Spur Gear Pressure Angle 20° Module 0.8

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.

Product Feature

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

Advantages:
(1) No transmission delay, not prone to skipping or slipping teeth
(2) Relatively free change of transmission direction
(3) Relatively free adjustment of transmission speed
(4) Suitable for high-power transmission, as well as high-load and high-torque transmission
(5) Less affected by temperature, humidity, or oily environments
(6) Suitable for compact space designs

Disadvantages:
(1) Prone to noise
(2) Lubricating oil required for maintenance
(3) Safety protection devices required

Dimensional Drawing

MISUMI Spur Gear 20° Pressure Angle, Module 0.5 Dimension Specification Diagram

A round shaft hole specification means it does not have a threaded hole.

Specification Table

Material Specifications

Type		Material	Surface Treatment	Accessories
Round Hole	Round Hole+Threaded Hole
E-GEAHBN	E-GEABN	Equivalent to S45C	-	Set Screw (SCM435·Ferroferric Oxide Protective Film)
E-GEAHBB	E-GEABB		Ferroferric Oxide Protective Film
E-GEAHBS	E-GEABS	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. Please refer to

Surface Treatment and Rust Prevention Methods

Specification Table

Part Number		Number of Teeth	B	Gear Shape Type	Shaft Hole Diameter P_H7 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	Number of Teeth	B	Gear Shape Type	Round Hole Round Hole+Threaded Hole	d Reference Circle Diameter	D Tip Circle Diameter	G Root Circle Diameter	H	L	ℓ1	ℓ2	M (Coarse Thread)	Equivalent to S45C	Equivalent to SUS304
(Selectable Gear Shape) Round Hole (Type A) E-GEAHBN E-GEAHBB E-GEAHBS Round Hole+Threaded Hole (Type B · Type K) E-GEABN E-GEABB E-GEABS	0.8	12	7	K	4·5	9.6	11.2	7.6	11.2	20	13	3	M3	1.11	0.63
		14			4 to 6, 6.35	11.2	12.8	9.2	12.8					1.43	0.82
		15				12	13.6	10	13.6					1.6	0.92
		16	5	A B		12.8	14.4	10.8	10	14	9			1.27	0.72
		16	7			12.8	14.4	10.8			7			1.78	1.01
		18	5			14.4	16	12.4			9			1.52	0.87
		18	7			14.4	16	12.4			7			2.13	1.22
		20	5			16	17.6	14			9			1.78	1.02
		20	7			16	17.6	14			7			2.5	1.42
		24	5		5 to 8	19.2	20.8	17.2	12.5		9			2.32	1.32
		24	7			19.2	20.8	17.2			7			3.25	1.85
		25	5			20	21.6	18			9			2.46	1.4
		25	7			20	21.6	18			7			3.44	1.96
		28	5			22.4	24	20.4			9			2.89	1.65
		28	7			22.4	24	20.4			7			4.04	2.3
		30	5			24	25.6	22			9			3.16	1.8
		30	7			24	25.6	22			7			4.42	2.52
		32	5			25.6	27.2	23.6			9	4		3.42	1.95
		36			6 to 9·6.35	28.8	30.4	26.8	14				M4	4.01	2.29
		40				32	33.6	30						4.58	2.61
		45				36	37.6	34						5.33	3.04
		48				38.4	40	36.4						5.77	3.3
		50				40	41.6	38						6.07	3.46

^*1 The allowable transmitted 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 our company.

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 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.

(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: Nitriding treatment, high cost performance	Advantage: custom size	Advantages: High tooth surface hardness, length can be extended