Variable Speed Pulleys
Torque Transmission's Variable Speed Pulleys provide the reliable variable speed service you require. Speed range is infinitely variable within standard ratio limits. All of our variable speed pulleys are spring-loaded and color-coded to indicate spring pressure - easy to identify and use.
Torque Transmission has released their newly redesigned Variable Speed Pulleys with standard bores ranging from 1/4" to 3/4" in both hex and round shaft designs. These pulleys combine the cost savings and strength of glass reinforced nylon and steel hubs with the wear resistance of steel-clad flanges. Designed for belt sizes from 1/4" V to 5/8" V and horsepower ratings from 1/12 HP to 1.0 HP, they are engineered to offer an economical alternative for many applications that may not require the expense of AC/DC variable speed motors and drives. Simple belt tensioning adjustments allows for speed changes from 2.25:1 up to 2.8:1. - Economical
- Lightweight
- Strong
- Quiet
- Infinite speed range - within pulley's ratio limits
We also offer Precision Variable Speed Pulleys featuring close tolerances on round shaft, molded keyway, and precisely ground and polished shafts and a variety of spring pressures ranging from 6 pounds to 82 pounds, depending upon the model. Standard variable speed pulley sizes and types, dimensions and spring pressures are listed below. | 
