Product Description
Nitrile (Lip code: S) is the most commonly used sealing material as nitrile is excellent with most mineral oils and greases.
Offers desirable "low swell" properties across many hydrocarbon fluid types.
Variations are available for use with fuels, industrial fluids and highly compounded lubricants.
Nitrile works in dry running applications but only for intermittent periods.
Some water based fluids such as certain cutting fluids, can destroy the nitrile/plain steel case bond when operating temperatures exceed 66°C (150°F)
Nitrile exhibits poor ozone resistance.
Poor resistance to lubricants containing sulphur, EP additives, or oxygenated hydrocarbons.Unitized seals spin on their own inner, wearable, elements, not your expensive axle shaft. They sacrifice their inner components so your axles stay clean and smooth.
The inner diameter of the seal seats snuggly on the axle and rotates with it, not cutting into it with road grime and other contaminants that would normaly augur in and mix with the bearing grease resultantly cutting into the axle shaft.
Unitized oil seals have shown to be more fuel efficient than traditional "heavy garter spring on metal wear sleeve" sealing solutions from the past.
Please note special tooling is required to properly install Unitized Oil Seals as they are easily damaged upon installation if they are mistruck during installation.Please note that not all product images are representative of the item being shown but are similar in appearance. Please refer to the seals technical specifications sheet provided in the image carousel for absolute confirmation before ordering.Follow this link for access to Timken's interactive, multi-vehicle, bearing & seal application database.
Follow this link to access Timken's National oil seal & competitor's interchange.
Timken Metric Oil Seal Catalog
National 7707 Inch Oil Seal Catalog & Interchange
Useful Taper Set/Seal Combination & Interchange Chart
Custom Field
Shaft size 4.812"
Seal outer diameter 6.507"
Seal width 0.865"
Seal type & style 03 (Oil bath)
Lip material S (Nitrile)
Case material Redicoat® on metal case
Temperature range -35°C ~ 120°C (-30°F ~ 250°F)
Spring retained Yes
Seal series Red 37 Series
Hardness 70 Durometer
Notable feature Sure-Lock® rib design
Installation tool RD289
Denoted measurement Inch
Shown in catalog Yes