Spur Gear Pressure Angle 20° Module 3.0

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.

Feature 1: Spur gears can provide high transmission power, and the instantaneous transmission ratio is stable, making them suitable for high-torque transmission and conveying.
Feature 2: Spur gears have a fixed center distance and long service life, making them suitable for compact and highly reliable mechanisms.
Feature 3: MISUMI brand economy spur gears feature high-precision tooth profiles, with a precision grade of GB/T 10095-2008 Grade 8; shaft hole diameter tolerance is H7.
Feature 4: Characteristics of Gear Mechanisms
 

Material Specifications

Type		Material	Surface Treatment	Accessories
Round Hole	Keyway Hole Keyway Hole + Threaded Hole
E-GEAHB	E-GEAKB	Equivalent to S45C	-	Set Screw (SCM435·Ferroferric Oxide Protective Film)
E-GEAHBB	E-GEAKBB		Ferroferric Oxide Protective Film
E-GEAHS	E-GEAKS	SUS304	-	Set Screw (Equivalent to SUS304)

Gear accuracy: GB/T 10095-2008 Grade 8.
If there are requirements for rust prevention, give priority to products made of SUS304.
Specification Table

Part Number		Number of Teeth	Thickness B	Gear Shape Type	Shaft Hole Diameter PH7 Specified Unit: 1 mm		d Pitch Circle Diameter	D Addendum Circle Diameter	G Dedendum Circle Diameter	H	L	ℓ1	ℓ2	M (Coarse Thread)	* 1Permissible Transmittable Torque (N⋅m) Bending Strength
Type	Module Number				Round Hole	Keyway Hole (Type A) Keyway Hole + Threaded Hole (Type B)									S45C	SUS304
(Selectable Gear Shape) Round Hole (Type A · Type B) E-GEAHB E-GEAHBB E-GEAHS Keyway hole (Type A) Keyway Hole + Threaded Hole (Type B) E-GEAKB E-GEAKBB E-GEAKS	3.0	12	30	A B	8 to 17	8N·10N to 12N	36	42	28.5	27	48	18	9	M5	66.66	38.04
		14			8 to 22	8N·10N to 16N	42	48	34.5	32					86.33	49.27
		15			8 to 24	8N·10N to 19N	45	51	37.5	35					96.7	55.18
		16			8 to 28	8N·10N to 23N	48	54	40.5	40					107.1	61.12
		18			8 to 32	8N·10N to 27N	54	60	46.5	44				M6	128.5	73.33
		19			8 to 33	8N·10N to 28N	57	63	49.5	45					139.28	79.48
		20			8 to 38	8N·10N to 33N	60	66	52.5	50					150.49	85.88
		22			8 to 42	8N·10N to 36N	66	72	58.5	54					173.02	98.74
		24			8 to 46	8N·10N to 39N	72	78	64.5	58					195.6	111.62
		25			8 to 48	8N·10N to 40N	75	81	67.5	60					207.33	118.31
		26			10 to 53	10N to 44N	78	84	70.5	65					219.36	125.18
		28			10 to 58	10N to 47N	84	90	76.5	70					243.41	138.9
		30			10 to 60	10N to 50N	90	96	82.5	75					266.4	152.02
		32					96	102	88.5						288.88	164.85
		34			12 to 63	12N to 50N	102	108	94.5	80					315.62	180.11
		35					105	111	97.5						327.41	186.84
		36					108	114	100.5						337.93	192.84
		40			12 to 65		120	126	112.5	85					386.49	220.55
		42			20 to 65	20N to 50N	126	132	118.5						411.47	234.81
		45					135	141	127.5						449.84	256.7
		48			25 to 68	25N to 50N	144	150	136.5						487.2	278.02
		50					150	156	142.5						511.77	292.04

When selecting a shaft hole with keyway + threaded hole, shaft hole diameter 10, and keyway width 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
For custom specifications, please contact us.

(1) If there are requirements for rust prevention, give priority to products made of SUS304.
Please refer to Surface Treatment and Rust Prevention Methods
(2) When gears are used together, there will be backlash. The gear position relationship needs to be adjusted according to the on-site assembly situation to achieve optimal performance.
(3) For shaft hole specifications, when selecting the non-threaded type, the fixing screws are not included.
(4) The positional relationship between the keyway and the gear teeth is not fixed.