OS Metric Series Single Lip Seal OS21294, 21 x 29 x 4 mm, Rubber on Steel construction, High-performance axial shaft protector, 1-piece pack for automotive and industrial

Single-lip OS Metric seal OS21294, 21 x 29 x 4 mm
✔️ ID 21 x OD 29 x Width 4 mm, Rubber/Steel, 1-piece pack

This single-lip rubber-on-steel shaft seal fits 21 x 29 x 4 mm shafts and is sold as a single piece. It’s ideal for automotive engines, transmissions, hydraulic systems, and general industrial machinery.

✅ ID: 21 mm
✅ OD: 29 mm
✅ Width: 4 mm
✅ Material: rubber with steel case
✅ Series: OS Metric Series, model OS21294
✅ Type: single-lip axial shaft seal, compatible with sealed ball bearing and linear slide unit setups

💡 What is a shaft lip seal used for in automotive and industrial systems? A lip seal keeps lubricant in and contaminants out, protecting bearings and moving parts while improving uptime. Here’s why a lip seal is handy: - Protects sealed ball bearing environments and extends bearing life - Keeps lubricant in housings, useful with linear slide unit assemblies - Compatible with steel and ceramic bearings plus common lubricants - Low-maintenance option that reduces downtime and replacement frequency