Pin wheel 1 rotates about fixed axis A and carries pins a which mesh with teeth d of bevel gear 2. Gear 2 rotates about fixed axis B. Pin wheel 1 is designed with the axes of pins a lying in a single plane. The mechanism transmits rotation between intersecting axes A and B. The transmission ratio from wheel 1 to gear 2 is i₁₂=ω₁/ω₂=z₂/k where ω₁ and ω₂ are the angular velocities of wheel 1 and gear 2, z₂ is the number of teeth d of gear 2, and k is the number of pins a of wheel 1.
$2589$PG,3L$