機器
axle
axle drive gear
bevel
bevel drive
bevelgear
cogs
cogwheel
concept
design
differential gear
driven gear
driving gear
engineering
flat
follower gear
gear
gear pair
gear set
gearing
gearwheel
helical
icon
illustration
industry
machinery
mechanics
mechanism
obliquespur
pinion
serrated joint
spin
steel
technology
tool
tooth gear
toothed coupling
toothing
transmission
wheel