Track Roller Closure Double Sealed Drive Type Hex Socket Duty Type Heavy Face Design Plain Overall Length 102.5 mm Roller Diameter 90 mm Roller Head Type V-Groove Roller Material Bearing Steel Roller Width 44.5 mm Rolling Element Rows 2 Stud Material Bearing Steel Stud Thread Size M24-3 Stud Type Concentric System of Measurement Metric Bearing Type Tapered Roller Drive Location Stud