Sheave Operation Pulling Working Load Limit 6 600 lb Compatible Rope Diameter 5/16 in Compatible Shaft Diameter 3/8 in Bearing Type Sleeve Inside Diameter 2 1/2 in Outside Diameter 3 in Number of Grooves 1 Compatible Rope Type Wire Rope Bearing Seal Type Not Applicable Material Thermoplastic Overall Depth 3/4 in Finish Plain