1) Description of Spur Gear
Spur gears are cylindrical gears with teeth parallel to the axis, and the teeth are distributed along the busbar direction of the cylinder,
which is one of the most basic and common types of gear transmission.
2) Feature of Spur Gear
The structure is simple, the difficulty of tooth processing is low, and it is easy to understand and manufacture;
only radial force is generated during transmission, and there is no axial force, which requires low axial bearing capacity of the bearing;
The transmission ratio is stable, which can achieve accurate constant ratio transmission.
3) Working Principle
When the active spur gear rotates, its teeth meshed with the teeth of the driven spur gear in turn, and the torque is transmitted
from the driving shaft to the driven shaft through the thrust between the tooth surfaces.
4) Application of Spur Gear
It is suitable for equipment that requires simple transmission structure, such as the transmission mechanism inside the clock,
the power transmission system of small toys, and the transmission parts of household sewing machines.
Products | Spur Gear |
Custom Made | √ |
Gear Profile Type | Cylindrical Gears |
Manufacturing | Gear Hobbing |
Teeth Grinding | √ |
Module (M) | Custom |
Number of Teeth (Z) | Custom |
Pressure Angle (α) | Custom |
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 |