This bearing has Shield on both sides, Non-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 (-20C to +160C). If your Application Requires a Ball Bearing with One Shield or Opened Without Shields, you can easily remove one or both Shields. - Specification: Item 6204-ZZ, Bearing Type 6200, Bore Diameter 20.00 mm, Outside Diameter 47.00 mm, Width 14.00 mm, Dynamic Load Rating Cr 13500 N, Static Load Rating Cor 6550 N, Limiting Speed 17000 r/min, Clearance Normal, Tolerance Inner Ring 0 to -10 μm, Tolerance Outer Ring 0 to -11 μm, Tolerance Classes P0, Noise and Vibration Z1V1, Closures Shield on both sides, Lubrication Type Grease Shell RL2, Lubrication Temperature -20°C to +160°C, Rolling Element Indicator Ball, Material Gcr15, Product Weight 0.110 KG.