NTN NS4739 Wheel Bearing Seal

The NTN NS4739 is a premium quality wheel bearing seal designed and manufactured to meet OEM standards for reliable wheel-end sealing performance. This seal provides critical protection for wheel bearings by keeping lubricants contained while preventing contaminants from entering the bearing assembly.

Key Features:

• Advanced multi-lip sealing design for optimal leak and contaminant protection
• Constructed with rugged materials including PTFE and Viton for superior durability
• Springless design with multi-contact seal lips that maintain continuous lubrication
• Wide temperature range capability from -40°F to 225°F (-40°C to 107°C)
• Low seal swell reduces torque and improves efficiency
• Excellent resistance to hydrocarbon fluids and aging

Specifications:

• Inside Diameter (Shaft): 2.000 inches (50.80mm)
• Outside Diameter (Housing Bore): 2.565 inches (65.15mm)
• Width: 0.250 inches (6.35mm)
• Material: Nitrile rubber with Redicoat finish

NTN wheel bearing seals utilize modern sealing design principles to deliver quality and reliable performance for wheel-end repairs. Sold individually. Cross-reference part numbers include National 4739, S4739, and P4739.