From: Effects of pressure angle and tip relief on the life of speed increasing gearbox: a case study
No of teeth (z) | Pr angle (α) | Add (ha) | Ded (hf) | Centre distance(a) |
---|---|---|---|---|
24 | 15 | 12.278 | 5.288 | 485.00 |
 | 20 | 12.279 | 5.481 |  |
 | 22.5 | 12.278 | 5.535 |  |
94 | 15 | 9.006 | 8.560 | Â |
 | 20 | 9.200 | 8.560 |  |
 | 22.5 | 9.253 | 8.560 |  |