NBR Rotary Shaft Oil Seal TC Type — 70mm to 105mm ID, Multiple Sizes
NBR Rotary Shaft Oil Seal TC Type — 70mm to 105mm ID, Multiple Sizes
NBR Rotary Shaft Oil Seal TC Type — 70mm to 105mm ID, Multiple Sizes
NBR Rotary Shaft Oil Seal TC Type — 70mm to 105mm ID, Multiple Sizes
NBR Rotary Shaft Oil Seal TC Type — 70mm to 105mm ID, Multiple Sizes
NBR Rotary Shaft Oil Seal TC Type — 70mm to 105mm ID, Multiple Sizes
NBR Rotary Shaft Oil Seal TC Type — 70mm to 105mm ID, Multiple Sizes
NBR Rotary Shaft Oil Seal TC Type — 70mm to 105mm ID, Multiple Sizes
NBR Rotary Shaft Oil Seal TC Type — 70mm to 105mm ID, Multiple Sizes
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NBR Rotary Shaft Oil Seal TC Type — 70mm to 105mm ID, Multiple SizesNBR Rotary Shaft Oil Seal TC Type — 70mm to 105mm ID, Multiple SizesNBR Rotary Shaft Oil Seal TC Type — 70mm to 105mm ID, Multiple SizesNBR Rotary Shaft Oil Seal TC Type — 70mm to 105mm ID, Multiple SizesNBR Rotary Shaft Oil Seal TC Type — 70mm to 105mm ID, Multiple SizesNBR Rotary Shaft Oil Seal TC Type — 70mm to 105mm ID, Multiple SizesNBR Rotary Shaft Oil Seal TC Type — 70mm to 105mm ID, Multiple SizesNBR Rotary Shaft Oil Seal TC Type — 70mm to 105mm ID, Multiple SizesNBR Rotary Shaft Oil Seal TC Type — 70mm to 105mm ID, Multiple Sizes

NBR Rotary Shaft Oil Seal TC Type — 70mm to 105mm ID, Multiple Sizes

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Beschreibung

NBR TC-Type Rotary Shaft Oil Seal — Stop Leaks on Gearboxes, Pumps & Motors

When a worn or missing shaft seal lets oil weep past a gearbox output shaft, pump housing, or motor bearing, the mess is only the beginning — contaminated lubricant accelerates wear and turns a minor service item into a costly rebuild. Mechanics, maintenance technicians, and serious DIYers who work on industrial equipment, agricultural machinery, or heavy vehicles need a reliable replacement seal they can source quickly in the exact size required.

Each seal in this listing is a TC-type (double-lip) rotary shaft oil seal made from NBR (nitrile rubber) with a carbon steel outer case. The primary lip retains lubricant; the secondary dust lip excludes contaminants. Inner diameters (ID) range from 70mm (≈2.76″) to 105mm (≈4.13″), outer diameters (OD) from 90mm (≈3.54″) to 145mm (≈5.71″), and heights of 10mm (≈0.39″), 12mm (≈0.47″), or 14mm (≈0.55″). Available in packs of 1, 2, 3, 5, or 10 pieces — select your exact size and quantity from the variant options above.

Typical applications include gearbox output shaft sealing, hydraulic pump shaft seals, electric motor bearing housings, agricultural tractor PTO shafts, and industrial conveyor drive units — anywhere a metric TC-type lip seal is specified in the 70–105mm shaft diameter range.

ℹ️ Compatibility Note: These seals follow metric dimensions (ID × OD × Height in mm). Before ordering, measure your shaft OD (= seal ID), housing bore ID (= seal OD), and housing depth (= seal Height). Cross-reference with OEM part numbers or your equipment service manual to confirm fit.

✅ Key Features of These NBR TC Rotary Shaft Oil Seals

  • 🔒Double-Lip TC Design — The primary sealing lip retains oil while the outward-facing dust lip blocks dirt and moisture, making these seals suitable for gearbox shaft sealing in contaminated environments.
  • 🧱NBR Nitrile Rubber Construction — Nitrile offers solid resistance to petroleum-based oils, gear lubricants, hydraulic fluids, and water across a working temperature range typically from -30°C to +100°C (-22°F to +212°F).
  • 🔩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 Size Range in One Listing — Covers 54 distinct ID × OD × Height combinations from 70×90×10mm to 105×145×14mm, reducing the need to source from multiple suppliers for a fleet or workshop stock.
  • 📦Flexible Pack Quantities — Order 1 piece for a single repair or up to 10 pieces for maintenance stock. Multi-pack pricing offers a lower per-unit cost for workshops and fleet operators.
  • ⚙️Metric Standard Dimensions — All sizes conform to metric shaft seal standards (equivalent to DIN 3760 / ISO 6194 TC profile), compatible with European and Asian industrial and agricultural equipment.

📐 Technical Specifications — NBR TC Rotary Shaft Oil Seal

Seal Type TC (Double-Lip) — also referenced as TG4 / FB
Material — Lip NBR (Nitrile Butadiene Rubber)
Material — Case Carbon steel (metal-encased)
Inner Diameter (ID) Range 70mm (≈2.76″) to 105mm (≈4.13″)
Outer Diameter (OD) Range 90mm (≈3.54″) to 145mm (≈5.71″)
Height (Width) Range 10mm (≈0.39″), 12mm (≈0.47″), 14mm (≈0.55″)
Operating Temperature Typically -30°C to +100°C (-22°F to +212°F)
Max Dynamic Pressure Generally up to 0.3 bar (4.4 psi) — contact us to confirm
Fluid Compatibility Mineral oils, gear oils, hydraulic fluids, water, diesel
Standard Reference DIN 3760 / ISO 6194 TC profile (metric)
Pack Quantity Options 1 / 2 / 3 / 5 / 10 pieces (select above)
Condition New
Country of Origin See variant options
⚠️ Sizing Tip: The variant label format is ID × OD × Height (all in mm). Example: "80 × 100 × 12mm" = 80mm shaft, 100mm housing bore, 12mm deep housing. If your housing depth is slightly shallower, contact us before ordering.

❓ Frequently Asked Questions

How do I choose the right oil seal size?

Measure three dimensions: the shaft diameter (this is the seal's ID), the housing bore diameter (this is the seal's OD), and the housing depth (this is the seal's Height). All three must match. For example, a 70 × 90 × 10mm seal fits a 70mm (≈2.76″) shaft, a 90mm (≈3.54″) housing bore, and a 10mm (≈0.39″) housing depth. When in doubt, measure twice and cross-reference with your equipment's service manual.

What does TC-type mean, and how is it different from SC?

TC (also called TG4 or FB) is a double-lip seal: the primary lip retains lubricant on the inboard side, and a secondary dust lip faces outward to exclude contaminants. SC is a single-lip design with only the primary lip. TC seals are generally preferred for applications exposed to dirt, water splash, or light debris — such as gearbox output shafts and agricultural PTO shafts.

What is the pressure and shaft speed rating?

NBR TC lip seals are typically rated for low-pressure applications — generally up to approximately 0.3 bar (4.4 psi) dynamic pressure. Shaft surface speeds are typically suitable up to around 4–8 m/s, depending on shaft surface finish (Ra ≤ 0.8 µm recommended) and adequate lubrication at the lip. For high-pressure hydraulic or high-speed spindle applications, contact us to confirm suitability before ordering.

Can these seals be used outdoors or in wet environments?

NBR nitrile rubber offers good resistance to petroleum-based oils, water, and mild weather exposure, making it generally suitable for outdoor use in moderate climates. However, NBR has limited resistance to prolonged UV/ozone exposure and is not recommended for temperatures consistently below -30°C or above 100°C. For harsh outdoor or high-temperature environments, a Viton (FKM) seal is typically the better choice.

What fluids are these seals compatible with?

NBR seals are generally compatible with: mineral-based engine oils, gear oils, automatic transmission fluid (ATF), hydraulic mineral oil, water, and diesel fuel. They are not recommended for use with DOT 3/4 brake fluid, ketones (MEK, acetone), strong acids, or aromatic hydrocarbons (toluene, xylene). Contact us to confirm compatibility with specific fluids or synthetic lubricants.

How do I install a rotary shaft oil seal correctly?

1. Clean the housing bore and shaft journal. 2. Lightly coat the seal lip with the fluid it will retain (or clean grease). 3. Press the seal squarely into the housing using a seal driver or flat plate — never strike the seal face directly. 4. The seal should sit flush or slightly below the housing face. 5. Ensure the primary lip faces the fluid (inboard) side. A chamfered shaft lead-in helps prevent lip damage during installation.

Are these seals compatible with metric shaft standards?

Yes. All dimensions follow metric standards and are generally equivalent to the DIN 3760 / ISO 6194 TC profile, widely used in European and Asian industrial, agricultural, and automotive equipment. The sizes in this listing cover inner diameters from 70mm to 105mm, outer diameters from 90mm to 145mm, and heights of 10mm, 12mm, or 14mm. If you need to cross-reference an OEM part number, contact us with your equipment make and model.

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

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