Track Roller Closure Open Drive Type None Duty Type Heavy Face Design Plain Overall Length 4 9/16 in Roller Diameter 3 in Roller Head Type Flat Roller Material Alloy Steel Roller Width 2 in Rolling Element Rows 1 Seal Type Not Applicable Stud Material Alloy Steel Stud Thread Size 1 1/4 In.-12 Stud Type Eccentric System of Measurement Inch Bearing Material Alloy Steel Bearing Material Grade AISI 52100 Bearing Type Tapered Roller Drive Location Stud