Timken National Oil Seal 455249

Description:

The Timken National Oil Seal 455249 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 455249 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 industrial equipment to reduce lubricant leakage, prevent contaminant ingress, and maintain reliable equipment operation.

Technical Specifications:

• Manufacturer Part Number (MPN): 455249
• Manufacturer: Timken
• Brand: National
• Product Type: Oil Seal
• Series: 450000
• Seal Type: Single Lip with Spring
• Design Type: Type 45
• Material: Nitrile (NBR)
• Lip Material: Nitrile
• Construction: Steel Case with Inner Case
• Redi-Coat: Yes
• Measurement System: Inch
• Shaft Diameter (ID): 3.375 in (85.725 mm)
• Outside Diameter (OD): 4.693 in (119.202 mm)
• Housing Bore: 4.688 in (119.075 mm)
• 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
• Pressure Rating: 7 psi
• Continuous Operating Temperature: -40°F to 225°F (-40°C to 107°C)
• Weight: 0.391 lb (0.177 kg)
• Typical Applications: General Purpose Rotating Equipment

Common Replacements:

• SKF 33807
• CR (Chicago Rawhide) Equivalent Oil Seal
• National 450000 Series Oil Seal