Sheave Operation Pulling Working Load Limit 880 lb Compatible Rope Diameter 5/16 in Compatible Shaft Diameter 1/4 in Bearing Type Not Applicable Inside Diameter 1/4 in Outside Diameter 1 1/2 in Number of Grooves 1 Compatible Rope Type Fibrous Rope Bearing Seal Type Not Applicable Material Thermoplastic Overall Depth 11/32 in Finish Plain