Fan Belts | McMaster-Carr

	REACH (Registration, Evaluation, Authorization and Restriction of Chemicals) REACH (Registration, Evaluation, Authorization and Restriction of Chemicals)

REACH Compliant

	Reinforcement Material Reinforcement Material

Plastic

	Number of Teeth Number of Teeth

23
25
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372
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498
512
550
582
687
962

	Teeth Location Teeth Location


Teeth on One Side	Teeth on Both Sides

	Number of Bands Number of Bands

	Teeth Shape Teeth Shape

	Trapezoidal
	Curved
	Tire Track

	Diameter Diameter

	Maximum Temperature Maximum Temperature

	Minimum Temperature Minimum Temperature

3,035 Products

About Sizing Belts

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.

Made-to-Order V-Belts

If none of our standard V-belts have the outer circumference you require, tell us what size you need and we'll make one for you.

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.

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.

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.

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.

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.

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.

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.

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

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

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.

Timing Belts and Pulleys

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.

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 Cut-to-Length Timing Belts

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

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.

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 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.

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 Cut-to-Length Timing Belts

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

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 Timing Belts

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

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 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.

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.

MXL Series Timing Belts

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

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 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.

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.

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.

High-Strength Timing Belts and Pulleys

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.

High-Strength Ultra-Quiet Timing Belts

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

Round Belts

Made of polyurethane, these belts resist chemicals and abrasion.

Flexible Round Belts

These neoprene belts are more flexible than polyurethane belts.

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.

Quick-Hook Twisted Round Belts

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

Heavy Duty Made-to-Order Round Belts

These belts are reinforced with a polyester cord for strength.

Chemical-Resistant Made-to-Order Round Belts

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

Adjustable-Length Round Belting

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

Extended-Life Leather Round Belting

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

Extended-Life Leather Round Belting Connectors

Use with a joining tool to connect two ends of leather belting.

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.

Quick-Connect Hollow-Core Round Belting Connectors

Press these connectors into quick-connect hollow-core round belting to join the ends.

Textured Round Belting

The textured surface improves gripping ability.

Round Belting Connectors

Join solid-core round belting by trimming belting ends to a point and twisting them into the threaded ends of these connectors.

Round Belting

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

Ultra-Flexible Round Belting

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

Ultra-Flexible Round Belting Connectors

Thread a connector onto each end of belting and hook together to join.

Flat Belts

Flat Belting

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

Abrasion-Resistant Made-to-Order Flat Belts

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

Made-to-Order Flat Belts

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

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.