1) Descriptions of Straight Bevel Gear
A straight bevel gear is a type of bevel gear whose tooth lines are distributed in a straight line along the conical generatrix.
It is used for power transmission between intersecting shafts (usually at a 90-degree angle).
2) Features of Straight Bevel Gear
a)The tooth profile is a straight line and is parallel to the generatrix of the cone.
b)The tooth surfaces are of involute or circular arc shape, and during meshing, they present point contact.
c)Applicable to the transmission layout where the two shafts intersect.
3) Advantages of Straight Bevel Gear
a)Simple structure: Design and manufacture are easier to achieve than spiral bevel gears.
b)High transmission efficiency: The friction loss in straight gear meshing is small, and the efficiency can reach over 95%.
c)Lower cost: The processing technology is mature and suitable for mass production.
| Products | Straight Bevel Gear |
| Custom Made | √ |
| Shaft Angle | 90° |
| Gear Teeth manufacturing | Gear Shaping |
| Gear Teeth Grinding | √ |
| Module (M) | 12 |
| Number of Teeth (Z) | 32 |
| Pressure Angle (α) | 20° |
| Teeth Accuracy Grade | ISO 8-9 Grade |
| Heat Treatment | Induction Hardened/Carburizing |
| Surface Hardness | Pinion 58-62 HRC/Gear 50-55 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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Straight Bevel Gears With 90 Deg Shaft Angle For Versatile Shaft Application Images
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