Cam Follower Closure Open Drive Type Hex Socket Duty Type Standard Face Design Hex Socket Overall Length 5 25/32 in Roller Diameter 4 in Roller Head Type Flat Roller Material Alloy Steel Roller Width 2 1/4 in Rolling Element Rows 1 Seal Type Not Applicable Stud Material Carbon Steel Stud Thread Size 1 1/2 In.-12 Stud Type Concentric System of Measurement Inch Bearing Material Alloy Steel Bearing Material Grade AISI 52100 Bearing Type Needle Roller Drive Location Stud