Timken National Oil Seal 42763

Description:

The Timken National 42763 oil seal is a springless single-lip radial shaft seal designed to retain grease and prevent contaminants from entering rotating equipment. It is commonly used in wheel hubs, agricultural equipment, trailers, industrial machinery, and other applications where grease retention is the primary sealing requirement. Its Type 4S construction provides dependable sealing performance while helping extend bearing life.

Applications:

The Timken National 42763 is intended for general-purpose grease retention applications. Its nitrile rubber sealing lip and Type 4S springless design provide reliable sealing against dirt, dust, and moisture in wheel bearings, hubs, axles, and other rotating assemblies operating under normal service conditions.

Technical Specifications:

• Manufacturer Part Number (MPN): 42763
• Manufacturer: Timken National
• Product Type: Industrial radial shaft oil seal
• Seal Type: Type 4S
• Series: 40000
• Lip Configuration: Single lip without spring
• Lip Material: Nitrile (NBR)
• Shaft Diameter: 1.375 in (34.925 mm)
• Outside Diameter: 2.286 in (58.064 mm)
• Housing Bore: 2.282 in (57.963 mm)
• Overall Width: 0.250 in (6.350 mm)
• Case Construction: Solid steel case
• Maximum Shaft Surface Speed: 2000 ft/min
• Misalignment Tolerance: 0.005 in
• Typical Application: General-purpose grease retention
• Operating Temperature Range: -40°F to 225°F (-40°C to 107°C)

Common Replacements:

• SKF 42763
• CR 42763
• National 42763