Timing pulleys and belts are the best way to transmit power from your motor to drive wheels or a spinning weapon.
While O-Rings and round belts will slip under tension, timing belts have teeth that ensure a positive lock to the pulleys.
Pitch (distance between tooth centers): 3mm
Number of Teeth: 136T
Material: Chloroprene Rubber with Fiberglass reinforcement
Tensile strengh: 19-25MPa
Weight (smallest to largest): 1 - 4g (0.04 - 0.14oz)
0-FT-BELT-408MMBelt Length Calculator