Experience superior performance with this premium 6805 2RS hybrid ceramic ball bearing. Featuring a precision-engineered design with a 25mm inner diameter, 37mm outer diameter, and 7mm width, this bearing combines chrome steel rings with advanced ceramic balls for outstanding durability and smooth operation. The black silicon nitride ceramic balls provide excellent wear resistance and reduced friction, while the nylon cage ensures optimal ball spacing and movement. Both sides are protected by distinctive red rubber seals that effectively keep lubricant in and contaminants out. Pre-lubricated with high-quality grease, this bearing is ideal for high-speed applications, particularly in bicycle components where reliability is crucial. The thin profile and miniature design make it perfect for applications where space is at a premium, while still maintaining exceptional load-bearing capabilities. This bearing delivers consistent performance and extended service life in demanding conditions.