The SKF 6215 - 2RS is a deep - groove ball bearing with double - sided rubber seals. It has an inner diameter of 75mm, an outer diameter of 130mm, and a thickness of 25mm. Made of high - carbon chromium bearing steel (GCr15) with a pressed steel cage, it is suitable for harsh working conditions such as wet and dusty environments, like in food processing equipment, aquaculture machinery, shipbuilding equipment, and sewage treatment facilities. It can effectively bear radial and bidirectional axial loads, featuring excellent water - proof and dust - proof performance, low friction coefficient, and a long service life.