• UK55 .A16.1/1 | UK55.A16.1/1• Inner dimension: 55, Outer dimension: 90, Width: 22, Weight: 0,55, Ball rows: Double row bearing, Material: Standard bearing steel, Seal: None, open bearing, Cage: Without cage with separating balls, Temperature range: -20 to +120 °C, Contact angle: 16 degree, Tolerance class inner ring: More accurate than P5 or ABEC 5, Tolerance class outer ring: More accurate than P5 or ABEC 5