Deep groove ball bearings 623..-2RSR, main dimensions to DIN 625-1, lip seals on both sides: Also known as: 0596798750000, Weight and Dimensions Inner (d) , Outer (D) MM: 52, Width (B) : 21, Weight (kg): 0.2, Product Properties: Bore: C – Cylindrical Bore, Seal: 2RS – Rubber Seal on Two Sides, Cage Type: S – Steel or Standard Cage, External Modificatio: No External Modification, Radial Internal Play: Cn Normal Internal Play, Precision: Standard Precision, Lubrication: Standard Lubrication, Heat Stabilization: No Heat Stabilization – Temperatures up to 120 °C, Special Treatment: No Special Treatment, EAN: 4 012802 331165.