Timken 450078

Description:

The Timken 450078 is a small bore inch 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 450078 oil seal is used in rotating equipment where dependable shaft sealing is essential for protecting bearings and lubricated components. It is widely applied in industrial gearboxes, pumps, electric motors, conveyor systems, mining equipment, construction machinery, and heavy-duty vehicle drivetrains to minimize lubricant leakage, prevent contaminant ingress, and maintain reliable equipment operation.

Technical Specifications:

• Manufacturer Part Number (MPN): 450078
• Manufacturer: Timken
• Brand: National
• Product Type: Small Bore Inch Oil Seal
• Series: 450000
• Seal Type: Type 45
• Lip Type: Single Lip with Spring
• Material: Nitrile (NBR)
• Measurement System: Inch
• Shaft Diameter: 1.625 in (41.275 mm)
• Outside Diameter: 2.879 in (73.127 mm)
• Housing Bore: 2.875 in (73.025 mm)
• Overall Width: 0.468 in (11.887 mm)
• Construction: Solid with Inner Case
• Redi-Coat: Yes
• 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 Type 45 Oil Seal