spherical involute
| helicoid
| spherical involute | |
| gear.tr. | Kugelevolvente |
| helicoid | |
| gear.tr. | Schraubenfläche |
| |||
| Kugelevolvente m | |||
| sphaerische Evolvente | |||
|
spherical involute : 4 phrases in 2 subjects |
| Gear train | 1 |
| Mechanic engineering | 3 |