Timken National Oil Seal 450776

Description:

The Timken National Oil Seal 450776 is a single-lip nitrile oil seal designed to retain lubricants and prevent contaminants from entering rotating shaft systems. It is commonly installed in industrial gearboxes, pumps, electric motors, conveyor systems, heavy-duty vehicle axles, and power transmission equipment operating in demanding environments. Maintenance teams, OEMs, and industrial repair specialists use this oil seal for equipment replacement, rebuilds, retrofits, and preventive maintenance to help extend component life and reduce lubricant leakage.

Applications:

The Timken National Oil Seal 450776 is used in rotating equipment where effective sealing is essential to protect bearings and shafts from dirt, moisture, and lubricant loss. It is widely applied in industrial gearboxes, pumps, electric motors, conveyor systems, construction equipment, mining machinery, and heavy-duty truck axles where reliable sealing performance helps improve equipment longevity and operational efficiency.

Technical Specifications:

• Manufacturer Part Number (MPN): 450776
• Manufacturer: Timken
• Brand: National
• Product Type: Oil Seal
• Series: 450000
• Seal Type: Single Lip with Spring
• Design Type: 45
• Lip Material: Nitrile (NBR)
• Construction: Solid with Inner Case
• Shaft Diameter: 1.375 in (34.93 mm)
• Outside Diameter: 2.690 in (68.33 mm)
• Housing Bore: 2.686 in (68.22 mm)
• Overall Width: 0.500 in (12.70 mm)
• Maximum Shaft Surface Speed: 3000 ft/min
• Misalignment Tolerance: 0.015 in at 800 rpm; 0.010 in at 4200 rpm
• Continuous Operating Temperature: -40°F to 225°F (-40°C to 107°C)
• Typical Applications: General Purpose Rotating Equipment

Common Replacements:

• SKF Equivalent Oil Seal
• CR (Chicago Rawhide) Equivalent Oil Seal
• National 450000 Series Oil Seal