What load or pressure can these rotary shaft seals handle?

TC oil seals are generally designed for low-to-medium pressure applications. They are typically rated for static pressures up to around 0.05 MPa (7 psi). For higher-pressure environments, a different seal type may be required. Contact us to confirm suitability for your application.

Are these oil seals suitable for outdoor or wet environments?

NBR (nitrile rubber) generally offers good resistance to oils, fuels, and water, making it suitable for many outdoor and wet environments. However, it is not recommended for prolonged exposure to ozone, UV, or ketone-based fluids. For harsh outdoor conditions, verify compatibility with your specific media.

Why should I choose a double-lip TC seal over a single-lip seal?

The double-lip (TC) design provides an additional dust exclusion lip on the air side, which helps keep contaminants like dirt, dust, and moisture out of the bearing or housing. This generally extends service life compared to single-lip seals in environments where external contamination is a concern.

TC Oil Seal Rotary Shaft Seal — NBR Nitrile Rubber Double Lip, Multiple Sizes (Pack of 10)

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TC Oil Seal Rotary Shaft Seal — NBR Nitrile Rubber Double Lip, Multiple Sizes (Pack of 10)

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Inner Dia x Outer Dia: 30 x 40mm

Thickness: 7mm

Pack of Quantity (Pcs): 10

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$5.83 USD

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In stock (500 units), ready to be shipped

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TC Oil Seal Rotary Shaft Seal — Stop Leaks and Contamination with the Right NBR Double Lip Seal

When a worn or incorrectly sized shaft seal lets oil escape or allows dirt to enter a bearing housing, the damage compounds fast — leading to costly downtime, contaminated lubricant, and premature bearing failure. Whether you're a maintenance technician rebuilding industrial equipment, a mechanic servicing agricultural machinery, or a DIYer repairing a gearbox or pump, having the correct TC oil seal on hand makes the difference between a lasting repair and a repeat job.

Each pack contains 10 pieces of TC-type rotary shaft seals made from NBR (nitrile butadiene rubber) with a metal outer case for rigid housing fit. Available in a wide range of metric sizes: inner diameter (ID) from 30mm (≈1.18") to 58mm (≈2.28"), outer diameter (OD) from 40mm (≈1.57") to 100mm (≈3.94"), and thickness from 5mm (≈0.20") to 12mm (≈0.47"). Select your exact ID × OD and thickness combination from the variant options above.

These NBR double lip oil seals are widely used in gearbox shaft sealing, hydraulic pump shaft applications, electric motor end-cap sealing, agricultural equipment drives, and general industrial rotating shaft assemblies where reliable oil retention and dust exclusion are required.

ℹ️ Compatibility Note: These are metric-dimensioned TC oil seals. Always measure your shaft OD (= seal ID), housing bore ID (= seal OD), and housing depth (= seal thickness) before selecting a size. Dimensions are in millimeters. Not designed for inch-standard shafts unless metric dimensions match.

⚠️ Confirm Before Installing: If you are unsure of your shaft or bore dimensions, measure with calipers before ordering. Seal material compatibility with your specific fluid should be verified — NBR is suitable for petroleum oils and water but not for ketones or strong acids.

✅ Key Features of These TC Oil Seal Rotary Shaft Seals

🔩Double Lip (TC) Design — The secondary dust exclusion lip on the atmosphere side blocks dirt, dust, and moisture from entering the bearing housing, extending seal and bearing service life in contaminated environments.
🧪NBR Nitrile Rubber Construction — NBR offers solid resistance to petroleum-based oils, greases, fuels, and water, making these seals suitable for gearbox oil seal replacement and hydraulic shaft sealing across a broad range of industrial fluids.
🏗️Metal-Reinforced Outer Case — The rigid metal outer shell ensures a secure, interference-fit installation in the housing bore, preventing seal rotation and maintaining concentricity with the shaft.
📐Wide Size Range in One Listing — Inner diameters from 30mm to 58mm and outer diameters up to 100mm cover a broad spectrum of rotating shaft seal applications, from small pump shafts to larger agricultural equipment drives.
🌡️Broad Operating Temperature Range — NBR rubber typically performs from approximately -40°C to +120°C (-40°F to +248°F), covering most standard industrial and automotive gearbox operating conditions.
📦Pack of 10 — Workshop-Ready Quantity — Each order ships as a pack of 10 identical seals, ideal for maintenance shops, fleet repair operations, and anyone who needs spares on hand for recurring rotary shaft seal replacements.

📐 Technical Specifications — TC Rotary Shaft Oil Seal

Seal Type	TC (Double Lip with Dust Exclusion Lip)
Material	NBR (Nitrile Butadiene Rubber) with Metal Outer Case
Inner Diameter (ID)	30mm – 58mm (≈1.18" – 2.28"); see variant options
Outer Diameter (OD)	40mm – 100mm (≈1.57" – 3.94"); see variant options
Thickness	5mm, 6mm, 7mm, 8mm, 10mm, 12mm; see variant options
Operating Temperature	Typically -40°C to +120°C (-40°F to +248°F)
Max Static Pressure	Typically up to ~0.05 MPa (7 psi); contact us to confirm
Fluid Compatibility	Petroleum oils, greases, water, fuels (not ketones or strong acids)
Dimension Standard	Metric (mm) — ISO/DIN compatible
Quantity per Pack	10 pieces
Shaft Speed	See variant options or contact us to confirm
Color / Finish	Black rubber body with silver/grey metal case (typical)

❓ Frequently Asked Questions

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

Measure three dimensions: (1) the shaft outer diameter — this equals the seal's inner diameter (ID); (2) the housing bore inner diameter — this equals the seal's outer diameter (OD); and (3) the housing depth — this equals the seal's thickness. For example, a 30mm shaft in a 40mm bore with a 7mm housing depth requires a 30 × 40 × 7mm seal. Always use calipers for accurate measurement. If your shaft is in inches, convert first: 1 inch = 25.4mm.

What pressure can these rotary shaft seals handle?

TC oil seals are generally designed for low-to-medium pressure rotating shaft applications. They typically handle static pressures up to approximately 0.05 MPa (≈7 psi). For dynamic or higher-pressure sealing, a different seal design may be required. Contact us to confirm suitability for your specific application.

Can I use these NBR oil seals outdoors or in wet conditions?

NBR nitrile rubber generally offers good resistance to water, petroleum oils, and fuels, making it suitable for many outdoor and wet environments. However, NBR is not recommended for prolonged exposure to ozone, direct UV sunlight, or ketone-based fluids. For harsh outdoor or chemical environments, verify fluid compatibility before installation.

Are these seals compatible with metric or inch shafts?

These TC oil seals are dimensioned in metric millimeters and are compatible with metric shafts following ISO and DIN standards. They are not designed for inch-standard shafts unless the metric dimensions happen to match your shaft and bore. Always cross-reference your measurements in millimeters before ordering.

Why choose a double-lip TC seal instead of a single-lip seal?

The TC double-lip design adds a secondary dust exclusion lip on the air side of the seal. This secondary lip prevents external contaminants — dirt, dust, water, and debris — from reaching the primary sealing lip and the bearing. In environments where contamination is a concern (agricultural, construction, outdoor industrial), TC seals generally provide longer service life than single-lip designs.

What is the operating temperature range for these NBR shaft seals?

NBR nitrile rubber typically performs reliably from approximately -40°C to +120°C (-40°F to +248°F). Performance may degrade outside this range. If your application involves sustained temperatures above 120°C, consider FKM (Viton) seals, which offer higher heat resistance. Contact us if you need guidance on material selection.

How do I install a TC rotary shaft seal correctly?

Before installation: clean the housing bore and shaft thoroughly. Apply a thin film of compatible grease or oil to the seal lips and the shaft surface. Press the seal squarely into the bore using a seal driver or flat press — never strike the seal face directly with a hammer. Ensure the seal sits flush or slightly below the housing face. Avoid damaging the sealing lip on sharp shaft edges or keyways during installation.

🛒 Select your size (Inner Dia × Outer Dia) and thickness above, then add to cart — ships from our US warehouse.

TC Oil Seal Rotary Shaft Seal — NBR Nitrile Rubber Double Lip, Multiple Sizes (Pack of 10)

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TC Oil Seal Rotary Shaft Seal — Stop Leaks and Contamination with the Right NBR Double Lip Seal

✅ Key Features of These TC Oil Seal Rotary Shaft Seals

📐 Technical Specifications — TC Rotary Shaft Oil Seal

❓ Frequently Asked Questions

TC Oil Seal Rotary Shaft Seal — NBR Nitrile Rubber Double Lip, Multiple Sizes (Pack of 10)

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