The basic design of these products is essentially that of a conventional rolling bearing, except that they have a thick-walled outer ring. Stud type track rollers have a shaft stud at one end. In the majority of applications, the outer ring is subjected to circumferential load, i.e. the outer ring rotates while the inner ring or stud remains stationary. The thick walled outer ring prevents excessive deformation of the track roller and ensures that the rolling element set is uniformly loaded Specifications Roller diameter: 1.3750 in Roller width: 0.7500 in Stud diameter: 0.5000 in Stud length: 1.2500 in Roller shape: Flat Roller material: Chrome Steel Bearing element: Needle Rollers Stud type: Standard Closure type: Sealed Head type: Hex Head Thread size: 43862 Radial dynamic load capacity: 3930 lbs Radial static load capacity: 2300 lbs Maximum rpm: 2800 rpm Lubrication hole location: Stud Side Finish/coating: Black Oxide Series: Inch CAMROL (CF)