The Igus A500SM-4550-20 is a plastic plain bearing made out of a tribologically-optimized tribo-filament. This self-lubricating material composed of modified PTFE is designed to reduce the coefficient of friction, ensuring long-term performance in dynamic application. This bearing has flange mounts and plastic housings, and the inner and outer bushings have a length of 45.50mm, an inner diameter of 14.3mm, and an outer diameter of 21.30mm. The bearing is suitable for use in dry and damp environments, and does not require lubrication or maintenance. With its low friction, noise level and vibration, the Igus A500SM-4550-20 is a reliable choice for applications with a wide range of temperatures, high speeds and high loads.