Cam Follower, Closure Double Sealed, Drive Type Hex Socket, Duty Type Standard, Face Design Hex Socket, Overall Length 2 1/32 in, Roller Diameter 1 3/8 in, Roller Head Type Crowned, Roller Material Alloy Steel, Roller Width 3/4 in, Rolling Element Rows 1, Seal Type Contact, Stud Material Carbon Steel, Stud Thread Size 1/2 In.-20, Stud Type Concentric, System of Measurement Inch, Bearing Material Alloy Steel, Bearing Material Grade AISI 52100, Bearing Type Needle Roller, Drive Location Stud