TC FB Skeleton Oil Seal Rings NBR Double Lip Seal — Rotation Shaft ID 12mm–29mm
TC FB Skeleton Oil Seal Rings NBR Double Lip Seal — Rotation Shaft ID 12mm–29mm
TC FB Skeleton Oil Seal Rings NBR Double Lip Seal — Rotation Shaft ID 12mm–29mm
TC FB Skeleton Oil Seal Rings NBR Double Lip Seal — Rotation Shaft ID 12mm–29mm
TC FB Skeleton Oil Seal Rings NBR Double Lip Seal — Rotation Shaft ID 12mm–29mm
TC FB Skeleton Oil Seal Rings NBR Double Lip Seal — Rotation Shaft ID 12mm–29mm
TC FB Skeleton Oil Seal Rings NBR Double Lip Seal — Rotation Shaft ID 12mm–29mm
TC FB Skeleton Oil Seal Rings NBR Double Lip Seal — Rotation Shaft ID 12mm–29mm
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TC FB Skeleton Oil Seal Rings NBR Double Lip Seal — Rotation Shaft ID 12mm–29mmTC FB Skeleton Oil Seal Rings NBR Double Lip Seal — Rotation Shaft ID 12mm–29mmTC FB Skeleton Oil Seal Rings NBR Double Lip Seal — Rotation Shaft ID 12mm–29mmTC FB Skeleton Oil Seal Rings NBR Double Lip Seal — Rotation Shaft ID 12mm–29mmTC FB Skeleton Oil Seal Rings NBR Double Lip Seal — Rotation Shaft ID 12mm–29mmTC FB Skeleton Oil Seal Rings NBR Double Lip Seal — Rotation Shaft ID 12mm–29mmTC FB Skeleton Oil Seal Rings NBR Double Lip Seal — Rotation Shaft ID 12mm–29mmTC FB Skeleton Oil Seal Rings NBR Double Lip Seal — Rotation Shaft ID 12mm–29mm

TC FB Skeleton Oil Seal Rings NBR Double Lip Seal — Rotation Shaft ID 12mm–29mm

HomeDIYer
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By HomeDIYer®

Price:
$217.00 USD
Stock:
In stock (500 units), ready to be shipped

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Description

NBR Double Lip TC Oil Seal Rings — Reliable Rotary Shaft Sealing from 12mm to 29mm

A leaking shaft seal on a gearbox, pump, or motor can turn a minor maintenance job into a costly teardown. Whether you are a mechanic rebuilding a transmission, a maintenance tech servicing industrial equipment, or a DIYer fixing a garden tractor axle, finding the exact TC-type rotary shaft oil seal in the right size — without ordering from overseas — is often the hardest part of the job.

Each seal in this listing is a TC FB skeleton double-lip rotary shaft oil seal made from NBR (nitrile butadiene rubber) bonded to a rigid metal skeleton for dimensional stability. The inner diameter (shaft size) ranges from 12mm (≈0.47") to 29mm (≈1.14"); select your exact size from the variant options above. The TC profile features a primary sealing lip that contacts the rotating shaft and a secondary dust exclusion lip — both molded from NBR compound.

These seals are well suited for gearbox output shaft sealing, electric motor bearing housings, hydraulic pump shaft seals, small engine crankshaft applications, and agricultural or lawn equipment axle seals where a metric double-lip NBR rotary seal is specified.

🔵 Compatibility Note: These are metric TC-type seals (ISO 6194 / DIN 3760 Type A). Confirm shaft OD, housing bore ID, and seal width against your application before ordering. Sizes listed are shaft inner diameters — see variant options for full dimensional details.

✅ Key Features of These NBR Double Lip TC Rotary Shaft Oil Seals

  • 🔩TC Double-Lip Design — Primary sealing lip retains oil while the secondary dust lip blocks contaminants, making these seals effective in dirty or wet environments like agricultural equipment and outdoor machinery.
  • 🧲Rigid FB Metal Skeleton — The fully bonded (FB) metal case maintains roundness during press-fit installation and prevents distortion in the housing bore, ensuring a consistent seal contact pattern on the rotating shaft.
  • 🛢️NBR Compound Lip Material — Nitrile rubber resists petroleum-based oils, gear lubricants, ATF, and grease across a typical operating range of -40°C to +120°C (-40°F to +248°F), covering most gearbox and pump shaft seal applications.
  • 📐Wide Size Range in One Listing — Shaft IDs from 12mm (≈0.47") to 29mm (≈1.14") available as variants, so you can source the correct metric double lip oil seal size without hunting across multiple listings.
  • ⚙️Metric Standard Dimensions — Manufactured to ISO 6194 / DIN 3760 Type A dimensional conventions, making these direct replacements for OEM TC seals in metric gearboxes, motors, and pumps.
  • 🚚US Warehouse Stock — Ships from our US warehouse, so you get your replacement shaft seal faster than waiting on international freight — critical when equipment downtime is costing you money.

📐 Technical Specifications — TC FB Skeleton NBR Double Lip Rotary Shaft Oil Seal

Seal Type TC (Double Lip, FB Skeleton)
Lip Material NBR (Nitrile Butadiene Rubber)
Skeleton / Case Carbon steel, fully bonded (FB)
Shaft ID Range 12mm (≈0.47") – 29mm (≈1.14")
OD / Width See variant options
Operating Temperature Typically -40°C to +120°C (-40°F to +248°F)
Max Shaft Speed Contact us to confirm (typically up to 4–6 m/s lip speed for standard NBR TC seals)
Pressure Rating Low-to-medium; typically ≤0.3 MPa (≈43 psi)
Fluid Compatibility Petroleum oils, gear oil, ATF, grease, water splash
Standard ISO 6194 / DIN 3760 Type A (metric)
Finish / Color Black rubber lip, bare metal case
Quantity per Order See variant options
⚠️ Spec Confirmation: OD and width dimensions vary by size. If your application has tight housing tolerances, please contact us with your full seal dimensions (ID × OD × Width) before ordering so we can confirm the correct variant.

❓ Frequently Asked Questions

How do I choose the right shaft seal size?

Measure three dimensions: the shaft outer diameter (this is the seal ID), the housing bore inner diameter (this is the seal OD), and the axial groove depth (seal width). This listing covers shaft IDs from 12mm (≈0.47") to 29mm (≈1.14"). Select your size from the variant options above. If you are working from an OEM part number, contact us and we can cross-reference it.

What pressure can these TC oil seals handle?

TC-type rotary shaft seals are generally designed for low-to-medium pressure environments. They typically handle lip contact pressures up to around 0.3 MPa (≈43 psi) under normal operating conditions. For high-pressure hydraulic circuits, a different seal type (such as a lip seal with a backup ring) is generally recommended.

Are these seals suitable for outdoor or wet environments?

NBR offers good resistance to petroleum-based oils, greases, and water splash. The double-lip design adds a secondary dust lip that helps exclude moisture and contaminants — making these seals a solid choice for outdoor equipment like lawn tractors, tillers, and small engines. For prolonged submersion or exposure to aggressive chemicals, a Viton (FKM) seal is generally more appropriate.

What shaft and housing standards are these compatible with?

TC FB skeleton oil seals follow metric dimensional standards (ISO 6194 / DIN 3760 Type A). They are compatible with metric shafts and housings in the 12–29mm ID range. Always verify the OD and width against your housing bore before installation. These are not inch (imperial) seals — if your application uses inch dimensions, please contact us to confirm cross-compatibility.

What is the operating temperature range for NBR oil seals?

NBR compound typically performs reliably from approximately -40°C (-40°F) to +120°C (+248°F). Short-term excursions up to +130°C may be tolerated, but sustained high-temperature operation above this range can accelerate lip wear and reduce seal life. If your application runs consistently above 120°C, consider a Viton (FKM) or PTFE-lipped seal instead.

Can I use these seals with synthetic oils or ATF?

NBR is generally compatible with mineral-based oils, ATF, and most common gear oils. Compatibility with fully synthetic PAO or ester-based fluids varies — in most cases NBR performs adequately, but prolonged exposure to aggressive synthetics may cause slight swelling. Verify fluid compatibility with your specific oil before installation, or contact us if you are unsure.

How do I install a TC-type rotary shaft seal correctly?

Clean the housing bore and shaft. Lightly lubricate the seal lip with the fluid being sealed. Press the seal squarely into the bore using a seal driver or a flat plate — never hammer directly on the seal face. Ensure the primary lip faces the oil side and the dust lip faces outward. Check that the seal sits flush or just below the housing face.

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

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