Sheave Operation Pulling Working Load Limit 3 300 lb Compatible Rope Diameter 9/16 in Compatible Shaft Diameter 1/2 in Bearing Type Sleeve Inside Diameter 1/2 in Outside Diameter 2 7/8 in Number of Grooves 1 Compatible Rope Type Fibrous Rope Bearing Seal Type Not Applicable Material Thermoplastic Overall Depth 27/32 in Finish Plain