Belt Tensioners | McMaster-Carr

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System of Measurement

Shaft Diameter

1/32" to 11/32"

1/32" to 15/32"

1/32" to 17/32"

1/32" to 19/32"

1/32" to 21/32"

1/32" to 11/16"

1/32" to 13/16"

1/32" to 1 3/32"

For Maximum Belt Width

Roller Chain Trade Number

Material

Stainless Steel

OD

Belt Trade Size

For Idler ID

Strand Type

Mounting Position

Tension Force

5 lbf to 30 lbf

7 lbf to 13 lbf

13 lbf to 19 lbf

13 lbf to 29 lbf

15 lbf to 40 lbf

20 lbf to 60 lbf

Number of Teeth

Width

Pitch

Belt Width

ID

Bore Type

Number of Grooves

Pulley Type

Shaft Type

Thread Size

RoHS

U.S.–Mexico–Canada Agreement (USMCA) Qualifying

REACH

Export Control Classification Number (ECCN)

DFARS Specialty Metals

How can we improve?

2,133 Products

Power Transmission

Chain and Belt Tensioners

Chain and Belt Tensioners

Control tension on your roller chain or belt for smooth operation and a long service life

Flat Belt Idler Pulleys

Flat Belt Idler Pulleys

Spin freely on built-in bearings to reduce wear and vibration on flat belts

Timing Belt Idler Pulleys

Timing Belt Idler Pulleys

Add to your timing belt setup to minimize vibration and keep belts from wearing out

Timing Belt Drive Pulleys

Timing Belt Drive Pulleys

Pair with a timing belt to keep your drive system in sync

V-Belt Idler Pulleys

V-Belt Idler Pulleys

Spin freely on built-in bearings to reduce wear and vibration on V-belts

Flat Belt Drive Pulleys

Flat Belt Drive Pulleys

Pair with a flat belt to transfer motion from a rotating shaft

V-Belt Drive Pulleys

V-Belt Drive Pulleys

Pair with a V-belt to transfer motion from a rotating shaft

Round Belt Idler Pulleys

Round Belt Idler Pulleys

Spin freely on built-in bearings to reduce wear and vibration on round belts

Round Belt Drive Pulleys

Round Belt Drive Pulleys

Mount directly onto a shaft and pair with round belts to transmit rotary motion and torque

Timing Belt Pulley Stock

Timing Belt Pulley Stock

Machine your own timing belt pulleys to fit an exact width and shaft diameter

Spur Gear Stock

Spur Gear Stock

Machine your own gears to an exact face width and shaft diameter

Material Handling

Conveyor Belt Take-Up Frames

Conveyor Belt Take-Up Frames

Adjust the tension on conveyor belts by extending or retracting pulleys

Conveyor Belt Take-Up Bearings

Conveyor Belt Take-Up Bearings

Use with take-up frames to adjust tension on conveyor belts

The quick brown fox jumped over the lazy dog. Pedestal (35" Ht. x 4" Wd. x 4" Dp.)