Timken National Oil Seal 471887

Description:

The Timken National Oil Seal 471887 is a multi-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, agricultural equipment, and power transmission machinery 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 471887 is used in rotating equipment where reliable shaft sealing is essential for protecting bearings and lubricated components. It is widely applied in industrial gearboxes, pumps, electric motors, conveyor systems, manufacturing equipment, agricultural machinery, and general power transmission systems to reduce lubricant leakage, prevent contaminant ingress, and maintain dependable equipment operation.

Technical Specifications:

• Manufacturer Part Number (MPN): 471887
• Manufacturer: Timken
• Brand: National
• Product Type: Oil Seal
• Series: 470000
• Seal Type: Double Lip with Spring
• Design Type: Type 47
• Material: Nitrile (NBR)
• Lip Material: Nitrile Rubber (NBR)
• Construction: Steel Case Without Inner Case
• Redi-Coat: Yes
• Measurement System: Inch
• Shaft Diameter (ID): 2.437 in (61.90 mm)
• Outside Diameter (OD): 3.130 in (79.50 mm)
• Housing Bore: 3.125 in (79.38 mm)
• Overall Width: 0.375 in (9.525 mm)
• Maximum Shaft Surface Speed: 3000 ft/min
• Pressure Rating: 7 psi
• 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)
• Weight: 0.13 lb (0.06 kg)
• Typical Applications: General Purpose Rotating Equipment

Common Replacements:

• SKF Equivalent Oil Seal
• CR (Chicago Rawhide) Equivalent Oil Seal
• National 470000 Series Oil Seal