TC Oil Seal 30–38mm ID | Nitrile Rubber + Metal Frame + Spring | Shaft Seal
TC Oil Seal 30–38mm ID | Nitrile Rubber + Metal Frame + Spring | Shaft Seal
TC Oil Seal 30–38mm ID | Nitrile Rubber + Metal Frame + Spring | Shaft Seal
TC Oil Seal 30–38mm ID | Nitrile Rubber + Metal Frame + Spring | Shaft Seal
TC Oil Seal 30–38mm ID | Nitrile Rubber + Metal Frame + Spring | Shaft Seal
TC Oil Seal 30–38mm ID | Nitrile Rubber + Metal Frame + Spring | Shaft Seal
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TC Oil Seal 30–38mm ID | Nitrile Rubber + Metal Frame + Spring | Shaft SealTC Oil Seal 30–38mm ID | Nitrile Rubber + Metal Frame + Spring | Shaft SealTC Oil Seal 30–38mm ID | Nitrile Rubber + Metal Frame + Spring | Shaft SealTC Oil Seal 30–38mm ID | Nitrile Rubber + Metal Frame + Spring | Shaft SealTC Oil Seal 30–38mm ID | Nitrile Rubber + Metal Frame + Spring | Shaft SealTC Oil Seal 30–38mm ID | Nitrile Rubber + Metal Frame + Spring | Shaft Seal

TC Oil Seal 30–38mm ID | Nitrile Rubber + Metal Frame + Spring | Shaft Seal

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Beschreibung

TC Oil Seal 30–38mm ID — Stop Shaft Leaks with a Nitrile + Metal Frame Seal

A weeping gearbox, a dripping pump shaft, or an oil-soaked wheel bearing hub — shaft seal failures are messy, time-consuming, and expensive if ignored. Whether you're a mechanic rebuilding a transmission, a maintenance tech servicing industrial equipment, or a DIYer fixing a leaking axle, having the exact-size TC oil seal on hand is the difference between a 20-minute fix and a full teardown waiting on parts.

Each seal in this listing is a TC-type (double-lip) skeleton oil seal constructed from nitrile rubber (NBR) bonded to a rigid metal frame, with an internal garter spring that maintains constant radial lip pressure on the shaft. Available in inner diameters from 30mm (≈1.18") to 38mm (≈1.50"), outer diameters from 40mm (≈1.57") to 80mm (≈3.15"), and heights of 7mm (≈0.28"), 8mm (≈0.31"), 10mm (≈0.39"), or 12mm (≈0.47"). Sold in packs of 2 or 5 pieces — select your exact size and quantity from the variant dropdowns above.

These TC skeleton oil seals are well-suited for rotating shaft sealing in automotive gearboxes and differentials, agricultural and construction equipment hydraulic systems, and industrial pump and motor shaft applications where reliable oil retention and dust exclusion are required simultaneously.

🔵 Compatibility Note: These seals use metric dimensions (Inner Dia × Outer Dia × Height in mm). Verify all three measurements against your housing and shaft before ordering. Shaft surface finish should typically be Ra 0.2–0.8 µm for optimal lip seal life. If your shaft has a worn groove, a speedi-sleeve repair is recommended before installing a new seal.

✅ Key Features of These TC Nitrile Shaft Oil Seals

  • 🔩Double-Lip TC Design — The primary lip retains lubricant while the secondary dust lip blocks dirt, water, and debris from entering the bearing or gearbox, making these seals ideal for rotating shaft sealing in contaminated environments.
  • 🌡️Nitrile Rubber (NBR) Compound — Resistant to petroleum-based oils, ATF, gear oil, and water across a working temperature range typically from -40°F to +250°F (-40°C to +120°C), covering the majority of automotive and industrial shaft seal applications.
  • 🏗️Rigid Metal Outer Frame — The stamped steel skeleton provides dimensional stability during press-fit installation into the housing bore, preventing distortion and ensuring a consistent interference fit that resists blowout under pressure.
  • 🔄Garter Spring-Loaded Lip — An internal coil spring maintains constant radial load on the shaft lip throughout the seal's service life, compensating for minor lip wear and shaft runout to sustain a leak-free nitrile shaft seal contact.
  • 📐Wide Size Selection — With inner diameters from 30mm to 38mm and over 125 size combinations available, this listing covers a broad range of metric shaft seal replacements for gearboxes, pumps, motors, and axles without needing to source from multiple suppliers.
  • 📦Multi-Pack Value — Available in 2-piece or 5-piece packs, so you can keep spares on the shelf for preventive maintenance schedules or fleet servicing without overpaying for single-unit pricing.

📐 Technical Specifications — TC Skeleton Oil Seal

Seal Type TC (Double-Lip Skeleton)
Inner Diameter (ID) Range 30mm (≈1.18") – 38mm (≈1.50")
Outer Diameter (OD) Range 40mm (≈1.57") – 80mm (≈3.15")
Height Range 7mm (≈0.28") – 12mm (≈0.47")
Lip Material Nitrile Rubber (NBR)
Frame / Case Material Stamped Steel (Metal)
Spring Type Internal Garter Spring
Operating Temperature Typically -40°C to +120°C (-40°F to +250°F)
Max Shaft Speed Generally up to 4–6 m/s surface speed (application-dependent)
Max Differential Pressure Typically ≤ 0.05 MPa (low-pressure dynamic sealing)
Fluid Compatibility Petroleum oils, ATF, gear oil, hydraulic fluid, water
Dimension Standard Metric (mm)
Pack Quantity 2 pieces or 5 pieces (select above)
Exact Size See variant options
Country of Origin Contact us to confirm
⚠️ Before You Order: Measure your shaft ID, housing bore OD, and housing depth (height) with calipers. The seal must match all three dimensions. A seal that is 1mm too large in OD will not press in; one that is 1mm too small will spin in the bore and leak immediately.

❓ Frequently Asked Questions

How do I choose the right TC oil seal size?

Measure the shaft's inner diameter (ID), the bore's outer diameter (OD), and the housing depth (height). Match those three numbers to the variant listed as Inner Dia × Outer Dia × Height. For example, a 35×55×10mm seal fits a 35mm shaft inside a 55mm bore with a 10mm housing depth. When in doubt, measure twice — a seal that is even 0.5mm off will leak.

What load or pressure can these oil seals handle?

TC-type oil seals are generally rated for low-to-moderate shaft pressures, typically up to about 0.05 MPa (7 psi) of differential pressure. They are designed for dynamic sealing on rotating shafts rather than high-pressure static applications. For higher-pressure environments, a lip seal with a backup ring or a mechanical seal is typically recommended.

Can these seals be used outdoors or in wet environments?

Nitrile rubber (NBR) offers good resistance to water, petroleum-based oils, and mild chemicals, making it suitable for most outdoor and wet-environment applications. However, NBR is generally not recommended for prolonged exposure to ozone, strong acids, or ketone-based solvents. For highly corrosive or extreme-temperature outdoor use, a Viton (FKM) seal is typically a better choice.

What shaft speed can TC oil seals handle?

NBR TC oil seals are generally suitable for shaft surface speeds up to approximately 4–6 m/s (roughly 800–1,200 RPM for a 30mm shaft). Exceeding the rated speed causes excessive heat buildup at the lip, accelerating wear. If your application runs at higher speeds, ensure adequate lubrication at the lip and consider a PTFE-lipped variant.

Are these seals compatible with synthetic oils and ATF?

Nitrile rubber is generally compatible with mineral-based oils, ATF (automatic transmission fluid), gear oils, and most hydraulic fluids. Compatibility with fully synthetic PAO or ester-based oils varies — in most cases NBR performs adequately, but for long-term exposure to aggressive synthetics, confirm compatibility with a fluid-compatibility chart or contact us to confirm.

What is the difference between TC and SC oil seal types?

A TC (double-lip) seal has two sealing lips: the primary lip retains lubricant, and the secondary dust lip excludes contaminants from the outside. An SC (single-lip) seal has only the primary lip. TC seals are preferred in dirty or wet environments where keeping contaminants out is as important as keeping oil in.

How should I install a TC oil seal without damaging it?

Clean the housing bore and shaft. Lightly lubricate the seal lip with the fluid it will be sealing. Press the seal in squarely using a seal driver or a flat block — never hammer directly on the seal face. Press until the seal face is flush with or just below the housing surface. Avoid nicking the lip on keyways or splines during installation.

🛒 Select your size and quantity above, then add to cart — ships from our US warehouse.

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