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National Oil Seal 480991 Single Lip Spring Loaded Oil Seal

(1975-1982 Triumph TR7; 1980-1982 Triumph TR8; 1967-1973 Triumph GT6; 1970-1973 Triumph Stag; 1972-1976 Jensen Healey)

Part of: National Oil Seal Single Lip Spring Loaded Axle Shaft Seal

Other options in this family: National Oil Seal 9568

Manufacturer

Picture for manufacturer National Oil Seal

Part Number

480991
6 reviews
Sale Price

$8.67

In Stock (8)

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Usually delivered within 2 days

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Product Details

The National Oil Seal 480991 is a spring-loaded, single-lip oil seal designed for general purpose sealing applications on rotating shafts. This precision-engineered seal features a nitrile rubber lip with a metal case and Redicoat rubberized coating to ensure proper sealing and installation.

Key Specifications:

  • Shaft diameter: 1.500 inches
  • Outside diameter: 2.066 inches
  • Overall width: 0.375 inches
  • Design type: 48 series (single lip, spring loaded)
  • Lip material: Nitrile rubber (70 durometer hardness)
  • Metal case construction without inner case
  • Spring-retained sealing lip for consistent contact pressure

Performance Features:

  • Operating temperature range: -40°F to 225°F (-40°C to 107°C)
  • Maximum shaft surface speed: 3,000 feet per minute
  • Misalignment tolerance: 0.015 inches at 800 RPM; 0.010 inches at 4,200 RPM
  • Redicoat rubberized coating fills minor bore imperfections for improved sealing

Nitrile rubber provides excellent resistance to mineral oils, greases, and most hydrocarbon fluids with desirable low-swell properties. The spring-loaded design maintains optimal sealing contact throughout the seal's service life, preventing lubricant leakage and blocking contaminants from entering the system. Commonly used in wheel bearing assemblies, gearboxes, and other automotive and industrial rotating shaft applications.

Products specifications

Fits

1975-1982 Triumph TR7; 1980-1982 Triumph TR8; 1967-1973 Triumph GT6; 1970-1973 Triumph Stag; 1972-1976 Jensen Healey

Agricultural Equipment

N

Application Specific

Y

Car Light Truck

N

Engine Specific

N

Freight Class

60

Heavy Duty Truck

N

High Performance

Y

Industrial Off Highway Equipment

N

Marine

N

Material

Nitrile

Medium Duty Truck

N

Motorcycle ATV

N

Non Vehicle Specific

N

Personal WaterCraft

N

Small Engine

N

SnowMobile

N

Transmission Specific

N

Feature 2

Design Type: Spring Loaded; Single-Lip

Feature 3

Provides good low temperature capability

Feature 4

Low swell in hydrocarbon fluids

Feature 5

Temperature Range: -40F to 225F; -40C to 107C

Outside Diameter (Inch)

2.065

Outside Diameter (mm)

52.480

Part Description

Oil Seal

Part Type

Seals

Series

480000

Type

48

Width (inch)

0.375

WIDTH (MM)

9.525

Housing Bore (Inch)

2.055

Housing Bore (MM)

52.370

Outer Diameter (Inch)

2.065

Redicoat

Yes

Shaft (Inch)

1.496

Shaft (MM)

38.100

First of all, I can not believe how fast I recieved my order, 2 DAYS! Best of all, the instructions made it easy for a non mechanic like me to install.

Good price, free shipping

Fast shipping and the lowest price. Very impressed.

fast shipment and was exactly what i had ordered

Great Communication and instant shipping. Well done!

great and quick

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