perpendicular to sliding surfaces
along sliding surfaces
somewhere in between above two
unpredictable
leads the sliding velocity vector by 90°
lags the sliding velocity vector by 90°
is along the sliding velocity vector
leads the sliding velocity vector by 180°
crank has a uniform angular velocity
crank has non-uniform velocity
crank has uniform angular acceleration
crank has uniform angular velocity and angular acceleration
velocity of various parts
acceleration of various parts
displacement of various parts
angular acceleration of various parts
pitch circle
base circle
prime circle
outer circle