Timken National Oil Seal 450446

Description:

The Timken National Oil Seal 450446 is a single-lip oil seal designed to retain lubricants and prevent dirt, moisture, and other 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 improve sealing performance and extend component service life.

Applications:

The Timken National Oil Seal 450446 is used in rotating equipment where reliable shaft sealing is essential to protect bearings and lubricated components. It is widely applied in industrial gearboxes, conveyor systems, pumps, electric motors, construction equipment, mining machinery, and heavy-duty vehicle drivetrains to reduce lubricant leakage, prevent contaminant ingress, and maintain dependable equipment operation.

Technical Specifications:

• Manufacturer Part Number (MPN): 450446
• Manufacturer: Timken
• Brand: National
• Product Type: Oil Seal
• Series: 450000
• Seal Type: Single Lip with Spring
• Design Type: Type 45
• Material: Nitrile (NBR)
• Construction: Solid with Inner Case
• Redi-Coat: Yes
• Measurement System: Inch
• Shaft Diameter: 2.000 in (50.80 mm)
• Outside Diameter: 2.717 in (69.01 mm)
• Housing Bore: 2.713 in (68.91 mm)
• Overall Width: 0.468 in (11.89 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