TC Oil Seal 28mm ID NBR Nitrile Rotary Shaft Lip Seal — R23 Series

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TC Oil Seal 28mm ID NBR Nitrile Rotary Shaft Lip Seal — R23 Series

Name: TC Oil Seal 28mm ID NBR Nitrile Rotary Shaft Lip Seal — R23 Series
Brand: HomeDIYer
Price: 7.47 USD
Availability: InStock

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Size(ID x OD x Height): 28 x 35 x 4mm

Pack Quantity(Pcs): 2

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$7.47 USD

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TC Oil Seal 28mm ID — Stop Leaks and Keep Contaminants Out of Your Drivetrain

When a worn or incorrectly sized rotary shaft seal lets oil weep past the lip, it doesn't just create a mess — it starves bearings of lubrication and invites abrasive dirt into precision housings. Mechanics, equipment technicians, and serious DIYers who work on gearboxes, pumps, axles, and agricultural machinery need a TC oil seal with a 28mm inner diameter that installs cleanly and holds its seal over thousands of operating hours.

Each seal in this listing is a TC (double-lip) design made from NBR (nitrile butadiene rubber) with a carbon steel reinforcing case. The inner diameter is fixed at 28mm (≈1.102"), and you choose the outer diameter and height from the variant selector — sizes range from 28×35×4mm up to 28×55×10mm. Pack quantities of 1, 2, 5, 8, 10, 20, 25, and 50 pieces are available so you can stock exactly what you need.

Typical applications include automotive gearbox output shafts, agricultural tractor PTO seals, hydraulic pump shaft seals, electric motor end-cap seals, and industrial conveyor drive units — anywhere a 28mm shaft passes through a housing that must retain oil and exclude dust or moisture.

ℹ️ Compatibility note: The inner diameter is 28mm for all variants. Outer diameter and height vary by size option. Verify your housing bore (OD) and housing depth (height) before selecting a variant. These are metric-dimensioned seals compatible with ISO/DIN metric shafts and housings.

✅ Key Features of These TC Oil Seals 28mm ID

🔒 Double-Lip TC Design — The primary sealing lip retains lubricant while the secondary dust lip blocks dirt, grit, and moisture from reaching the bearing, extending service intervals in contaminated environments.
🧪 NBR Nitrile Rubber Construction — Nitrile rubber offers reliable resistance to petroleum-based oils, greases, and water across a working temperature range of approximately -40°C to +120°C (-40°F to +248°F), making it suitable for most drivetrain and pump applications.
🔩 Carbon Steel Reinforcing Case — The rigid metal outer case maintains dimensional stability during press-fit installation and prevents the seal from distorting under housing clamping forces.
📐 Wide Size Selection — 28mm ID Fixed — With OD options from 35mm to 55mm and heights from 4mm to 12mm, this listing covers a broad range of 28mm shaft applications without needing to source from multiple suppliers.
📦 Flexible Pack Quantities — Order as few as 1 piece for a one-off repair or up to 50 pieces for fleet maintenance and workshop stock, with per-unit cost decreasing at higher quantities.
⚙️ Metric ISO/DIN Compatible Dimensions — Dimensioned to metric standards, these rotary shaft lip seals are direct replacements for OEM seals in European and Asian machinery that specify 28mm shaft seals.

📐 Technical Specifications — TC Rotary Shaft Oil Seal

Seal Type	TC (Double-Lip Rotary Shaft Seal)
Inner Diameter (ID)	28mm (≈1.102")
Outer Diameter (OD)	35mm – 55mm (≈1.378" – 2.165") — see variant options
Height / Width	4mm – 12mm (≈0.157" – 0.472") — see variant options
Lip Material	NBR (Nitrile Butadiene Rubber)
Case Material	Carbon Steel
Operating Temperature	Typically -40°C to +120°C (-40°F to +248°F)
Media Compatibility	Petroleum-based oils, greases, water (not suitable for ketones, strong acids, or ozone-rich environments)
Pressure Rating	Low-pressure / non-pressurized applications (typically ≤0.05 MPa static)
Dimensional Standard	Metric (ISO/DIN compatible)
Pack Quantity Options	1, 2, 5, 8, 10, 20, 25, 50 pieces
Installation Method	Press-fit into housing bore
Spring	See variant options or contact us to confirm

⚠️ Sizing tip: If you are unsure which OD × Height combination fits your housing, remove the old seal and measure the housing bore (= OD) and housing depth (= height) directly. Contact us if you need help cross-referencing a part number.

❓ Frequently Asked Questions

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

Match the seal's inner diameter (ID) to your shaft diameter and the outer diameter (OD) to your housing bore. For this listing, the ID is fixed at 28mm (≈1.102"): select the OD and height that match your housing. For example, 28×42×7mm means ID=28mm, OD=42mm (≈1.654"), height=7mm (≈0.276"). Always measure your housing bore and shaft before ordering.

What does 'TC' mean in TC oil seal?

TC refers to a double-lip seal design. The primary lip retains lubricant and the secondary dust lip prevents contaminants from entering the bearing or housing. This dual-lip construction generally provides better sealing performance than single-lip (SC) seals in most rotary shaft applications.

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

TC oil seals of this type are typically designed for low-to-moderate pressure applications (generally up to about 0.05 MPa / 7 psi static). They are not intended for high-pressure hydraulic circuits. For specific pressure ratings, contact us to confirm suitability for your application.

Can these NBR oil seals be used outdoors or in wet environments?

NBR (nitrile) rubber generally offers good resistance to petroleum-based oils, water, and mild weather exposure. However, NBR is not recommended for prolonged UV exposure, ozone-rich environments, or contact with ketones and strong acids. For outdoor or harsh chemical environments, consider FKM (Viton) seals instead.

What shaft and housing standards are these seals compatible with?

These TC oil seals follow metric dimensional standards and are generally compatible with ISO and DIN metric shafts and housings. The 28mm ID is designed for 28mm nominal shaft diameters. Always verify the OD matches your housing bore before installation.

Which size should I order if I'm replacing an existing seal?

Remove the old seal and measure: (1) shaft diameter = ID, (2) housing bore = OD, (3) housing depth = height. Match all three dimensions to the variant options. If the old seal has a part number stamped on it, cross-reference it to confirm the dimensions. Contact us if you need assistance.

What temperature range can NBR oil seals handle?

NBR rubber typically performs in a temperature range of approximately -40°C to +120°C (-40°F to +248°F), though continuous operation near the upper limit may reduce service life. For higher temperature applications, FKM (Viton) seals are generally recommended.

How many pieces do I need to order, and is bulk pricing available?

Select your pack quantity from the options: 1, 2, 5, 8, 10, 20, 25, or 50 pieces. Ordering in larger quantities reduces the per-piece cost. For maintenance kits or fleet servicing, the 10–50 piece packs offer the best per-unit value. If you need quantities beyond 50, contact us for a custom quote.

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

TC Oil Seal 28mm ID NBR Nitrile Rotary Shaft Lip Seal — R23 Series

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Beschreibung

TC Oil Seal 28mm ID — Stop Leaks and Keep Contaminants Out of Your Drivetrain

✅ Key Features of These TC Oil Seals 28mm ID

📐 Technical Specifications — TC Rotary Shaft Oil Seal

❓ Frequently Asked Questions

TC Oil Seal 28mm ID NBR Nitrile Rotary Shaft Lip Seal — R23 Series

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