Cam Follower, Closure Double Sealed, Drive Type Hex Socket, Duty Type Heavy, Face Design Hex Socket, Overall Length 4 9/32 in, Roller Diameter 3 1/4 in, Roller Head Type Crowned, Roller Material Alloy Steel, Roller Width 1 3/4 in, Rolling Element Rows 2, Seal Type Contact, Stud Material Carbon Steel, Stud Thread Size 1 1/4 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