TC Oil Seal NBR Double Lip Rotary Shaft Seal — ID 36 / 37 / 38 / 39mm, 2-Pack

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TC Oil Seal NBR Double Lip Rotary Shaft Seal — ID 36 / 37 / 38 / 39mm, 2-Pack

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Sizes (ID x OD x Thickness): 36 x 43 x 8mm

Packing QTY (Piece): 2 PCS

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$5.68 USD

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TC NBR Double Lip Oil Seal — Stop Leaks on Shafts from 36mm to 39mm

Mechanics, equipment technicians, and serious DIYers know the frustration of a weeping shaft seal: oil on the floor, contaminated bearings, and a repair job that doubles in scope. These TC skeleton oil seals are engineered to create a reliable barrier between rotating shafts and their housings, keeping lubricant in and contaminants out.

Each listing ships as a 2-piece set of TC-type skeleton oil seals made from NBR (nitrile butadiene rubber) with a steel reinforcing skeleton. The double-lip design features a primary sealing lip that retains oil and a secondary dust-exclusion lip that blocks dirt and moisture. Available in inner diameters of 36mm (approx. 1.42"), 37mm (approx. 1.46"), 38mm (approx. 1.50"), and 39mm (approx. 1.54"), with outer diameters ranging from 43mm to 98mm and thicknesses from 5mm to 14mm — select the exact ID x OD x Thickness combination from the variant dropdown.

Typical applications include agricultural gearboxes, electric motor end shields, hydraulic pump shafts, automotive differential pinion seals, and industrial conveyor drive shafts — anywhere a metric rotary shaft seal is needed to prevent oil leakage or ingress of dust and water.

ℹ️ Compatibility Note: These seals follow the metric TC skeleton profile (DIN 3760 / ISO 6194). Verify your shaft ID, bore OD, and housing depth with calipers before ordering. Dimensions are listed as ID x OD x Thickness in the variant selector.

✅ Key Features of These TC NBR Double Lip Oil Seals

🔩Steel-Skeleton Reinforcement — The rigid metal case maintains a round, press-fit shape in the bore, preventing the seal from spinning or distorting under shaft rotation.
💧Double-Lip NBR Construction — The primary lip retains lubricant while the secondary lip excludes dust and moisture, making these rotary shaft seals suitable for both wet and dusty environments.
📐228+ Size Combinations — With ID options of 36, 37, 38, and 39mm paired with dozens of OD and thickness variants, you can find the exact metric oil seal size for your application without custom ordering.
🌡️NBR Temperature Range — Nitrile rubber typically performs from approximately -40 F to +250 F (-40 C to +121 C), covering most gearbox, pump, and motor operating conditions.
🛢️Oil and Fluid Resistance — NBR is generally compatible with petroleum-based oils, hydraulic fluids, and water-based lubricants commonly found in industrial and agricultural equipment.
📦2-Pack Value — Each order includes two seals so you have an immediate spare on hand — reducing downtime when a seal fails during routine maintenance or an unexpected breakdown.

📐 Technical Specifications — TC Skeleton NBR Oil Seal

Seal Type	TC (Double Lip with Dust Exclusion Lip)
Material	NBR (Nitrile Butadiene Rubber) with Steel Skeleton
Inner Diameter (ID)	36mm (approx. 1.42"), 37mm (approx. 1.46"), 38mm (approx. 1.50"), 39mm (approx. 1.54")
Outer Diameter (OD)	43mm to 98mm (see variant options)
Thickness	5mm to 14mm (see variant options)
Lip Configuration	Double lip — primary sealing lip + secondary dust lip
Operating Temperature	Typically -40 C to +121 C (-40 F to +250 F)
Pressure Rating	Typically up to approx. 0.05 MPa (low-pressure dynamic sealing)
Fluid Compatibility	Petroleum oils, hydraulic fluids, water (contact us to confirm)
Standard Reference	DIN 3760 / ISO 6194 metric profile
Quantity per Order	2 PCS
Color / Finish	Black rubber / bare steel case

⚠️ Sizing Tip: Always measure with calipers — do not rely on worn seal dimensions alone. A seal that is 0.5mm undersized on OD will not press-fit correctly and may leak immediately.

❓ Frequently Asked Questions

How do I choose the right TC oil seal size?

Measure the shaft (inner diameter), the bore (outer diameter), and the housing depth (thickness) with calipers. Match all three dimensions to the variant listed as ID x OD x Thickness. For example, a 38 x 52 x 8mm seal fits a 38mm shaft inside a 52mm bore with an 8mm housing depth (approx. 0.31"). If your existing seal is worn, measure the housing bore and shaft directly rather than the old seal.

What load or pressure can these TC oil seals handle?

TC skeleton oil seals are generally designed for low-to-medium pressure applications. They are typically rated for static pressures up to around 0.05 MPa (7 psi). For higher-pressure systems, a cassette or PTFE-lip seal is generally recommended. These seals perform best in standard gearbox, motor, and pump shaft applications where pressure is not the primary sealing challenge.

Can these seals be used outdoors or in wet environments?

Yes. NBR (nitrile rubber) offers good resistance to water, oil, and mild weathering. The double-lip design adds an extra dust/moisture exclusion lip, making these seals suitable for agricultural equipment, outdoor power tools, and marine auxiliary applications. For prolonged UV or ozone exposure, a silicone or FKM seal is generally a better choice.

What shaft or bore standards are compatible with TC seals?

TC oil seals are shaft-diameter based, not thread-based. They fit any round shaft matching the inner diameter. The TC profile is compatible with standard metric bore housings per DIN 3760 / ISO 6194 in most cases. Confirm your bore diameter and housing depth before ordering. These seals are not designed for tapered or splined shafts without an adapter sleeve.

What fluids is NBR compatible with?

NBR is generally compatible with petroleum-based oils, hydraulic fluids, water, and many fuels. It is typically not recommended for use with ketones (e.g., MEK), esters, or highly aromatic fuels. If you are sealing a synthetic ester-based lubricant or brake fluid, consider an FKM (Viton) seal instead. Contact us to confirm compatibility with your specific fluid.

How do I install a TC skeleton oil seal correctly?

Clean the bore and shaft thoroughly. Lightly lubricate the seal lip with the fluid being sealed (or clean grease). Press the seal squarely into the bore using a seal driver or a flat plate — never hammer directly on the seal face or lip. Ensure the metal case is flush with or slightly below the housing face. Protect the seal lip from sharp shaft edges by using a sleeve or tape during installation.

Why buy a 2-pack instead of a single seal?

Having a spare on hand saves downtime when a seal fails unexpectedly. Oil seals are wear items — keeping a backup in your toolbox means you can complete a repair in one session without waiting for another shipment. For fleet maintenance or recurring equipment service, the 2-pack also provides a cost-effective way to stock common sizes.

🛒 Select your size (ID x OD x Thickness) above, then add to cart — ships from our US warehouse.

TC Oil Seal NBR Double Lip Rotary Shaft Seal — ID 36 / 37 / 38 / 39mm, 2-Pack

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Beschreibung

TC NBR Double Lip Oil Seal — Stop Leaks on Shafts from 36mm to 39mm

✅ Key Features of These TC NBR Double Lip Oil Seals

📐 Technical Specifications — TC Skeleton NBR Oil Seal

❓ Frequently Asked Questions

TC Oil Seal NBR Double Lip Rotary Shaft Seal — ID 36 / 37 / 38 / 39mm, 2-Pack

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