An XR Roller is a specialized type of roller designed to follow the curvature of a cam or track and to translate or communicate machine motion or load. PCI “XR” Rollers are an innovative approach to Cam Follower replacements by offering the balanced load and rubber seals of a Track Roller in the sizing of a Traditional Needle Bearing Cam follower. PCI “XR” Rollers featuring ∞Infinity Roller™ Technology give you unparalleled Thrust Load capacity and sealing in sizing that allows for easy replacement of failing Cam Follower products. The “XR” Roller is yet another innovation in our line of Load Bearing Roller Assemblies, giving you the maximum number of choices for your solution.
Feature & Benefit Sell Sheets
Stud Type Concentric
Stud Type XR Rollers provide efficient cantilever mounting. The hex socket in the integral stud provides additional installation torque for use with self-locking nuts and blind hole mounting.
Stud Type Eccentric
Eccentric Stud XR Rollers provide a means of precision positioning between the roller and the track or rail surface. This feature allows for adjustment to provide uniform loading amongst mounted rollers.
Roller Body Profiles
Plain XR Rollers
Plain/Cylindrical XR Rollers effectively carry radial loads. For heavy side loads, Plain XR Rollers can be positioned vertically to act as side guides.
Crowned XR Rollers
Crowned XR Rollers have a spherical body profile and are used to reduce the effects of misalignment by better distributing load over the body and internal bearing elements. Crowned rollers are also used in rotary applications to minimize scrubbing or skidding.