Variable Pitch 1VP71 Pulley 3/4" 100B23 Sprockets 100A20 sprockets with a stock

100A20 sprockets with a stock bore comes with a 1-1/4" inside diameter plain hole and can be easily machine bored to custom sizes

This 1C160SF Sheave uses a SF QD bushing

For more information on a twelve groove 128V2120N sheave

Our superior 12B A2 attachment connecting link is designed explicitly for metric 19

Variable Pitch 1VP71 Pulley 3/4" 100B23 Sprockets 100A20 sprockets with a stockVariable Pitch 1VP71 Pulley 3 4" is designed and engineered in a way that allows for precise adjustments in diameter, which will also correlate to speed adjustment. Our single groove variable pitch pulleys are manufactured with extremely tight thread tolerances and use a high quality cast iron material. They are extremely well balanced to reduce vibrations and are phosphated and painted for corrosion resistance. Besides 1VP71 pulleys with a 3 4" bore