Track Roller Closure Open Drive Type None Duty Type Heavy Face Design Plain Overall Length 1 27/32 in Roller Diameter 1 1/8 in Roller Head Type Flat Roller Material Alloy Steel Roller Width 25/32 in Rolling Element Rows 1 Seal Type Not Applicable Stud Material Alloy Steel Stud Thread Size 7/16 In.-20 Stud Type Concentric System of Measurement Inch Bearing Material Alloy Steel Bearing Material Grade AISI 52100 Drive Location Stud Dynamic Radial Load Capacity 630 lbf