6.00" Outside Diameter Single Groove Cast Iron Sheave with 5/8" Fixed Bore, 4.2-5.2 Variable Pitch for use with 4L, 5L, A, and B Belts

4.75" Outside Diameter Single Groove Cast Iron Sheave with 7/8" Fixed Bore, 3.4-4.4 Variable Pitch for use with 4L and A Belts and 3.7-4.7 Variable Pitch for 5L and B Belts

5.95" Outside Diameter Single Groove Cast Iron Sheave with 7/8" Fixed Bore, 4.6-5.6 Variable Pitch for use with 4L and A Belts and 4.9-5.9 Variable Pitch for 5L and B Belts

4.75" Outside Diameter Single Groove Cast Iron Sheave with 5/8" Fixed Bore, 3.4-4.4 Variable Pitch for use with 4L and A Belts and 3.7-4.7 Variable Pitch for 5L and B Belts

Sheave - Adjustable