• NX12-Z | NX12Z• Inner dimension: 12, Outer dimension: 21, Width: 18, Weight: 0,024, EAN: 7316570660050, Material: Standard bearing steel, Cage: Sheet steel cage, Temperature range: -20 to +120 °C, Tolerance class: Tolerance class P0/PN2 / ABEC 1, Version: Self-retaining, Operating direction: Single direction bearing, Lubrication: For grease lubrication