Spur Gear, Pressure Angle 20°, Module 2.0

Brand :

MISUMI

Caution

Product Description

Product Overview

A gear is a product with teeth added around the circumference of a drive wheel. Gear transmission mechanisms are widely used for transmitting rotational motion, rotational speed, and rotational direction.

Dimensional Drawing

MISUMI Spur Gear Pressure Angle 20° Module 2.0 Dimension Specification Diagram

Threading of shaft holes is not possible for Shape A

Shaft Hole Specifications (Selectable Gear Shapes)
Round Hole	Keyway hole

Please click

Detailed Dimensions of Keyway.

The position relationship between the keyway and the teeth is not fixed.

If the gear shape is not specified, the gear shape will be B.

Material Specification

Type			Material	Surface Treatment
Round Hole	Round Hole+Tapped Hole	Keyway Hole Keyway Hole + Tapped Hole	Material	Surface Treatment
E-GEAHB	E-GEAB	E-GEAKB	General structural steel or carbon steel	-
E-GEAHBB	E-GEABB	E-GEAKBB		Black Oxide Film
E-GEAHBG	E-GEABG	E-GEAKBG		Electroless Nickel Plating
E-GEAHS	E-GEAS	E-GEAKS	Stainless Steel	-

If there are requirements for rust prevention, give priority to products with surface treatment of electroless nickel plating or those made of stainless steel.

Please refer to

Surface Treatment and Rust Prevention Methods

Specification Table

Part Number		Number of Teeth	B	Gear Shape	Shaft Hole Diameter P_H₈ Specified Unit: 1 mm		d Reference Circle Diameter	D Tip Circle Diameter	G Root Circle Diameter	H	L	ℓ₁	ℓ₂	M (Coarse Thread)	*1 Allowable Transmittable Force (N⋅m) Bending Strength
Type	Module	Number of Teeth	B	Gear Shape	Round Hole Round Hole+Tapped Hole	Keyway Hole Keyway Hole + Tapped Hole	d Reference Circle Diameter	D Tip Circle Diameter	G Root Circle Diameter	H	L	ℓ₁	ℓ₂	M (Coarse Thread)	General structural steel or carbon steel	Stainless Steel
Round (Shape A · Shape B) E-GEAHB E-GEAHBB E-GEAHBG E-GEAHS Round Hole+Tapped Hole (Shape B) E-GEAB E-GEABB E-GEABG E-GEAS Keyway hole (Shape A) Keyway Hole + Tapped Hole (Shape B) E-GEAKB E-GEAKBB E-GEAKBG E-GEAKS	2	12	20	A B	8	8N	24	28	19	18	30	10	5	M5	19.75	11.27
		13			8 to 11		26	30	21	20					22.65	12.92
		14			8 to 11		28	32	23	20					25.58	14.6
		15			8 to 15	8N to 12N	30	34	25	24	34	14	7		28.65	16.35
		16			8 to 16	8N to 12N	32	36	27	25					31.73	18.11
		17			8 to 19	8N to 14N	34	38	29	28					34.89	19.91
		18			8 to 21	8N to 16N	36	40	31	30					38.07	21.73
		19			8 to 21	8N to 17N	38	42	33	31					41.27	23.55
		20			8 to 23	8N to 18N	40	44	35	33					44.59	25.45
		21			8 to 23	8N to 19N	42	46	37	34					47.87	27.32
		22			8 to 25	8N to 21N	44	48	39	36					51.27	29.26
		23			8 to 25	8N to 22N	46	50	41	37					54.57	31.14
		24			8 to 28	8N to 23N	48	52	43	40					57.96	33.07
		25			8 to 28	8N to 23N	50	54	45	40				M6	61.43	35.05
		26			8 to 30	8N to 27N	52	56	47	42					64.99	37.09
		27			8 to 33	8N to 30N	54	58	49	45					68.39	39.02
		28			8 to 33	8N to 30N	56	60	51	45					72.12	41.16
		29			8 to 32	8N to 29N	58	62	53	47					75.35	43
		30			8 to 36	8N to 32N	60	64	55	48					78.93	45.04
		32			8 to 38	8N to 33N	64	68	59	50					85.59	48.84
		33			8 to 38	8N to 33N	66	70	61						66.86	38.15
		34			10 to 38	10N to 33N	68	72	63						93.52	53.37
		35			10 to 40	10N to 35N	70	74	65	52					97.01	55.36
		36			10 to 43	10N to 37N	72	76	67	55					100.13	57.14
		38					76	80	71						107.7	61.46
		39					78	82	73						82.97	47.35
		40			10 to 48	10N to 40N	80	84	75	60					114.52	65.35
		42					84	88	79						121.92	69.57
		44					88	92	83						129.46	73.88
		45					90	94	85						133.29	76.06
		46					92	96	87						137.15	78.26
		48			10 to 50	10N to 42N	96	100	91	62					144.35	82.38
		49					98	102	93						110.27	62.93
		50					100	104	95						151.64	86.53
		51			12 to 52	12N to 44N	102	106	97						115.77	66.07
		52					104	108	99	65					158.99	90.73
		54					108	112	103						166.42	94.97
		55					110	114	105						170.54	97.32
		56					112	116	107						174.69	99.69
		57					114	118	109						132.41	75.56
		58					116	120	111						181.5	103.58
		60					120	124	115						189.16	107.94
		62			15 to 52	15N to 44N	124	128	119						196.02	111.86
		63					126	130	121						149.12	85.1
		64					128	132	123						203.78	116.29
		65					130	134	125						207.23	118.26
		66					132	136	127						157.52	89.9
		68					136	140	131						219.54	125.28
		69					138	142	133						165.94	94.7
		70					140	144	135						226.51	129.26
		*72					144	148	139						233.49	-
		*75			20 to 52	20N to 44N	150	154	145						245.07	-
		76					152	156	147						185.61	105.92
		77					154	158	149						188.48	107.56

When selecting a shaft hole diameter of 10 with keyway hole + tapped hole and a keyway width of 4.0 mm (height 1.8 mm), please specify the P dimension as 10K. For details, please refer to Keyway Specifications

*1 The allowable transmission force in the table is a reference value calculated under normal conditions. For details, please refer to Gear Transmission Power Calculation

When using keyway holes + tapped holes, the shaft hole diameter 9N specification cannot be manufactured.

Number of teeth marked with *: No corresponding gear product for E-GEAHS, E-GEAKS

Usage Method

■ Intended Use for Spur Gears

Type of Transmission	Description	Transmission Diagram (Simple)	Representative Transmission Methods	Representative Types of Transmission Pairings
Parallel Transmission	Parallel transmission of rotation/power between two axes with meshing gears			Spur Gear + Spur Gear Helical Gear + Helical Gear Herringbone Gear + Herringbone Gear Spur Gear + Internal Gear Helical Gear + Internal Helical Gear
Linear Transmission	Rotational displacement/power transmitted linearly, or linear displacement/power transmitted rotationally			Spur Gear + Spur Rack Helical Gear + Helical Rack

Example of Use

■Organization Name
Double Speed Double Stroke Mechanism

■ Mechanism Function
1. After the cylinder extends, the spur gear rotates and extends above the fixed rack.
After it rotates, the rack on the moving side extends.

■Function of Spur Gears
1. By clamping the pinion between the fixed rack and the moving rack, you can obtain the cylinder stroke plus the rotational circumference of the gear on the fixed rack, effectively doubling the movement distance of the cylinder stroke.

For detailed information, click Double Speed Double Stroke Mechanism.

Precautions

①	If there are requirements for rust prevention, give priority to products with surface treatment of electroless nickel plating or those made of austenitic stainless steel. Please refer to Surface Treatment and Rust Prevention Methods
②	When used together, gears will have backlash. The gear positions need to be adjusted according to the on-site assembly conditions to achieve optimal performance.
③	When selecting the shaft hole specification without threads, the fixing screws are not included.
④	The position relationship between the keyway and the teeth is not fixed.

Application Industries

Smart phone	Medical	Electronic & Electrical Appliances

Automotive	Robotics	Lithium battery

(Economy series) Spur gear Module 1.0	Spur Gear, Custom Gear Width & Hub Size, Pressure Angle 20°	High-Frequency Quenched Rack, Gear Teeth Grinding Type

Representative Model: C-GEAKBB1.0-36-10-B-15N	Representative Model: GEFHB1.0-30-8-15-W10-H26	Representative Model: RGEAH1.0-500-A
Advantages: High tooth surface hardness, high cost performance	Advantage: custom size	Advantages: High tooth surface hardness, length can be extended