행복해1
2013. 10. 21. 16:04
External and Internal Gears
Spur
Helical
skew gears
Double helical
Bevel
Spiral bevel
Hypoid
Crown
Worm
Non-cicluar
Rack and Pinion
Epicyclic
Sun and planet
Harmonic drive
Cage gear
Magnetic gear
출처:위키피디아