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V-Belt Adjustable and Variable Speed Drives | TB Wood's

Adjustable Speed Sheaves are designed to allow changes to driven shaft speed where drive motor speed is fixed.

Variable Speed Sheaves are designed for use in applications where drive motor speed is increased or decreased frequently to accommodate varying process conditions.

California Proposition 65 Warning: This product contains chemicals known to the State of California to cause cancer and/or birth defects or other reproductive harm.

Product Features

Adjustable Speed Sheaves

Four types available
Wide range of sizes and groove counts
Machined from annealed cast iron
Exclusive, patented locking collars clamp all movable parts securely in place
Accurately balanced to assure smooth operation and long life
Eliminates freezing and sticking from fretting corrosion
Fits standard NEMA motor specifications
Datum diameter adjusted by loosening set screw(s) in the hubs
For use with standard or high capacity V-belts
No Lubrication required
Won’t freeze or stick

Variable Speed Sheaves

Allows smooth, infinitely variable speed changes without stopping the drive motor
Fits standard NEMA motor specifications for most applications
For use with wide range variable speed belts
Five types available
Wide range of sizes and groove counts
Lightweight aluminum or rugged cast iron construction
Datum diameter adjusted by loosening hub set screw(s)
Maintenance-free design
Won’t freeze or stick