and
auto
automobile
automotive
cog
cross
differential
drive
engine
force
gear
gearing
hard
horizontal
industry
inside
machinery
machining
mechanic
mechanical
mechanism
metallic
new
on
part
photograph
power
production
real
repair
rotate
rotation
section
service
shiny
spare
speed
spin
stainless
technical
technology
teeth
torque
transfer
transmission
truck
turning
vehicle
wheel