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Brand Name : YIZGEAR
Model Number : SPG22081101
Place of Origin : CHINA
MOQ : 5 Pieces
Price : $10/Piece
Payment Terms : L/C, D/P, T/T, Western Union
Supply Ability : 1500 Pieces/Month
Delivery Time : 50 Dyas
Packaging Details : Plywood Crate
Material : 20CrMnTi
Module : 1.5
Manufacturing Process : Gear Teeth Grinding
Teeth Number : 56
Profile Type : Spur Gear
Quality Grade : ISO 6-7 Grade
1) Description of Spur Gear
Spur gears or straight-cut gears are the simplest type of gear. They consist of a cylinder or disk with teeth
projecting radially. Viewing the gear at 90 degrees from the shaft length (side on) the tooth faces are straight
and aligned parallel to the axis of rotation. Looking down the length of the shaft, a tooth's cross section is
usually not triangular. Instead of being straight (as in a triangle) the sides of the cross section have a curved
form (usually involute and less commonly cycloidal) to achieve a constant drive ratio. Spur gears mesh together
correctly only if fitted to parallel shafts.
2) Pressure angle of Spur Gear
Spur gear can be classified into two pressure agnles.
20° being the current industry standard and 14½° being the former equipments.
Products | Spur Gear |
Custom Made | √ |
Gear Profile Type | Cylindrical Gears |
Manufacturing | Gear Hobbing |
Teeth Grinding | √ |
Module (M) | 1.5 |
Number of Teeth (Z) | 56T |
Pressure Angle (α) | 20° |
Helix Angle (β) | 0 |
Accuracy Grade | ISO 6-7 Grade |
Heat Treatment | Carburizing |
Surface Hardness | 58-62 HRC |
STEEL CODE GRADES COMPARISON | |||||
CHINA/GB | ISO | ГΟСТ | ASTM | JIS | DIN |
45 | C45E4 | 45 | 1045 | S45C | CK45 |
40Cr | 41Cr4 | 40X | 5140 | SCr440 | 41Cr4 |
20CrMo | 18CrMo4 | 20ХМ | 4118 | SCM22 | 25CrMo4 |
42CrMo | 42CrMo4 | 38XM | 4140 | SCM440 | 42CrMo4 |
20CrMnTi | 18XГT | SMK22 | |||
20Cr2Ni4 | 20X2H4A | ||||
20CrNiMo | 20CrNiMo2 | 20XHM | 8720 | SNCM220 | 21NiCrMo2 |
40CrNiMoA | 40XH2MA/ 40XHMA | 4340 | SNCM439 | 40NiCrMo6/ 36NiCrMo4 | |
20CrNi2Mo | 20NiCrMo7 | 20XH2MA | 4320 | SNCM420 |
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1.5 Module 56 Tooth Metal Spur Gear For Hand Wheel Gear Reducers Images |