OS Metric Series Single-Lip Shaft Seal 30 mm ID x 37 mm OD x 4 mm Width - Rubber/Steel Oil Seal for Automotive, Transmission, Engine, Hydraulic and Pneumatic Equipment, fits sealed bearing housings

Single metric single-lip shaft oil seal, 30×37×4 mm
✔️ 30 mm ID, 37 mm OD, 4 mm width; Rubber/Steel, OS series

This single rubber/steel single-lip shaft oil seal from the OS Metric Series keeps lubricant in and contamination out for engines, transmissions, hydraulic pumps, pneumatic gearboxes and sealed ball bearing housings.

✅ Single lip seal type for low to moderate pressure applications
✅ Inner diameter 30 mm, outer diameter 37 mm, width 4 mm
✅ Rubber sealing lip with steel case for strong retention and wear resistance
✅ Ideal for engine shafts, transmission outputs, hydraulic and pneumatic assemblies
✅ Compatible with sealed ball bearing housings and linear slide unit setups

💡 What is a shaft oil seal used for in automotive and industrial equipment? A shaft oil seal prevents lubricant loss and blocks dirt, water and debris from reaching bearings and rotating parts. Quick intro to benefits: - Protects bearings, sealed ball bearing housings and shafts from contamination - Retains oil and grease in engines, transmissions, hydraulic pumps and linear slide units - Lowers friction and wear, reducing downtime and maintenance needs