Adjustable Pitch Sheave; Outer Diameter 2.5 Inch; Bore Size 5/8 Inch; Hub Width 1-1/2 Inch; Rim Width 19/32 to 27/32 Inch; Material Class 30 Gray Cast Iron; Pitch Diameter 1.85 to 2.65 Inch 3L Belt, 1.85 to 2.45 Inch 4L/A Belt, 2.25 to 2.45 Inch 5L/B Belt; Keyseat Size 3/16 Inch x 3/32 Inch; Application HVAC