• B71904-C-T-P4S-UM | B71904CTP4SUM• Inner dimension: 20, Outer dimension: 37, Width: 9, Weight: 0,037, EAN: 4026677435378, Material of rolling elements: Standard bearing steel, Temperature range: -30 to +100 °C, Tolerance class: Dimensional accuracy P4 or ABEC 7, running accuracy P2 or AB, Arrangement: Single universal bearing, Ball rows: Single row bearing, Preload: Medium preload, Lubrication: Preserved, Seal: None, open bearing, Cage: Polyamide cage, Contact angle: 15 degree, Material: Standard bearing steel, Lubrication hole: Without lubrication groove