What does 'TC' mean in TC oil seal?

'TC' refers to the double-lip design: a primary sealing lip that retains lubricant and a secondary dust lip that keeps contaminants out. This dual-barrier construction is generally more effective than single-lip (SC) seals in environments where both oil retention and dirt exclusion are needed.

NBR TC Oil Seals — Double Lip Rotary Shaft Seal, Nitrile Rubber, Metric Sizes

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NBR TC Oil Seals — Double Lip Rotary Shaft Seal, Nitrile Rubber, Metric Sizes

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Inner Diameter: 62mm

Size (ID*OD*Height): 62*80*12mm

Amount: 1pcs

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$2.71 USD

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NBR TC Double Lip Oil Seals — Stop Leaks on Rotary Shafts with Metric Precision

A leaking shaft seal on a gearbox, differential, or pump doesn't just make a mess — it leads to lubricant starvation, accelerated wear, and costly downtime. Whether you're a mechanic rebuilding a transmission, a farmer servicing agricultural equipment, or a DIYer tackling a power tool repair, finding the right metric oil seal quickly is critical.

Each seal in this listing is a TC-type (double lip) rotary shaft oil seal made from NBR (Nitrile Butadiene Rubber) with a steel skeleton reinforcement. Available in metric sizes with inside diameters ranging from 65mm (≈2.56") to 100mm (≈3.94"), outside diameters from 80mm (≈3.15") to 140mm (≈5.51"), and heights from 8mm (≈0.31") to 14mm (≈0.55"). Sold individually — select your exact ID x OD x Height from the variant options above.

These seals are a go-to solution for rotary shaft oil seal replacement in automotive axle and differential rebuilds, industrial gearbox and pump maintenance, and agricultural machinery servicing where metric TC oil seals are the standard specification.

ℹ️ Compatibility Note: These are metric-dimensioned TC oil seals. Always verify your shaft ID, housing bore OD, and housing depth before ordering. Dimensions are expressed as ID × OD × Height (mm). See variant options for available sizes.

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

🔒 Double Lip (TC) Design — The primary lip retains lubricant while the secondary dust lip blocks contaminants, providing dual-barrier protection in a single rotary shaft oil seal.
🧱 Steel Skeleton Reinforcement — An internal metal case maintains dimensional stability during press-fit installation and prevents the seal from distorting under housing pressure.
🛢️ NBR Nitrile Rubber Construction — Nitrile rubber offers reliable resistance to petroleum-based oils, gear lubricants, and hydraulic fluids — the fluids most commonly found in gearboxes and differentials.
📐 Metric Sizing Across a Wide Range — Available in multiple metric TC oil seal sizes (ID 65–100mm, OD 80–140mm, height 8–14mm), covering a broad range of industrial and automotive shaft applications.
🌡️ Broad Operating Temperature Range — NBR compound typically performs from -40°F to +250°F (-40°C to +120°C), making these seals suitable for both cold-start and sustained-operation conditions.
🔧 Press-Fit Installation — Standard interference-fit OD allows installation with a seal driver or socket — no adhesive or special tooling required for most housing bores.

📐 Technical Specifications — NBR TC Rotary Shaft Oil Seals

Seal Type	TC (Double Lip — primary sealing lip + secondary dust lip)
Material	NBR (Nitrile Butadiene Rubber) with steel skeleton
Color	Black
Inside Diameter (ID)	65mm–100mm (≈2.56"–3.94") — see variant options
Outside Diameter (OD)	80mm–140mm (≈3.15"–5.51") — see variant options
Height / Width	8mm–14mm (≈0.31"–0.55") — see variant options
Dimension Format	ID × OD × Height (mm)
Typical Operating Temp.	-40°F to +250°F (-40°C to +120°C)
Fluid Compatibility	Petroleum-based oils, gear oil, hydraulic fluid, grease
Installation Method	Press-fit (interference fit on OD)
Country of Origin	China
Quantity per Order	See variant options

⚠️ Spec Confirmation: Exact per-size dimensions vary by variant. If your application requires a specific shaft speed rating or lip spring material confirmation, contact us before ordering.

❓ Frequently Asked Questions

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

Measure three dimensions: the shaft inner diameter (ID), the housing bore outer diameter (OD), and the housing depth (height). These are expressed as ID × OD × Height in millimeters. For example, a 70 × 90 × 10 seal fits a 70mm shaft inside a 90mm bore with a 10mm housing depth. When in doubt, consult your equipment's service manual or contact us to confirm the correct size.

What does "TC" mean in a TC oil seal?

"TC" designates a double-lip seal: a primary lip that retains lubricant on the inboard side, and a secondary dust lip that excludes dirt and moisture from the outboard side. This dual-barrier design is generally more effective than single-lip (SC) seals in applications where both oil retention and contamination exclusion are required.

What temperature and pressure range can these seals handle?

NBR nitrile rubber typically handles temperatures from approximately -40°F to +250°F (-40°C to +120°C). These seals are suited for low-to-moderate pressure dynamic sealing. For high-temperature environments (above 250°F) or exposure to aggressive chemicals, FKM (Viton) seals are generally recommended instead.

Are these oil seals suitable for outdoor or wet environments?

NBR nitrile rubber offers good resistance to petroleum-based oils, greases, and water, making these seals generally suitable for outdoor equipment exposed to moisture and light weathering. However, NBR is not recommended for prolonged exposure to ozone, UV radiation, or aromatic fuels. In those conditions, EPDM or FKM seals are typically a better choice.

What fluids are these seals compatible with?

These NBR TC seals are compatible with most petroleum-based lubricants including engine oil, gear oil, hydraulic fluid, and grease. They are generally not compatible with DOT 3/4 brake fluid, phosphate ester hydraulic fluids, or ketone-based solvents. Contact us to confirm compatibility if you are unsure about your specific fluid.

Can I use these metric seals on imperial-dimensioned shafts?

These seals are manufactured to metric dimensions (mm). Some metric sizes closely approximate common imperial shaft diameters, but they are not interchangeable without verification. Always match the seal ID to your exact shaft diameter in millimeters. See variant options for available sizes, or contact us if you need a specific size confirmed.

What equipment are these TC oil seals typically used in?

These metric TC double lip oil seals are commonly used in automotive differentials, gearboxes, and axle shafts, as well as agricultural equipment, industrial motors, pumps, and power transmission systems. They are a standard replacement seal for any rotary shaft application requiring oil retention and dust exclusion.

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

NBR TC Oil Seals — Double Lip Rotary Shaft Seal, Nitrile Rubber, Metric Sizes

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Beschreibung

NBR TC Double Lip Oil Seals — Stop Leaks on Rotary Shafts with Metric Precision

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

📐 Technical Specifications — NBR TC Rotary Shaft Oil Seals

❓ Frequently Asked Questions

NBR TC Oil Seals — Double Lip Rotary Shaft Seal, Nitrile Rubber, Metric Sizes

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