This Bearing Has Two Rubber Seals (2RS), Connected to the Inner Ring to Protect the Bearing from Dust or any Possible Contamination. Bearing is Pre-Lubricated with High-Quality Grease ideal for use in High and Low-temperature settings (-30C to +180C) If your Application Requires a Ball Bearing with One Shield or Opened Without Shields, you can easily remove one or both Shields. - Specification: Item 6205-2RS, Series 6200, Inner Diameter 25.00 mm, Outside Diameter 52.00 mm, Width 15.00 mm, Dynamic Load Rating Cr 14800 N, Static Load Rating Cor 7800 N, Limiting Speed 8500 r/min, Clearance Normal, Tolerance Inner Ring 0 to -8 μm, Tolerance Outer Ring 0 to -11 μm, Tolerance Classes P6, Noise and Vibration Z3V3, Closures Two Rubber Seals (2RS), Lubrication Type Grease Chevron, Lubrication Temperature -30°C to +180°C, Rolling Element Indicator Ball, Material Gcr15, Product Weight 0.130 KG.