Our specialty Timing Pulleys and Belts are the perfect solution for transmitting power from motors to wheels or shafts.
While O-Rings and round belts will slip under tension, timing belts have teeth that ensure a positive lock to the pulleys.

Nine pulley sizes means there are 45 different ratio combinations to choose from!
Use with FingerTech Timing Belts, or any other 3mm pitch belt.
•S3M pitch (3mm high-torque)
•Belt Width (maximum): 4mm
•Sizes: 15 Teeth - 42 Teeth
•Bore: 3mm (15T and 16T bores can be drilled up to 5/32", larger pulleys can be drilled up to 1/4")

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.

A range of twenty-eight belt sizes allows you to design your robot then pick a belt, rather than the other way around!
Use with our FingerTech S3M pulleys, or any other 3mm pitch pulley.
•S3M pitch (3mm high-torque)
•Width: 4mm
•Sizes: 120mm (40T) - 384mm (128T).

Use with our S3M pulleys.
•S3M pitch
Choose the required size from a range of nine belt sizes: 180mm (60T) - 459mm (153T).

• Bore: 4mm (0.16in)
• Belt Diameter: 14.4mm (0.57in)
• Width: 6mm (0.23in)
• Tighten this center pulley onto a motor shaft with the setscrew built into the hub.

• Bore: 8mm (5/16in)
• Belt Diameter: 35mm (1.375in)
• Width: 7.6mm (0.34in)

• Bore: 8mm (5/16in)
• Belt Diameter: 30mm (1.18in)
• Width: 7.3mm (0.29in)

• Bore: 5mm (0.20in)
• Belt Diameter: 18.2mm (0.72in)
• Width: 9.5mm (0.38in)

• Bore: 5mm (0.20in)
• Belt Diameter: 16.5mm (0.65in)
• Width: 8.8mm (0.35in)

• Bore: 5mm (0.19in)
• Belt Diameter: 13.4mm (0.53in)
• Width: 7mm (0.28in)