Serpentine Pulleys | McMaster-Carr

Filter by

Shaft Diameter

Belt Trade Size

Number of Grooves

V-Belt Type

Bore Type

Pulley Type

Shaft Type

Pitch Diameter

System of Measurement

Width

Material

Belt Type

Bushing Trade Number

For Maximum Belt Width

Shaft Mount Type

Body Type

Overall Width

For Use With

Keyway Width

DFARS Specialty Metals

Exempt

Export Control Classification Number (ECCN)

REACH

RoHS

686 Products

Belts and Pulleys

Quick-Disconnect (QD) Bushing-Bore V-Belt Pulleys

Use these pulleys with compatible quick-disconnect bushings.

Taper-Lock Bushing-Bore V-Belt Pulleys

Mount these pulleys with a taper-lock bushing for a tight, wobble-free hold on your shaft.

Split-Tapered Bushing-Bore V-Belt Pulleys

These pulleys have the same sizing versatility as quick-disconnect pulleys, but they create a tighter grip on bushings for use in high-torque applications.

V-Belt Pulleys

Choose from nylon, UHMW, and zinc.

Heavy Duty V-Belt Pulleys

These pulleys are cast iron.

Adjustable-Speed V-Belt Pulleys

Also known as step-cone pulleys, these have multiple groove sizes so you can quickly change rotation speed by moving your belt to a different groove.

Constant-Tension V-Belt Pulleys

A built-in spring maintains tension on your belt.

Adjustable-Pitch V-Belt Pulleys

Increase efficiency, vary speed, and extend the life of your drive by changing the pitch on these pulleys.

V-Belt Idler Pulleys

These pulleys spin freely on built-in ball bearings to maintain tension for reduced wear and vibration.

Flat-Belt Idler Pulleys

These pulleys spin freely on built-in bearings to maintain tension for reduced wear and vibration.

Timing Belt Idler Pulleys

Add these free-spinning pulleys to your timing belt setup to minimize vibration and keep belts from wearing out.

High-Strength HTD Timing Belt Idler Pulleys

Keep high torque drive (HTD) timing belt systems running tightly with these idler pulleys. Made with built-in, free-spinning ball bearings, they're installed on shafts or belt tensioners to remove slack from timing belts.

V-Belt and Pulley Trade Size Identifiers

Measure V-belt cross sections and pulley groove depths to select the correct size belt.

Round-Belt Idler Pulleys

These pulleys spin freely on built-in bearings to maintain tension for reduced wear and vibration.