• EFN50-30-502 Classic Line | EFN5030502ClassicLine• Inner dimension: 50, Outer dimension: 112, Width: 35, Weight: 3,5, Lubrication hole: With lubrication groove, Thread direction: Left-hand thread, Thread type: Female thread, Maintenance: Maintenance-free version, Version: PTFE/Steel, Seal: Lip seal on both sides