Transmission Belts | McMaster-Carr

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About Sizing Belts

L Series Timing Belts

Neoprene is reinforced with fiberglass for quiet operation with high strength.

L Series Dust-Free Timing Belts

Urethane has excellent abrasion resistance, so these belts don’t create dust while they run.

L Series Heat-Resistant Timing Belts

Withstanding temperatures up to 400° F, silicone is the best choice for use in hot environments. Belts have Kevlar reinforcement, which has very high strength, low stretch, and excellent shock resistance.

L Series Cut-to-Length Timing Belts

Quiet-running neoprene is reinforced with high-strength fiberglass for use in general purpose linear motion drives.

L Series Dust-Free Cut-to-Length Timing Belts

Known for excellent abrasion resistance, use one of these urethane belts in your linear motion application to don’t create dust while they run. Belts have Kevlar reinforcement, which has very high strength, low stretch, and excellent shock resistance.

L Series Timing Belts with Teeth on Both Sides

Use a single belt to drive three or more pulleys in reversing and serpentine drive systems. These belts have teeth on both sides to transmit power from either side and rotate pulleys in opposite directions. Belts are neoprene with fiberglass reinforcement for quiet operation with high strength.

T Series Dust-Free Timing Belts

Belts are abrasion-resistant urethane, so they don’t create dust while they run. They have steel reinforcement, which has very high strength, low stretch, and excellent shock resistance.

MXL Series Dust-Free Timing Belts

Urethane has excellent abrasion resistance, so these belts don’t create dust while they run. They have Kevlar reinforcement, which has very high strength, low stretch, and excellent shock resistance.

MXL Series Timing Belts

Quiet-running neoprene is reinforced with high-strength fiberglass for use in general purpose drive systems.

MXL Series Cut-to-Length Timing Belts

Used to drive small-scale linear motion applications, these belts are neoprene with fiberglass reinforcement for quiet operation with high strength.

H Series Timing Belts

Good for use in general purpose drive systems, these belts combine quiet-running neoprene with high-strength fiberglass reinforcement.

H Series Dust-Free Timing Belts

Urethane has excellent abrasion resistance, so these belts don’t create dust while they run. Belts have steel reinforcement, which has very high strength, low stretch, and excellent shock resistance.

H Series Heat-Resistant Timing Belts

Enduring temperatures up to 400° F, silicone is the best choice for use in hot environments. Belts have Kevlar reinforcement, which has very high strength, low stretch, and excellent shock resistance.

H Series Cut-to-Length Timing Belts

Designed for use in linear motion drives, these belts are neoprene with fiberglass reinforcement for quiet operation with high strength.

H Series Dust-Free Cut-to-Length Timing Belts

Known for excellent abrasion resistance, use a urethane belt in your linear motion application to avoid dust from wear. They have Kevlar reinforcement, which has very high strength, low stretch, and excellent shock resistance.

XL Series Timing Belts

Belts combine neoprene with fiberglass reinforcement for quiet operation with high strength.

XL Series Dust-Free Timing Belts

Abrasion-resistant urethane means these belts don’t create dust while they run.

XL Series Heat-Resistant Timing Belts

Resisting temperatures up to 400° F, silicone can take the heat. Belts have Kevlar reinforcement, which has very high strength, low stretch, and excellent shock resistance.

XL Series Dust-Free Cut-to-Length Timing Belts

Drive linear motion while maintaining a clean environment—urethane has excellent abrasion resistance so these belts don’t create dust while they run. They have Kevlar reinforcement, which has very high strength, low stretch, and excellent shock resistance.

XL Series Cut-to-Length Timing Belts

Use quiet-running neoprene with high-strength fiberglass reinforcement in your linear motion drive system.

XL Series Timing Belts with Teeth on Both Sides

Often used in reversing and serpentine drive systems, teeth on both sides allow you to rotate pulleys in opposite directions. Belts are quiet-running neoprene and high-strength fiberglass.

XH Series Timing Belts

Quiet-running neoprene is reinforced with high-strength fiberglass to move extra heavy loads with little noise.

AT Series Dust-Free Timing Belts

Made of urethane, these belts have excellent abrasion resistance, so they don’t create dust while they run.

AT Series Dust-Free Cut-to-Length Timing Belts

Urethane has excellent abrasion resistance, so these belts don’t create dust while they run. They have steel reinforcement, which has very high strength, low stretch, and excellent shock resistance.

XXH Series Timing Belts

Known as double extra heavy duty belts, these XXH belts move heavy loads.

High-Strength Timing Belts and Pulleys

High-Strength Ultra-Quiet Timing Belts

These quiet-running timing belts have a curved tooth shape that provides higher strength than trapezoidal teeth.

High-Strength HTD Timing Belts

HTD (high torque drive) timing belts have a curved tooth shape that provides higher strength than trapezoidal teeth. Belts are neoprene with fiberglass reinforcement for quiet operation.

High-Strength HTD Cut-to-Length Timing Belts

Curved teeth made from fiberglass-reinforced neoprene make these HTD (high-torque drive) belts stronger and quieter than belts with trapezoidal teeth.

Ultra-High-Strength Poly Chain Timing Belts

Strong enough to replace roller chain, these timing belts combine the high strength of a curved tooth with high-strength carbon fiber reinforcement.

Flat Belts

Heavy Duty Extended-Life Leather Flat Belting

Also known as center-stock belting.

High-Speed Extended-Life Leather Flat Belting

A nylon core allows this belting to handle higher speeds than other leather flat belting.

Light Duty Extended-Life Leather Flat Belting

Also known as side-stock belting.

Super-Grip Flat Belting

Commonly used for material handling and light to medium duty power transmission, this belting has a textured rubber cover on both sides for gripping material.

Made-to-Order Flat Belts

These oil-resistant Buna-N belts have a nylon core.

Abrasion-Resistant Made-to-Order Flat Belts

Made of polyurethane, these belts are chemical and abrasion resistant.

Flat Belting

Weld the ends of this belting together for a firm hold.

V-Belts

The trapezoidal shape allows these belts to wedge into pulleys in the presence of misalignment.

Precision-Matched V-Belts

Ensure even load distribution on drives with multiple belts.

High-Capacity Narrow-Wedge V-Belts

A narrow belt profile transmits up to three times the horsepower of standard V-belts for use on heavy duty drives with shock loads.

Cogged V-Belts

More flexible than smooth V-belts, these have notches that allow them to bend around small-diameter pulleys and accommodate twists and turns on curved drives.

Cogged V-Belts for Variable-Speed Pulleys

A wide profile allows these belts to ride up and down the groove in variable-speed pulleys to handle a wide range of speed ratios.

High-Capacity Narrow-Wedge Cogged V-Belts

A narrow belt profile transmits up to three times the horsepower of standard cogged V-belts for use on heavy duty drives with shock loads.

Banded V-Belts

Also known as serpentine belts, these have multiple bands that function as a single unit for consistent drive performance and even load distribution. They handle shock loads better than standard belts.

Ultra-Flexible Banded V-Belts

An extremely thin profile gives these belts the flexibility to bend around small-diameter pulleys.

Double V-Belts

Grooves on both sides of these belts transmit equal power, making them ideal for serpentine drives.

Adjustable-Length V-Belting

Twist-Lock Adjustable-Length V-Belting

Twist the tabbed links together to form a belt. Because it’s made of individual links, this belting allows you to change your belt length without dismantling your drive.

Grip-Top Twist-Lock Adjustable-Length V-Belting

A textured PVC top layer helps convey material in slippery environments or up steep inclines.

Static-Control Twist-Lock
Adjustable-Length V-Belting

This belting limits static electricity discharge for hazardous applications such as fuel transfer and solar-cell manufacturing.

Screw-Connect Adjustable-Length V-Belting

Cut this perforated belting to length and screw a connector into the holes. Because you can quickly increase or reduce its length, it is often used to make replacement V-belts.

Press-Lock Adjustable-Length V-Belting

Steel rivets hold the individual links together. Use an installation tool to add or remove links.

V-Belting

Made of chemical- and abrasion-resistant polyurethane rubber, this belting is often used in light to medium duty power-transmission and conveying applications.

Profile-Top V-Belting

A range of specially shaped tops carry materials in conveying applications.

Banded V-Belting

Bands provide extra surface contact for handling high speed ratios.

Round Belts

Made of polyurethane, these belts resist chemicals and abrasion.

Textured Round Belts

Often used with lathes and conveyors, these textured belts grip loads better than standard round belts, making sure heavy loads don’t slip.

Flexible Round Belts

These neoprene belts are more flexible than polyurethane belts.

Static-Control Round Belts

Made of a specially formulated polyurethane, these belts prevent the static buildup that could damage sensitive equipment in your setup.

Low-Temperature Round Belts

Made of hytrel polyester, these belts can be used in lower temperatures than standard polyurethane belts without becoming brittle.

Quick-Hook Twisted Round Belts

Install these belts without dismantling your drive shafts—hook the ends together with the attached stainless steel connector.

Chemical-Resistant Made-to-Order Round Belts

In addition to chemical resistance, these belts also provide increased abrasion resistance over heavy duty round belts.

Heavy Duty Made-to-Order Round Belts

These belts are reinforced with a polyester cord for strength.

Round Belting

This belting has a smooth, easy-to-clean surface.

Textured Round Belting

The textured surface improves gripping ability.

Heavy Duty Round Belting

This polyurethane belting is reinforced with a polyester cord for strength.

Quick-Connect Hollow-Core Round Belting

The hollow core of this polyurethane belting allows you to join the ends without trimming, welding, or using special tools.

Adjustable-Length Round Belting

Lengthen or shorten this polyurethane belting without tools or connectors—the interlocking links attach and detach with a twist.

Ultra-Flexible Round Belting

Coiled-metal construction provides flexibility to bend around small-diameter pulleys and accommodate curved belt drives and misaligned pulleys.

Extended-Life Leather Round Belting

More elastic than polyurethane, this leather belting resists permanent stretch for a long service life.

Conveyor Belting

Belting for Roller-Bed Conveyors

This belting has a tough cover on the bottom to grip rollers.

Cleated Belting for Roller-Bed Conveyors

Cleats keep material on the belt when traveling along inclines and declines.

Belting for Slider-Bed Conveyors

This belting has a smooth surface.

Cleated Belting for Slider-Bed Conveyors

Cleats keep material on the belt when traveling along inclines and declines.

Rough-Top Belting for Slider-Bed Conveyors

The textured surface grips packages and cartons to prevent material from slipping when traveling on inclines and declines.

Modular Mini Chain Belt Conveyors

Build a mini conveyor in any shape you need. These conveyors have curved, straight, incline, and decline runs that you can quickly join together with the included brackets.

Belt Conveyors

Move small, loose, and irregularly shaped material that might fall through or shift around roller or skate wheel conveyors.

Bench-Top Belt Conveyors

A top-mount motor lets you rest these conveyors directly on a bench top.

Steel Mesh Belt Conveyors

Move parts down your line in extreme temperatures.

Cleated Belt Conveyors for Inclines

The cleats on these conveyors prevent items from tumbling down as you move them along steep slopes.

Easy-Access Ready-To-Run Mini Belt Conveyors

Run these conveyors right out of the box—they simply plug into an electrical outlet for power. The belts on these conveyors can move a wide range of small products, including electronic components, molded plastic parts, and other irregularly shaped parts that would catch on rollers and skate wheels.

Illuminated Ready-To-Run Mini Belt Conveyors

Inspect parts for defects as they pass over a backlit section of these conveyors.

High-Capacity Ready-to-Run Mini Belt Conveyors

Steel construction and greater horsepower give these conveyors higher capacities and speeds than standard Ready-to-Run Mini Belt Conveyors.

Ready-to-Run Mini Belt Conveyors

Made of aluminum, these conveyors are lightweight and corrosion resistant.

Stainless Steel Ready-To-Run Mini Belt Conveyors

Ready to plug in and run right out of the box, these conveyors move items in areas that are frequently cleaned, such as in food plants.

Conveyor Chain Belting

Also known as sprocket-driven conveyor belting, sprockets drive the belt.

V-Belts for V-Groove Conveyor Rollers

Replace worn and broken V-belts on conveyor rollers.

Belts for Vacuum Cleaners

Replace belts in common upright vacuum brands.