Oilless bearing is a high-performance solid lubricating product on a high-brass base, inlaid graphite, or MoS2 solid lubricant. It broke through the general bearing to rely on the limitations of oil film lubrication. In the course of the use of friction heat through the solid lubrication and shaft friction, the formation of oil, powder coexistence of lubrication of the excellent conditions, both to protect the shaft does not wear, but also the solid lubrication characteristics of the eternal. Its hardness is twice as high as that of ordinary copper, and the wear resistance is twice as high.
oilless bushing materials consist of highly wear-resistance copper cast alloy whose sliding surfaces are evenly provided with a certain percentage of solid lubricant plugs according to work condition, high-strength copper alloy provides a high load-bearing capacity and the solid lubricant can be the formation of low friction film. Under technical dry running conditions, the bearing surface is designed with a thick running-in film which enables the solid lubricant to be transferred to the counter material at the first contact.
When choosing between sleeve bearings (also called bushings or plain bearings) and ball bearings for a given application, one must consider several factors, including longevity, friction, noise, temperature, mounting, lubrication issues, and cost and ease of installation and replacement. Each factor may be dependent on the quality of the machine in which the bearing type is used. VIIPLUS sleeve bearings offer several advantages, including lower cost, less maintenance, greatly reduce noise at low speeds, and easier installation. Sleeve bearing performance is also marked by a higher load capacity, specifically shock load resistance as a result of their greater contact zone. Assembly is simplified and longevity is increased in sleeve bearings due to a straightforward press fit that eliminates bearing or housing damage. Sleeve bearings with a conformal liner also compensate for misalignment issues and vibration damping. Additionally, low-friction plain bearings reduce housing dimensions and assembly weight and size by having a thinner profile.