• BEM20-60-502 Classic Line | BEM2060502ClassicLine• Inner dimension: 20, Outer dimension: 40, Width: 25, Weight: 0,327, Lubrication hole: Without lubrication groove, Maintenance: Maintenance-free version, Thread type: Male thread, Thread direction: Left-hand thread, Seal: None, open bearing, Version: PTFE/Steel (stainless)