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TC Oil Seal Ring NBR Rubber Double Lip Rotary Shaft Seal — ID 38–170mm
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TC Oil Seal Ring NBR Rubber Double Lip Rotary Shaft Seal — ID 38–170mm
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TC Oil Seal Ring NBR Rubber Double Lip Rotary Shaft Seal — ID 38–170mmTC Oil Seal Ring NBR Double Lip Rotary Shaft Seal for Reliable Leak Free Performance When a worn or undersized shaft seal lets oil migrate past the bearing housing, the result is contaminated lubricant, accelerated wear, and costly downtime. Whether you are rebuilding a gearbox, servicing a pump, or replacing a failed seal on agricultural or industrial equipment, finding the exact TC oil seal ring in the right bore size should not require a trip to a
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TC Oil Seal Ring — NBR Double Lip Rotary Shaft Seal for Reliable Leak-Free Performance
When a worn or undersized shaft seal lets oil migrate past the bearing housing, the result is contaminated lubricant, accelerated wear, and costly downtime. Whether you are rebuilding a gearbox, servicing a pump, or replacing a failed seal on agricultural or industrial equipment, finding the exact TC oil seal ring in the right bore size should not require a trip to a specialty distributor.
Each seal in this listing is a TC-type (double-lip) skeleton oil seal constructed from NBR (nitrile butadiene rubber) with a steel-reinforced inner frame. The double-lip design combines a primary sealing lip that retains lubricant with a secondary dust exclusion lip that keeps contaminants out. Available inner diameters range from 38mm (≈1.50") to 170mm (≈6.69"), outer diameters from 50mm (≈1.97") to 210mm (≈8.27"), and heights from 5mm (≈0.20") to 16mm (≈0.63"). Sold individually (1 pc per order) — select your exact ID, OD, and height combination from the variant options above.
These TC skeleton oil seals are widely used in automotive differential and transmission rebuilds, industrial gearbox and motor shaft sealing, agricultural machinery (tractors, combines, PTO shafts), hydraulic pump and motor housings, and general rotary shaft applications where a press-fit lip seal is required. The broad size range makes this listing a practical single-source solution for maintenance shops and DIY rebuilders who need a specific metric shaft seal without minimum-order requirements.
Compatibility Note: These are metric TC-type skeleton oil seals. Before ordering, measure your shaft OD (= seal ID), housing bore ID (= seal OD), and groove depth (= seal height) with calipers. Dimensions are labeled as Inner Diameter × Outer Diameter × Height in the variant selector.
Confirm your dimensions: Oil seal sizing is critical — a 1mm mismatch in ID or OD will result in leakage or an installation that won't seat. If you are unsure of your housing dimensions, contact us before ordering.
✅ Key Features of These TC Oil Seal Rings
- Double-Lip TC Design — Primary lip retains lubricant; secondary dust lip blocks dirt and moisture ingress, extending bearing and lubricant service life in rotary shaft applications.
- NBR Rubber Construction — Nitrile rubber provides solid resistance to petroleum-based oils, ATF, greases, and water splash across a working temperature range of typically -40°F to +250°F (-40°C to +120°C).
- Steel-Reinforced Skeleton Frame — The internal metal carrier maintains dimensional stability during press-fit installation, preventing distortion and ensuring consistent lip contact force around the shaft circumference.
- Wide Metric Size Range — Inner diameters from 38mm to 170mm and outer diameters up to 210mm cover a broad spectrum of gearbox, pump, and motor shaft seal applications in a single listing.
- Press-Fit Housing Installation — Uniform OD tolerance allows straightforward installation with a seal driver or socket — no adhesive required in most standard housings. Suitable for blind-bore and through-bore housings.
- Broad Application Compatibility — Suitable for automotive differentials, industrial gearboxes, agricultural PTO shafts, hydraulic pump housings, and general rotary shaft sealing where a metric TC-type double lip oil seal is specified.
📐 Technical Specifications — TC NBR Double Lip Skeleton Oil Seal
| Seal Type | TC (Double Lip) Skeleton Oil Seal |
|---|---|
| Material | NBR (Nitrile Butadiene Rubber) with steel inner frame |
| Lip Configuration | Primary sealing lip + secondary dust exclusion lip |
| Inner Diameter (ID) Range | 38mm (≈1.50") – 170mm (≈6.69") |
| Outer Diameter (OD) Range | 50mm (≈1.97") – 210mm (≈8.27") |
| Height (Width) Range | 5mm (≈0.20") – 16mm (≈0.63") |
| Operating Temperature | Typically -40°F to +250°F (-40°C to +120°C) |
| Max Shaft Speed | Typically up to 4–6 m/s (contact us to confirm for your application) |
| Pressure Rating | Low-to-medium; generally up to ~0.05 MPa static |
| Fluid Compatibility | Petroleum oils, ATF, grease, water splash; verify for synthetic PAO/ester oils |
| Installation Method | Press-fit into housing bore |
| Quantity per Order | 1 pc (select variant for your exact ID × OD × Height) |
| Standard | See variant options |
❓ Frequently Asked Questions
How do I choose the right TC oil seal size?
Measure your shaft's outer diameter — that becomes the seal's Inner Diameter (ID). Then confirm the housing bore diameter, which matches the seal's Outer Diameter (OD). Height (width) should match the groove depth in your housing. For example, a 25mm shaft in a 47mm bore typically uses a 25×47×7mm seal. Always verify with calipers before ordering.
What load or pressure can these TC oil seals handle?
TC-type skeleton oil seals are generally rated for low-to-medium pressure applications — typically up to 0.05 MPa (7 psi) of static pressure. They are designed primarily for rotary shaft sealing rather than high-pressure containment. For higher-pressure environments, a hydraulic rod seal or lip seal with a backup ring is generally recommended.
Are these oil seals suitable for outdoor or wet environments?
NBR (nitrile rubber) offers good resistance to petroleum-based oils, greases, and water splash. It is generally suitable for outdoor use in moderate conditions. However, NBR is not recommended for prolonged exposure to ozone, UV, or aromatic fuels. For harsh outdoor or chemical environments, a Viton (FKM) seal is typically a better choice.
What shaft speed and temperature range do these seals support?
NBR TC oil seals are generally rated for shaft surface speeds up to approximately 4–6 m/s and operating temperatures from about -40°F to +250°F (-40°C to +120°C). Actual performance depends on the specific lubricant, shaft finish, and installation conditions. Contact us to confirm suitability for your application.
What does "TC" and "FB" mean in the seal designation?
"TC" refers to the double-lip design: a primary sealing lip that retains lubricant and a secondary dust lip that excludes contaminants. "FB" (or skeleton) indicates a metal-reinforced inner frame that maintains the seal's shape during press-fit installation. Together, TC FB seals provide reliable sealing in both directions.
What shaft surface finish is recommended for best sealing performance?
For optimal sealing, the shaft surface in the contact zone should generally have a finish of Ra 0.2–0.8 µm (8–32 µin). Avoid spiral machining marks, which can pump fluid past the lip. A hardness of HRC 45–60 in the contact area is typically recommended to minimize lip wear over time.
Can I use these seals with synthetic oils or ATF?
NBR rubber is generally compatible with mineral-based oils, ATF (automatic transmission fluid), and many hydraulic fluids. Compatibility with fully synthetic PAO or ester-based oils varies — NBR can swell slightly with some synthetics. If you are using a fully synthetic lubricant, verify compatibility or consider a Viton seal.
🛒 Select your Inner Diameter, Outer Diameter, and Height above, then add to cart — ships from our US warehouse.
TC Oil Seal Ring NBR Rubber Double Lip Rotary Shaft Seal — ID 38–170mm
Item no
:
64141538759
US$ 129.00
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Min. order:
1piece
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