-12N
GEAKBH1.0-48-8-B-13N
GEAKBH1.0-48-8-B-14N
GEAKBH1.0-48-8-B-15N
GEAKBH1.0-48-8-B-16N
GEAKBH1.0-48-8-B-17N
GEAKBH1.0-48-8-B-18N
GEAKBH1.0-50-8-A-[12N,13N,14N,15N,16N,17N,18N]
GEAKBH1.0-50-8-B-[12N,13N,14N,15N,16N,17N,18N]
GEAKBH1.0-60-8-A-[12N,13N,14N,15N,16N,17N,18N,19N,20N,21N,22N,23N,24N,25N]
GEAKBH1.0-60-8-B-[12N,13N,14N,15N,16N,17N,18N,19N,20N,21N,22N,23N,24N,25N]
GEAKBH1.0-70-8-A-[12N,13N,14N,15N,16N,17N,18N,19N,20N,21N,22N,23N,24N,25N]
GEAKBH1.0-70-8-B-[12N,13N,14N,15N,16N,17N,18N,19N,20N,21N,22N,23N,24N,25N]
GEAKBH1.0-80-8-A-[12N,13N,14N,15N,16N,17N,18N,19N,20N,21N,22N,23N,24N,25N,26N,27N,28N,29N,30N]
GEAKBH1.0-80-8-B-[12N,13N,14N,15N,16N,17N,18N,19N,20N,21N,22N,23N,24N,25N,26N,27N,28N,29N,30N]
GEAKBH1.0-100-8-A-[12N,13N,14N,15N,16N,17N,18N,19N,20N,21N,22N,23N,24N,25N,26N,27N,28N,29N,30N]
GEAKBH1.0-100-8-B-[12N,13N,14N,15N,16N,17N,18N,19N,20N,21N,22N,23N,24N,25N,26N,27N,28N,29N,30N]
GEAKBH1.5-15-15-A-10K
GEAKBH1.5-15-15-A-10N
GEAKBH1.5-15-15-B-10K
GEAKBH1.5-15-15-B-10N
GEAKBH1.5-16-15-A-10K
GEAKBH1.5-16-15-A-10N
GEAKBH1.5-16-15-A-11N
GEAKBH1.5-16-15-B-10K
GEAKBH1.5-16-15-B-10N
GEAKBH1.5-16-15-B-11N

Standard Unit Price	Minimum order quantity	Standard Shipping Days ?	RoHS	Number of Teeth (Teeth)	Shape	Shaft Bore Dia. (Ø)	Tooth Width B (mm)	Hole Shape
-	1	12 Days	10	45	Shape A	10	8	Keyway
-	1	12 Days	10	45	Shape A	10	8	Keyway
-	1	12 Days	10	45	Shape A	11	8	Keyway
-	1	12 Days	10	45	Shape A	12	8	Keyway
-	1	12 Days	10	45	Shape A	13	8	Keyway
-	1	12 Days	10	45	Shape A	14	8	Keyway
-	1	12 Days	10	45	Shape A	15	8	Keyway
-	1	12 Days	10	45	Shape A	16	8	Keyway
-	1	12 Days	10	45	Shape A	17	8	Keyway
-	1	12 Days	10	45	Shape A	18	8	Keyway
-	1	12 Days	10	45	Shape B	10	8	Keyway Hole + Tap
-	1	12 Days	10	45	Shape B	10	8	Keyway Hole + Tap
-	1	12 Days	10	45	Shape B	11	8	Keyway Hole + Tap
-	1	12 Days	10	45	Shape B	12	8	Keyway Hole + Tap
-	1	12 Days	10	45	Shape B	13	8	Keyway Hole + Tap
-	1	12 Days	10	45	Shape B	14	8	Keyway Hole + Tap
-	1	12 Days	10	45	Shape B	15	8	Keyway Hole + Tap
-	1	12 Days	10	45	Shape B	16	8	Keyway Hole + Tap
-	1	12 Days	10	45	Shape B	17	8	Keyway Hole + Tap
-	1	12 Days	10	45	Shape B	18	8	Keyway Hole + Tap
-	1	12 Days	10	48	Shape A	10	8	Keyway
-	1	12 Days	10	48	Shape A	10	8	Keyway
-	1	12 Days	10	48	Shape A	11	8	Keyway
-	1	12 Days	10	48	Shape A	12	8	Keyway
-	1	12 Days	10	48	Shape A	13	8	Keyway
-	1	12 Days	10	48	Shape A	14	8	Keyway
-	1	12 Days	10	48	Shape A	15	8	Keyway
-	1	12 Days	10	48	Shape A	16	8	Keyway
-	1	12 Days	10	48	Shape A	17	8	Keyway
-	1	12 Days	10	48	Shape A	18	8	Keyway
-	1	12 Days	10	48	Shape B	10	8	Keyway Hole + Tap
-	1	12 Days	10	48	Shape B	10	8	Keyway Hole + Tap
-	1	12 Days	10	48	Shape B	11	8	Keyway Hole + Tap
-	1	12 Days	10	48	Shape B	12	8	Keyway Hole + Tap
-	1	12 Days	10	48	Shape B	13	8	Keyway Hole + Tap
-	1	12 Days	10	48	Shape B	14	8	Keyway Hole + Tap
-	1	12 Days	10	48	Shape B	15	8	Keyway Hole + Tap
-	1	12 Days	10	48	Shape B	16	8	Keyway Hole + Tap
-	1	12 Days	10	48	Shape B	17	8	Keyway Hole + Tap
-	1	12 Days	10	48	Shape B	18	8	Keyway Hole + Tap
-	1	12 Days	10	50	Shape A	12 ～ 18	8	Keyway
-	1	12 Days	10	50	Shape B	12 ～ 18	8	Keyway Hole + Tap
-	1	12 Days	10	60	Shape A	12 ～ 25	8	Keyway
-	1	12 Days	10	60	Shape B	12 ～ 25	8	Keyway Hole + Tap
-	1	12 Days	10	70	Shape A	12 ～ 25	8	Keyway
-	1	12 Days	10	70	Shape B	12 ～ 25	8	Keyway Hole + Tap
-	1	12 Days	10	80	Shape A	12 ～ 30	8	Keyway
-	1	12 Days	10	80	Shape B	12 ～ 30	8	Keyway Hole + Tap
-	1	12 Days	10	100	Shape A	12 ～ 30	8	Keyway
-	1	12 Days	10	100	Shape B	12 ～ 30	8	Keyway Hole + Tap
-	1	12 Days	10	15	Shape A	10	15	Keyway
-	1	12 Days	10	15	Shape A	10	15	Keyway
-	1	12 Days	10	15	Shape B	10	15	Keyway Hole + Tap
-	1	12 Days	10	15	Shape B	10	15	Keyway Hole + Tap
-	1	12 Days	10	16	Shape A	10	15	Keyway
-	1	12 Days	10	16	Shape A	10	15	Keyway
-	1	12 Days	10	16	Shape A	11	15	Keyway
-	1	12 Days	10	16	Shape B	10	15	Keyway Hole + Tap
-	1	12 Days	10	16	Shape B	10	15	Keyway Hole + Tap
-	1	12 Days	10	16	Shape B	11	15	Keyway Hole + Tap

Back to the Category Spur Gears

Technical Drawing - Spur Gears

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Specification Tables - Spur Gears

Part Number		Number of Teeth	B	Gear Shape	Shaft Hole Dia P_H7 (1mm Increment)		d Reference Dia.	D Tip Dia.	G Root Dia.	H	L	ℓ₁	ℓ₂	*1. Allowable Transmission Force (N, m) Bending Strength	Unit Price 1 ~ 10 pc(s).
Type	Module				Straight Bore Straight Bore + Tap	Keyway Keyway + Tap									Unit Price 1 ~ 10 pc(s).
															Straight Bore	Straight Bore + Tap	Keyway Keyway + Tap
															GEAHBH	GEABH	GEAKBH
Straight Bore (Shape A, Shape B) GEAHBH Straight Bore + Tap (Shape B) GEABH Keyway (Shape A) Keyway + Tap (Shape B) GEAKBH	1.0	18	8	A B	6~10	-	18	20	15.5	15	18	10	5	4.76			-
		20			6~11	8N, 10N	20	22	17.5	17				5.57
		22			8~14	8N~12N	22	24	19.5	18				6.42
		24					24	26	21.5	20				7.27
		25					25	27	22.5					7.69
		26					26	28	23.5					8.12
		28					28	30	25.5					9.02
		30			10~17	10N~15N	30	32	27.5	25				9.87
		32					32	34	29.5					10.79
		35					35	37	32.5					12.13
		36					36	38	33.5					12.52
		40			10~21	10N~18N	40	42	37.5	30				13.07
		45					45	47	42.5					15.18
		48					48	50	45.5					16.44
		50			12~24	12N~18N	50	52	47.5	35				17.23
		60			12~28	12N~25N	60	62	57.5	40				21.50
		70			12~28	12N~25N	70	72	67.5	40				25.74
		80			15~35	15N~30N	80	82	77.5	50				29.98
		100			15~35	15N~30N	100	102	97.5	50				38.72
	1.5	15	15		10~12	10N	22.5	25.5	18.75	18	29	14	7	15.11
		16			10~13	10N, 11N	24	27	20.25	19.5				16.74
		18			10~15	10N~13N	27	30	23.25	22				20.08
		20			10~16	10N~14N	30	33	26.25	24				23.51
		24			12~19	12N~17N	36	39	32.25	28				30.56
		25			12~21	12N~18N	37.5	40.5	33.75	30				32.39
		26			12~22	12N~19N	39	42	35.25	32				31.16
		28			15~25	15N~19N	42	45	38.25	36				34.58
		30			15~26	15N~23N	45	48	41.25	38				37.84
		32			15~28	15N~24N	48	51	44.25	40				41.03
		35			15~29	15N~26N	52.5	55.5	48.75	42				46.51
		36			15~31	15N~28N	54	57	50.25	45				48.00
		40			15~35	15N~31N	60	63	56.25	50				54.90
		45			18~35	18N~31N	67.5	70.5	63.75					63.90
		48			18~35	18N~31N	72	75	68.25					69.20
		50			18~42	18N~38N	75	78	71.25	60				72.69
		60			20~42	20N~38N	90	93	86.25					90.68
		70			20~42	20N~38N	105	108	101.25					108.59

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 Number		Number of Teeth	B	Gear Shape	Shaft Hole Dia P_H7 (1mm Increment)		d Reference Dia.	D Tip Dia.	G Root Dia.	H	L	ℓ₁	ℓ₂	*1. Allowable Transmission Force (N • m) Bending Strength	Unit Price 1 ~ 30 pc(s).
Type	Module				Straight Bore Straight Bore + Tap	Keyway Keyway + Tap									Unit Price 1 ~ 30 pc(s).
															Straight Bore	Straight Bore + Tap	Keyway Keyway + Tap
															GEAHBH	GEABH	GEAKBH
Straight Bore (Shape A, Shape B) GEAHBH Straight Bore + Tap (Shape B) GEABH Keyway (Shape A) Keyway + Tap (Shape B) GEAKBH	2.0	15	20	A B	12~17	12N~14N	30	34	25	24	36	16	8	35.81
		16			12~18	12N~15N	32	36	27	26				39.67
		18			12~21	12N~18N	36	40	31	30				47.59
		20			15~22	15N~19N	40	44	35	32				50.67
		22			15~22	15N~19N	44	48	39	36				58.24
		24			15~26	15N~23N	48	52	43	38				65.86
		25			15~28	15N~24N	50	54	45	40				69.81
		28			15~31	15N~28N	56	60	51	45				81.96
		30			18~35	18N~31N	60	64	55	50				89.70
		32					64	68	59					97.27
		36					72	76	67					113.78
		40			20~42	20N~38N	80	84	75	60				130.13
		45					90	94	85					151.46
		48					96	100	91					164.04
		50			25~42	25N~38N	100	104	95					172.31
		60			25~45	25N~42N	120	124	115	65				205.60
	2.5	16	25		15~22	15N~19N	40	45	33.75	32	43	18	9	70.43
		20			18~28	18N~24N	50	55	43.75	40				98.97
		24			18~33	18N~30N	60	65	53.75	48				128.63
		25			20~35	20N~31N	62.5	67.5	56.25	50				136.34
		28			20~42	20N~38N	70	75	63.75	60				160.07
		30			20~45	20N~42N	75	80	68.75	65				175.19
		36			20~49	20N~45N	90	95	83.75	70				222.23
		40			25~49	25N~45N	100	105	93.75	70				254.16
		45			25~52	25N~49N	112.5	117.5	106.25	75				295.82
		48			25~52	25N~49N	120	125	113.75	75				306.46
		50			25~56	25N~50N	125	130	118.75	80				321.92
	3.0	16	30		16~26	16N~23N	48	54	40.5	38	50	20	10	121.71
		20			20~35	20N~31N	60	66	52.5	50				171.01
		24			20~40	20N~37N	72	78	64.5	58				222.27
		25			20~42	20N~38N	75	81	67.5	60				235.60
		30			25~52	25N~49N	90	96	82.5	75				302.72
		32			25~52	25N~49N	96	102	88.5	75				328.27
		36			25~56	25N~50N	108	114	100.5	80				384.01
		40			25~56	25N~50N	120	126	112.5	80				420.10

*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.

8~17	36	38	33.5	5	M5	7.51	4.29
	*38	38	40			35.5	8.08	-			-			-			-
	40	40	42			37.5	28	8.59	4.90
	42	42	44			39.5		9.14	5.22
	*44	44	46			41.5		9.71	-			-			-			-
	*45	45	47			42.5		10.00	-			-			-			-
*46	8~20	8N~17N	46			48	43.5	30	10.29	-			-			-			-
48	8~25	8N~24N	48			50	45.5	40	10.83	6.18
50		8N~24N	50			52	47.5		11.37	6.49
*52		10N~24N	52			54	49.5		11.92	-			-			-			-
54			54			56	51.5		12.48	7.12
55			55			57	52.5		12.79	7.30
56			56			58	53.5		13.10	7.48
58			58			60	55.5		13.61	7.77
60	8~30	10N~27N	60			62	57.5	44	14.19	8.10
62	10~30	12N~27N	62			64	59.5		14.70	8.39
64			64			66	61.5		15.28	8.72
65			65			67	62.5		15.54	8.87
66			66			68	63.5		15.87	9.06
68			68			70	65.5		16.47	9.40
70	10~35	12N~30N	70			72	67.5	48	16.99	9.69
72			72			74	69.5		17.51	9.99
75			75			77	72.5		18.38	10.49
80	10~35	12N~31N	80			82	77.5	50	19.79	11.29
84	15~35	15N~31N	84			86	81.5		20.94	11.95
85			85			87	82.5		21.21	12.10
90			90			92	87.5		22.64	12.92
95			95			97	92.5		24.09	13.75
96			96			98	93.5		24.36	13.90
100			100			102	97.5		25.56	14.58
110			110			112	107.5		28.27	16.13
120		15N~34N	120			122	117.5	54	31.12	17.76

* 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

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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
Clear
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
Clear
Filter by CAD data type
- 2D
- 3D
Clear

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Optional Attributes

The specifications and dimensions of some parts may not be fully covered. For exact details, refer to manufacturer catalogs .

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.