5310-2RS Double Row Angular Ball Bearing, rubber Sealed, Double Row Angular ******* ball bearing has two rows of balls that are arranged in a back-to-back configuration.Double Row Angular ******* ball bearings may offer some economic benefits as well as handling and mounting benefits versus pairs of Single Row Angular ******* ball bearings Item: 5310-2RS Ball Bearing Type: Double Row Angular Sealed Ball Bearing Closures: 2 Rubber Seals Dimensions: 55mm X 110mm X 44.5mm/Metric ID (inner diameter)/Bore: 55mm OD (outer diameter): 110mm Width/Height/thickness: 44.5mm Size: 55 X 110 X44.5 Quantity: One Bearing Dynamic load rating Cr: 85,200 N Static load rating Cor: 64,000 N Limiting Speed: Grease Lubrication: 4,000 RPM Oil Lubrication: 5,000 RPM