OS Metric single-lip shaft seal 40 mm ID x 50 mm OD x 4 mm width rubber/steel oil-sealing replacement for sealed ball bearing assemblies, linear slide units, rotary shafts and industrial equipment

Single-piece OS metric single-lip shaft seal 40 x 50 x 4 mm
✔️ ID 40 mm, OD 50 mm, Width 4 mm, Rubber/Steel, OS Series

This single-piece single-lip oil seal is sold as one unit and designed to protect shafts, sealed ball bearing assemblies, linear slide units, and industrial rotary equipment.

✅ Single-lip design for axial sealing on rotating shafts
✅ Inner dia 40 mm, outer dia 50 mm, width 4 mm
✅ Rubber sealing lip with steel case for durability and wear resistance
✅ Fits OS Metric series; ideal for sealed ball bearing assemblies and linear slide units

💡 What is an oil seal used for in sealed ball bearing and linear slide unit applications? An oil seal keeps lubricant in and contamination out so bearings and guides run longer. - Extends life of sealed ball bearing assemblies and reduces maintenance needs. - Shields linear slide units and rotary shafts from dust, dirt, and fluid ingress. - Provides a reliable oil-sealing replacement compatible with rubber/steel seals and bearing housings.