TC FB Rotary Shaft Oil Seal — NBR Double Lip | ID 120–400mm OD 150–440mm
TC FB Rotary Shaft Oil Seal — NBR Double Lip | ID 120–400mm OD 150–440mm
TC FB Rotary Shaft Oil Seal — NBR Double Lip | ID 120–400mm OD 150–440mm
TC FB Rotary Shaft Oil Seal — NBR Double Lip | ID 120–400mm OD 150–440mm
TC FB Rotary Shaft Oil Seal — NBR Double Lip | ID 120–400mm OD 150–440mm
TC FB Rotary Shaft Oil Seal — NBR Double Lip | ID 120–400mm OD 150–440mm
TC FB Rotary Shaft Oil Seal — NBR Double Lip | ID 120–400mm OD 150–440mm
TC FB Rotary Shaft Oil Seal — NBR Double Lip | ID 120–400mm OD 150–440mm
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TC FB Rotary Shaft Oil Seal — NBR Double Lip | ID 120–400mm OD 150–440mmTC FB Rotary Shaft Oil Seal — NBR Double Lip | ID 120–400mm OD 150–440mmTC FB Rotary Shaft Oil Seal — NBR Double Lip | ID 120–400mm OD 150–440mmTC FB Rotary Shaft Oil Seal — NBR Double Lip | ID 120–400mm OD 150–440mmTC FB Rotary Shaft Oil Seal — NBR Double Lip | ID 120–400mm OD 150–440mmTC FB Rotary Shaft Oil Seal — NBR Double Lip | ID 120–400mm OD 150–440mmTC FB Rotary Shaft Oil Seal — NBR Double Lip | ID 120–400mm OD 150–440mmTC FB Rotary Shaft Oil Seal — NBR Double Lip | ID 120–400mm OD 150–440mm

TC FB Rotary Shaft Oil Seal — NBR Double Lip | ID 120–400mm OD 150–440mm

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Beschreibung

TC FB Rotary Shaft Oil Seal — Stop Leaks Before They Start

Mechanics, equipment rebuilders, and industrial maintenance teams know the frustration of a weeping shaft seal: oil on the floor, contaminated bearings, and a machine that won't stay in service. Whether you're rebuilding a gearbox, replacing a worn pump seal, or servicing agricultural equipment, getting the right TC double-lip oil seal in the right size is the difference between a lasting repair and a repeat job.

Each seal in this listing is a TC/FB-type double-lip rotary shaft oil seal made from NBR (nitrile rubber) with a steel reinforcing case. Available in a wide range of sizes — inner diameter (ID) from 120mm (≈4.72") to 400mm (≈15.75"), outer diameter (OD) from 150mm (≈5.91") to 440mm (≈17.32"), and housing thickness of 16mm (≈0.63"), 18mm (≈0.71"), or 20mm (≈0.79"). Order 1, 2, or 3 pieces per transaction to match your job quantity.

These seals are commonly used in industrial gearbox shaft sealing, agricultural machinery axle seals, pump and motor shaft applications, and heavy equipment drivetrain rebuilds — anywhere a reliable rotary shaft oil seal for metric shafts is needed to retain lubricant and exclude dust or moisture.

🔵 Compatibility Note: Verify all three dimensions — ID (shaft diameter), OD (bore diameter), and Height (housing depth) — before ordering. Dimensions are metric (mm). See the FAQ below for inch conversion guidance.

✅ Key Features of These TC FB Rotary Shaft Oil Seals

  • 🔒 Double-Lip TC Design — The primary lip retains oil and grease while the secondary dust-exclusion lip blocks contaminants, giving you two lines of defense in a single seal.
  • 🧱 Steel-Reinforced Case — The FB-style metal outer case holds the seal firmly in the housing bore, resisting blowout and maintaining concentricity during operation.
  • 🛢️ NBR Rubber Lip Material — Nitrile rubber offers solid resistance to mineral oils, greases, and water — the fluids most commonly found in gearboxes, pumps, and axle assemblies.
  • 📐 Wide Size Range in One Listing — ID 120–400mm and OD 150–440mm covers a broad spectrum of metric shaft sizes, reducing the need to source seals from multiple suppliers for a single rebuild job.
  • 🌡️ Broad Operating Temperature — NBR lip seals typically perform from -40°F to +250°F (-40°C to +120°C), handling most industrial and agricultural operating environments without hardening or cracking.
  • 📦 Flexible Quantity Options — Choose 1, 2, or 3 pieces per order so you can stock exactly what your repair or maintenance schedule requires without over-ordering.

📐 Technical Specifications — TC FB Rotary Shaft Oil Seal

Seal Type TC / FB Double-Lip Rotary Shaft Oil Seal
Lip Material NBR (Nitrile Butadiene Rubber)
Case Construction Steel-reinforced (FB style)
Inner Diameter (ID) 120mm (≈4.72") – 400mm (≈15.75"); see variant options
Outer Diameter (OD) 150mm (≈5.91") – 440mm (≈17.32"); see variant options
Height / Thickness 16mm (≈0.63"), 18mm (≈0.71"), or 20mm (≈0.79"); see variant options
Quantity per Order 1 Pcs, 2 Pcs, or 3 Pcs; see variant options
Operating Temperature Typically -40°F to +250°F (-40°C to +120°C)
Max Static Pressure Typically ≤ 0.05 MPa (≈7 psi); contact us to confirm
Fluid Compatibility Mineral oils, greases, water (not for aromatic fuels or ozone exposure)
Dimension Standard Metric (mm)
Spring Contact us to confirm
Color / Finish Contact us to confirm
⚠️ Size Confirmation: Always measure your existing seal or housing before ordering. The variant label format is ID × OD × Height in millimeters. If your shaft uses inch measurements, divide by 25.4 to convert to mm (e.g., 8" shaft = 203.2mm → select the 200mm ID variant).

❓ Frequently Asked Questions

How do I choose the right size TC oil seal?

Measure three dimensions: the shaft diameter (= ID), the housing bore diameter (= OD), and the housing depth (= Height/Thickness). Match all three to the variant label shown as ID × OD × Height. For example, a 200*240*18mm seal fits a 200mm (≈7.87") shaft, a 240mm (≈9.45") bore, and an 18mm (≈0.71") housing depth. When in doubt, prioritize the shaft diameter — it is the most critical fit dimension.

What does TC / FB mean on a rotary shaft oil seal?

TC denotes a double-lip design: a primary sealing lip that retains oil or grease and a secondary dust-exclusion lip that keeps contaminants out. FB refers to the metal case construction style. Together they provide reliable sealing in both directions and are generally suitable for moderate-speed rotating shafts in gearboxes, pumps, and axle assemblies.

What is the load or pressure rating of these oil seals?

TC-type NBR lip seals are typically rated for low-to-moderate shaft speeds and static pressures up to approximately 0.05 MPa (7 psi). They are not designed for high-pressure hydraulic circuits. Contact us to confirm suitability for your specific operating speed and pressure conditions.

Can these seals be used outdoors or in wet environments?

NBR rubber generally offers good resistance to water, mineral oils, and greases, making it suitable for many outdoor and wet-environment applications such as agricultural equipment and marine auxiliary machinery. However, NBR is not recommended for prolonged exposure to ozone, UV radiation, or aromatic/synthetic fuels. For those conditions, a Viton (FKM) seal is typically a better choice.

Are these seals compatible with metric shafts and housings?

Yes. All dimensions follow metric standards in millimeters. They are compatible with any metric shaft and housing that matches the listed ID, OD, and Height. For inch-based systems, divide the inch measurement by 25.4 to get millimeters — for example, a 10" bore = 254mm, so the 250*280*18mm or 250*290*18mm variant would be the closest candidates to verify.

How do I install a TC rotary shaft oil seal correctly?

Follow these steps for a leak-free installation:

  • Clean the housing bore and shaft journal thoroughly.
  • Lightly lubricate the seal lip with the fluid it will retain (oil or grease).
  • Press the seal squarely into the bore using a seal driver or flat plate — never strike the seal face directly.
  • Orient the open (spring) side of the lip toward the fluid being retained.
  • Protect the lip from keyways or splines during installation using a sleeve or tape.
What temperature range can NBR oil seals handle?

NBR rubber typically performs reliably from approximately -40°F to +250°F (-40°C to +120°C). Sustained exposure above this range can cause the rubber to harden and crack, leading to seal failure and lubricant leakage. For higher-temperature applications, consider a silicone or Viton alternative.

🛒 Select your size (ID × OD × Height) and quantity above, then add to cart — ships from our US warehouse.

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