Idler Pulleys | McMaster-Carr

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.

Timing Belt Idler Pulleys

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

V-Belt Idler Pulleys

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

Round-Belt Idler Pulleys

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

Belt Conveyors

Steel Pulleys for Conveyor Belts

Replace worn or damaged pulleys or create new belt conveyors.

Rubber-Coated Pulleys for Conveyor Belts

A rubber coating, also known as lagging, increases friction for a better grip on the belt.

Stainless Steel Pulleys for Conveyor Belts

The corrosion-resistant stainless steel construction makes these pulleys suitable for washdown applications.

Weld-On Coating for Conveyor Pulleys

Weld these coating strips onto pulleys to help them keep a better grip on conveyor belts.

Retainer-Mount Coating for Conveyor Pulleys

Slide these coating strips into metal retainers that you attach to your pulley—they add friction that helps conveyor belts stay on pulleys and are replaceable when they’re worn.

Adhesive-Mount Coating for Conveyor Pulleys

To prevent conveyor belts from slipping, stick these coatings onto pulleys using adhesive.