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 Low-temperature settings (-40C to +120C). - Specification: Item 6004-2RS-LT, Series 6000, Inner Diameter 20.00 mm, Outside Diameter 42.00 mm, Width 12.00 mm, Dynamic Load Rating Cr 9950 N, Static Load Rating Cor 5000 N, Limiting Speed 11000 r/min, Clearance Normal, Tolerance Inner Ring 0 to -8 μm, Tolerance Outer Ring 0 to -9 μm, Tolerance Classes P6, Noise and Vibration Z3V3, Closures Two Rubber Seals (2RS), Lubrication Type Grease Chevron, Lubrication Temperature -40°C to +180°C, Rolling Element Indicator Ball, Material Gcr15, Product Weight 0.069 KG.