AISI 4140 42CrMo Steel 7 Module Helical Gears For Industrial Gearbox
1) Description of Helical Gear
Helical gears are formed by cutters that produce an angle that allows several teeth to mesh simultaneously.
2) Features of the Helical Gear
As the sliding contact of the meshing teeth, helical Gear with more load-carrying capacity and quietness
and smoothness of operation.
3) Mounting specifications of Helical Gear
a) Keyway mounting
b) Set Screw
c) Hub clamping screws
d) Split
e) Simple bore
Products | Helical Gears |
Custom Made | √ |
Gear Profile Type | Cylindrical Gear |
Manufacturing | Gear Hobbing |
Teeth Grinding | √ |
Module (M) | 7 |
Number of Teeth (Z) | 68 |
Pressure Angle (α) | 20° |
Lead Angle | 20° |
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 |