Double-Lip DS Metric Oil Seal 30 mm ID x 40 mm OD x 4 mm Width Rubber/Steel, DS30404 Single Unit for Linear Slides, Sealed Ball Bearing and Rotary Shaft Protection

Single DS30404 double-lip oil seal, 30x40x4 mm
✔️ Rubber/steel construction, double lip, 30 mm ID x 40 mm OD x 4 mm width

This single double-lip oil seal protects shafts and bearings in linear slide units, sealed ball bearing assemblies and rotary shafts where contamination control and lubrication retention matter.

✅ Model: DS30404, DS metric series
✅ Dimensions: 30 mm ID x 40 mm OD x 4 mm width
✅ Material: rubber lip with steel case for reliable sealing
✅ Application: protects sealed ball bearing and linear slide unit setups

💡 What is an oil seal used for in linear slide units and sealed ball bearing systems? It keeps lubricant in and keeps dirt out so bearings and shafts run longer and cleaner. Quick intro on why this is handy: - Protects sealed ball bearing contacts and extends service life - Retains grease inside linear slide unit assemblies and rotary shafts - Works with rubber/steel lip designs and many ceramic bearing setups