The Timken Company 5168 Radial Shaft Oil Seal

Description:

The Timken National Oil Seal 5168 is a multi-lip, spring-loaded radial shaft oil seal kit designed to retain lubricants while preventing dirt, moisture, and other contaminants from entering rotating shaft systems. Manufactured with a nitrile (NBR) sealing element and a steel case, it provides reliable sealing performance in industrial gearboxes, pumps, electric motors, conveyors, agricultural equipment, and general power transmission machinery. It is commonly used by OEMs and maintenance professionals for equipment replacement, rebuilds, and preventive maintenance.

Applications:

The Timken National Oil Seal 5168 is intended for general-purpose rotary shaft sealing in oil- and grease-lubricated equipment. Its multi-lip, spring-loaded design helps retain lubricants while excluding contaminants, making it suitable for industrial gearboxes, electric motors, pumps, compressors, conveyor systems, agricultural machinery, and other rotating equipment operating in demanding environments.

Technical Specifications:

• Manufacturer Part Number (MPN): 5168
• Manufacturer: Timken
• Brand: National
• Product Type: Oil Seal Kit
• Seal Series: 5000 Series
• Seal Type: Multi-Lip with Spring (Type 41)
• Material: Nitrile Rubber (NBR)
• Lip Material: Nitrile (NBR)
• Case Construction: Steel Case
• Redi-Coat: Yes
• Measurement System: Inch
• Shaft Diameter (ID): 1.062 in (26.975 mm)
• Outside Diameter (OD): 2.129 in (54.077 mm)
• Housing Bore: 2.125 in (53.975 mm)
• Overall Width: 0.625 in (15.875 mm)
• Lip Type: Multi-Lip with Spring
• Construction: Solid
• Weight: Approximately 0.17 lb (0.077 kg)
• Typical Applications: Industrial Gearboxes, Electric Motors, Pumps, Compressors, Conveyors, Agricultural Equipment, Power Transmission Machinery.

Common Replacements:

• SKF Equivalent Oil Seal
• CR (Chicago Rawhide) Equivalent Oil Seal
• National 5000 Series Oil Seal Kit