6004-2RSNR Ball Bearing with a Snap Ring20mm x 42mm x 12mmOne Bearing 6004-2RSNR Ball Bearings with a Snap Ring. the inner diameter is 20mm outer diameter is 42mm and the width is 12mm. The bearing has 2 Rubber Seals to protect the bearing from dust or any possible contamination also bearing is pre-lubricated with grease. Item: 6004-2RSNR Ball Bearing with a Snap RingType: Deep Groove Ball BearingClosures: 2 Rubber Seals Lubrication: Self Lubricated (Grease) Size: 20mm x 42mm x 12mmInner Diameter: 20mmOuter Diameter: 42mmWidth: 12mmQuantity: One BearingDynamic load rating Cr: 9400 NStatic load rating Cor: 5050 NLimiting Speed: Grease Lubrication: 10000 RPM