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ID : 5297
Gear Sliding Resistance
Table shows gear transmission efficiency below.
Use gear of which transmission efficiency is 98% or more except for skew gears. In this case, sliding resistance of gear (friction torque) can be disregarded.
- Classification and type of gear
| Classification of gear | Type of gear | Efficiency (%) |
|---|---|---|
| Parallel axis | Spur gear | 98.0 - 99.5 |
| Rack | ||
| Internal gear | ||
| Helical gear | ||
| Helical rack | ||
| Double helical gear | ||
| Intersecting axis | Straight bevel gear | 98.0 - 99.0 |
| Spiral bevel type gear | ||
| Zerol bevel gear | ||
| Skew axis | Cylindrical worm gear | 30.0 - 90.0 |
| Crossed helical gear | 70.0 - 95.0 |
ID : 5297