CSB filement wound bearings use continuous fiberglass filaments incorporated into a proprietary epoxy resin matrix for a very high strength bearing that is naturally concentric with no seam or overlap. This structure not only has high strength anti-friction bearings of the main characteristics and permanently without oil. The resulting bearing exhibits a very low coefficient of friction coupled with high load bearing capacity.
Filement Wound Bearing Design The back material of CRB series material is high strength glass fiber with epoxy resin and the lubricating layer of it is PTFE wound fiber or special lubricating fiber. Therefore, this special structure performs an outstanding anti-wear feature and low friction coefficient under high load and low speed condition. Furthermore, this absolutely new idea gives better solution for high load and excellent wear resistance possibility.
A True Self-lubrication Bearing
CSB filement wound bearings not only exhibit excellent load capacities, low frictional values and resistance to corrosion, they also allow for true self-lubrication.CSB recommended that the bearings is used in a completely oil-free condition forever.
Filement Wound Bearing Break-in and Film Transfer The Filement Wound Bearing’s high load greaseless operation is the use of uniquely woven PTFE super-filaments in the bearing liner. They exhibit tensile strengths twenty times greater than PTFE resins and are not subject to cold flow under high load. No secondary lubrication is necessary due to the film transfer process, even during start-up. As the bearing begins service, the liner’s PTFE undergoes a phase change and disburses over the mating pin surface, transferring from the inner diameter to the pin's wear surface and smoothing out any macroscopic surface imperfections. Essentially, a small amount of the liner is worn away and sacrificed to coat the pin with a low friction PTFE film. This wear is often negligible, usually less than 0.03mm.