TC FKM Double Lip Oil Seal — Rotary Shaft Sealing Ring, ID 45–57mm
TC FKM Double Lip Oil Seal — Rotary Shaft Sealing Ring, ID 45–57mm
TC FKM Double Lip Oil Seal — Rotary Shaft Sealing Ring, ID 45–57mm
TC FKM Double Lip Oil Seal — Rotary Shaft Sealing Ring, ID 45–57mm
TC FKM Double Lip Oil Seal — Rotary Shaft Sealing Ring, ID 45–57mm
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TC FKM Double Lip Oil Seal — Rotary Shaft Sealing Ring, ID 45–57mmTC FKM Double Lip Oil Seal — Rotary Shaft Sealing Ring, ID 45–57mmTC FKM Double Lip Oil Seal — Rotary Shaft Sealing Ring, ID 45–57mmTC FKM Double Lip Oil Seal — Rotary Shaft Sealing Ring, ID 45–57mmTC FKM Double Lip Oil Seal — Rotary Shaft Sealing Ring, ID 45–57mm

TC FKM Double Lip Oil Seal — Rotary Shaft Sealing Ring, ID 45–57mm

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Price:
$8.96 USD
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In stock (500 units), ready to be shipped

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Description

TC FKM Double Lip Oil Seals — Stop Leaks on Rotating Shafts, ID 45–57mm

When a worn or mismatched shaft seal lets oil weep past a gearbox, pump, or axle, the mess is only the beginning — contamination, bearing failure, and downtime follow. Mechanics, equipment rebuilders, and DIY machinists who work on metric-dimensioned rotating assemblies need a seal that fits precisely and holds up to heat and fluid exposure without cracking or hardening prematurely.

Each seal in this listing is a single TC-type rotary shaft oil seal with an FKM (Viton) lip and a carbon steel outer case. The TC double-lip design includes a primary sealing lip to retain lubricant and a secondary dust exclusion lip to keep contaminants out. Available in a wide range of metric sizes: inner diameter (ID) from 45mm (≈1.77") to 57mm (≈2.24"), outer diameter (OD) from 55mm (≈2.17") to 110mm (≈4.33"), and thickness from 6mm (≈0.24") to 12mm (≈0.47"). Select your exact ID × OD × Thickness combination from the variant dropdown.

These TC FKM double lip oil seals are well-suited for gearbox output shaft sealing, hydraulic pump shaft seals, agricultural equipment axle seals, and industrial motor shaft sealing applications where resistance to synthetic oils, elevated temperatures, and outdoor exposure is required.

ℹ️ Compatibility Notice: These are metric TC-type seals following ISO 6194 / DIN 3760 standards. Confirm your shaft ID, housing bore OD, and groove depth (thickness) with calipers before ordering. Sizes are listed as ID × OD × Thickness in millimeters.
⚠️ Size Verification Recommended: With 200+ size combinations available, please double-check all three dimensions (ID, OD, and thickness) against your equipment before placing your order. If you are unsure, contact us to confirm.

✅ Key Features of These TC FKM Double Lip Oil Seals

  • 🔩TC Double Lip Design — The primary lip retains lubricant while the secondary dust lip blocks dirt and moisture ingress, extending bearing and seal service life in contaminated environments.
  • 🌡️FKM (Viton) Lip Material — Resists synthetic oils, fuels, and elevated temperatures typically up to 200°C (392°F), making these rotary shaft seals suitable where standard NBR seals degrade prematurely.
  • 🏗️Carbon Steel Outer Case — The rigid metal shell provides a secure press-fit into the housing bore, maintaining concentricity and preventing the seal from spinning or walking out under vibration.
  • 📐Wide Metric Size Range — ID 45–57mm, OD 55–110mm, thickness 6–12mm covers a broad range of gearbox, pump, and axle shaft sealing applications without needing custom parts.
  • 🔄Spring-Loaded Sealing Lip — An internal garter spring maintains consistent radial lip pressure against the shaft surface, compensating for minor shaft runout and wear over time.
  • 🛡️Chemical & Fluid Resistance — FKM compound is generally compatible with mineral oils, synthetic gear oils, hydraulic fluids, and many industrial chemicals — verify compatibility with your specific fluid before installation.

📐 Technical Specifications — TC FKM Double Lip Oil Seal

Seal Type TC (Double Lip with Dust Exclusion Lip)
Lip Material FKM (Fluoroelastomer / Viton)
Case Material Carbon Steel
Inner Diameter (ID) 45mm–57mm (≈1.77"–2.24") — see variant options
Outer Diameter (OD) 55mm–110mm (≈2.17"–4.33") — see variant options
Thickness 6mm–12mm (≈0.24"–0.47") — see variant options
Operating Temperature Typically -20°C to +200°C (-4°F to +392°F)
Max Shaft Speed Typically up to 4–8 m/s (application-dependent)
Max Pressure Typically ≤0.05 MPa (low-pressure dynamic sealing)
Dimensional Standard ISO 6194 / DIN 3760 (metric)
Spring Garter spring (included, factory-installed)
Quantity per Order 1 piece per variant
Finish See variant options

❓ Frequently Asked Questions

How do I choose the right TC oil seal size for my application?

Measure three dimensions with calipers: the shaft outer diameter (this becomes the seal ID), the housing bore inner diameter (this becomes the seal OD), and the groove depth (this becomes the seal thickness). For example, a 50mm shaft in a 70mm bore with an 8mm groove uses a 50×70×8mm seal. Always verify all three dimensions — a seal that is even 1mm off in any dimension will not seat or seal correctly.

Quick inch conversion reference: 45mm ≈ 1.77", 50mm ≈ 1.97", 55mm ≈ 2.17", 57mm ≈ 2.24".

What load or pressure can these TC oil seals handle?

TC-type double lip seals are generally designed for low-to-medium pressure dynamic sealing. They are typically rated for shaft speeds up to 4–8 m/s and pressures up to approximately 0.05 MPa under standard conditions. For high-pressure hydraulic circuits or high-speed spindles, a different seal type (such as a lip seal with a backup ring or a mechanical face seal) may be more appropriate.

Are these FKM oil seals suitable for outdoor or wet environments?

Yes. FKM (Viton) lip material offers good resistance to water, humidity, and many chemicals. The secondary dust lip on TC-type seals also helps exclude contaminants, mud, and water spray. For fully submerged applications or continuous water immersion, verify FKM compatibility with your specific fluid and temperature range before installation.

What shaft and housing standards are these seals compatible with?

These are metric-dimensioned TC oil seals that generally follow ISO 6194 / DIN 3760 dimensional standards. They are compatible with standard metric shafts and housings. Always verify the ID matches your shaft diameter, the OD matches your housing bore, and the thickness fits your groove depth. They are not designed for inch (imperial) shaft systems without confirming the metric equivalent.

Should I choose FKM or NBR for my oil seal application?

FKM (Viton) seals are generally preferred when operating temperatures exceed 120°C, or when the sealed fluid is a synthetic oil, fuel, biodiesel, or aggressive chemical. NBR seals are typically sufficient for standard mineral oils and lower temperature ranges (up to ~100°C). These seals use FKM for broader chemical and thermal resistance, making them a reliable choice for demanding gearbox and pump applications.

What is the operating temperature range of these FKM oil seals?

FKM lip seals typically operate in a temperature range of approximately -20°C to +200°C (-4°F to +392°F). This makes them suitable for most industrial, automotive, and agricultural equipment applications. Actual performance may vary depending on the specific fluid, shaft speed, and installation conditions.

How do I install a TC oil seal correctly?

Follow these steps for a reliable installation:

  • Clean the housing bore and shaft journal thoroughly.
  • Lightly lubricate the seal lip with the fluid being sealed (e.g., gear oil).
  • Align the seal squarely with the bore — do not tilt.
  • Press the seal in using a seal driver or flat press that contacts the outer metal case only. Never strike the seal lip or face directly.
  • Press until the seal sits flush or slightly below the housing face, as specified by your equipment manual.
  • Inspect the shaft surface for grooves or scoring before installation — a damaged shaft will cut the new seal lip.
🛒 Select your size (ID × OD × Thickness) above, then add to cart — ships from our US warehouse.

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