Timken National Oil Seal 417278

Description:

The Timken National 417278 oil seal is a radial shaft oil seal designed to retain lubricants and prevent contaminants from entering rotating equipment. It is commonly used in industrial gearboxes, pumps, electric motors, conveyors, compressors, and other power transmission systems where dependable shaft sealing is essential. Its spring-loaded multi-lip design minimizes lubricant leakage, extends bearing life, and helps reduce maintenance requirements.

Applications:

The Timken National 417278 is intended for general-purpose industrial shaft sealing applications. Its nitrile rubber sealing element and Type 41 multi-lip construction provide reliable sealing against oil leakage while excluding dirt, dust, and moisture. It is suitable for industrial machinery, manufacturing equipment, pumps, reducers, conveyors, and electric motors operating under normal industrial conditions.

Technical Specifications:

• Manufacturer Part Number (MPN): 417278
• Manufacturer: Timken National
• Product Type: Industrial radial shaft oil seal
• Seal Type: Type 41
• Series: 410000
• Lip Configuration: Multi-lip with spring
• Lip Material: Nitrile (NBR)
• Shaft Diameter: 5.000 in (127.000 mm)
• Outside Diameter: 6.381 in (162.077 mm)
• Housing Bore: 6.375 in (161.925 mm)
• Overall Width: 0.500 in (12.700 mm)
• Case Construction: Steel case 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
• Pressure Rating: 7 psi
• Operating Temperature Range: -40°F to 225°F (-40°C to 107°C)

Common Replacements:

• SKF 50130
• CR 417278
• National 417278