Adjustable Pitch Sheave; Outer Diameter 3.15 Inch; Bore Size 3/4 Inch; Hub Width 1-11/16 Inch; Rim Width 23/32 to 1-5/64 Inch; Material Class 30 Gray Cast Iron; Pitch Diameter 1.95 to 2.75 Inch 3L Belt, 2.15 to 3.15 Inch 4L/A Belt, 2.65 to 3.45 Inch 5L/B Belt; Keyseat Size 3/16 Inch x 3/32 Inch; Application HVAC