Pitch: Pitch of the timing belt; the distance from one tooth to the next.

Stretch: How much stretch to add to the belt. Polycord (round belt) should be 5-20%, polybelt (flat belt) should be 1-3%.

%

Crossed? Whether the belt is crossed in a figure-eight or infinity shape, in order to reverse the direction of motion.

Pulley 1

Pulley 2

Calculate By

# Teeth

ODOuter diameter of the pulley / belt. Only valid for 5mm HTD belts currently.

Center AddCenter to add. When using 'desired C-C' mode with polybelt, the additional extra is removed from the belt, not added to the center value.

PD

Ratio

Belting Option Source: Teeth