Double-lip radial shaft seal DS metric series single pack 20 mm ID x 27 mm OD x 4 mm width rubber lip on steel case for sealed ball bearings, linear slide units, rotary shafts DS20274

Single pack double-lip radial shaft seal 20x27x4 mm
✔️ 20 mm ID x 27 mm OD x 4 mm width; rubber lip, steel case, single pack

This radial double-lip shaft seal keeps lubricants in and keeps grit out on rotary shafts and sealed ball bearings, commonly used in linear slide units, gearboxes, pumps, and motors.

✅ 20 mm inner diameter (ID)
✅ 27 mm outer diameter (OD)
✅ 4 mm width (thickness)
✅ Rubber sealing lip on steel case
✅ DS metric series part number DS20274
✅ Single pack oil/shaft seal for bearings and slides

💡 How do double-lip radial shaft seals protect sealed ball bearings and linear slide units? They form a tight barrier that holds lubrication in while keeping dirt, water, and dust out. - Keeps lubricant around bearings to reduce wear and help sealed ball bearing longevity and smooth operation. - Stops contaminants from entering linear slide units and rotary shafts for reliable motion and less maintenance. - Rubber lip backed by a steel case handles shaft misalignment and is handy for common repair and rebuild jobs.