What thread or interface standard do these seals use?

TC oil seals use a press-fit (interference fit) installation into a machined bore — there are no threads. The OD presses into the housing bore and the ID lip rides on the rotating shaft. Bore and shaft tolerances should follow ISO 6194 or equivalent standards for best results.

TC Double Lip Oil Seal — NBR Rotary Shaft Seal with Stainless Steel Spring

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TC Double Lip Oil Seal — NBR Rotary Shaft Seal with Stainless Steel Spring

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Height: 7mm

Size(ID x OD): 22mm × 32mm

QTY (Pieces): 2 Pcs

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$8.09 USD

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In stock (500 units), ready to be shipped

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TC Double Lip NBR Oil Seal — Stop Leaks & Block Contaminants on Rotating Shafts

A weeping axle seal, a leaking gearbox, or a dusty wheel bearing can turn a routine maintenance job into a costly repair. Whether you're a mechanic rebuilding a differential, a farmer servicing a PTO shaft, or a DIYer replacing a worn crankshaft seal, finding the right TC double lip oil seal in the exact size you need — without ordering from an overseas catalog and waiting weeks — is the real challenge.

Each seal in this listing is a TC-type (double lip) rotary shaft seal constructed from NBR (nitrile butadiene rubber) with a stainless steel garter spring that maintains consistent lip-to-shaft contact. The metal outer case provides a firm press-fit into the housing bore. Available in inner diameters from 22mm (≈7/8") to 30mm (≈1-3/16"), outer diameters from 32mm (≈1-1/4") to 72mm (≈2-13/16"), and heights of 5mm, 7mm, 8mm, 10mm, and 12mm. Order in quantities of 1, 2, 5, 25, or 50 pieces to match your job size.

These NBR rotary shaft seals are well suited for automotive differential and transmission rebuilds, agricultural equipment PTO and gearbox sealing, and industrial motor and pump shaft sealing where petroleum-based oils and moderate dust exposure are the primary concerns. The double-lip design makes them a reliable choice for any application where a single-lip seal has previously allowed contamination ingress.

ℹ️ Compatibility Note: These are metric TC oil seals. Before ordering, verify your shaft OD, housing bore ID, and housing depth using calipers. Dimensions are listed as Height / ID × OD in the variant selector. Imperial equivalents are approximate — always confirm with metric measurements.

⚠️ Confirm your fit: Oil seal sizing is application-specific. If you are unsure of your exact dimensions, remove the old seal and measure it directly, or contact us before ordering.

✅ Key Features of These TC Double Lip NBR Oil Seals

🔒Double-Lip TC Design — The primary lip seals in lubricant while the secondary dust lip blocks dirt, water, and debris from reaching the bearing or shaft, providing two independent barriers in a single seal.
🌀Stainless Steel Garter Spring — A corrosion-resistant spring maintains consistent radial load on the primary lip across the full range of shaft speeds, compensating for minor shaft runout and lip wear over time.
🧪NBR Rubber Construction — Nitrile rubber offers broad compatibility with petroleum-based oils, ATF, gear oil, and grease, making these seals suitable for most automotive and industrial rotary shaft seal applications.
📐Wide Size Selection — With ID options from 22mm to 30mm and OD options up to 72mm across five height options (5–12mm), this listing covers a broad range of metric shaft seal sizes in one place.
🏗️Metal-Cased Outer Shell — The rigid outer case ensures a secure interference fit in the housing bore, resisting blowout under normal operating pressures and simplifying installation with a seal driver or press.
📦Flexible Quantity Options — Available in 1, 2, 5, 25, or 50-piece packs so you can order exactly what you need — whether it's a single replacement seal or a shop stock of common sizes.

📐 Technical Specifications — TC Double Lip Rotary Oil Seal

Seal Type	TC (Double Lip, Metal-Cased)
Lip Material	NBR (Nitrile Butadiene Rubber)
Spring Material	Stainless Steel Garter Spring
Outer Case Material	Carbon Steel (metal-cased)
Inner Diameter (ID)	22mm – 30mm (≈7/8" – 1-3/16"); see variant options
Outer Diameter (OD)	32mm – 72mm (≈1-1/4" – 2-13/16"); see variant options
Height (Width)	5mm, 7mm, 8mm, 10mm, or 12mm; see variant options
Quantity per Order	1, 2, 5, 25, or 50 pieces; see variant options
Temperature Range	Typically −40°C to +120°C (−40°F to +248°F) for NBR
Max Shaft Speed	Contact us to confirm for your specific size
Pressure Rating	Low-pressure / static sealing (typically ≤ 0.3 bar / 4 psi)
Installation Method	Press-fit (interference fit) into housing bore
Lip Configuration	Primary sealing lip (inboard) + secondary dust lip (outboard)
Fluid Compatibility	Petroleum oils, ATF, gear oil, grease (not for ketones or strong acids)
Standard Reference	ISO 6194 / DIN 3760 equivalent

❓ Frequently Asked Questions

How do I choose the right TC oil seal size?

Measure three dimensions with calipers: the shaft diameter (this is the ID), the housing bore diameter (this is the OD), and the housing depth (this is the height). Match all three to the variant options on this page. For example, a 25mm shaft, 42mm bore, and 7mm depth = select 7mm / 25mm × 42mm. When converting: 25mm ≈ 1", 42mm ≈ 1-5/8". Always confirm with metric measurements — imperial equivalents are approximate.

What does "TC" mean on an oil seal?

TC designates a double-lip seal design. The primary lip retains oil or grease on the inboard side, while the secondary (dust) lip faces outward to block contaminants. This dual-barrier construction is generally more effective than single-lip (SC) seals in dirty or wet environments such as wheel hubs, gearboxes, and agricultural equipment.

What is the pressure or load rating of these seals?

TC oil seals are typically rated for low-to-moderate shaft speeds and static pressures up to approximately 0.3 bar (4 psi). They are not designed for high-pressure hydraulic circuits. For exact speed and pressure ratings for your specific size and application, contact us to confirm before ordering.

Can these seals be used outdoors or in wet environments?

NBR generally offers good resistance to petroleum-based oils, water, and mild weather exposure. However, NBR is not recommended for prolonged UV exposure, ozone, ketones, or strong acids. For outdoor marine environments or chemical exposure, a Viton (FKM) seal is typically a better choice. For standard automotive and agricultural use in oil-wet environments, NBR is generally well suited.

What interface standard do these seals use — are there threads?

TC oil seals use a press-fit (interference fit) installation — there are no threads. The metal OD case presses into the housing bore and the rubber lip rides on the rotating shaft. Bore and shaft tolerances should follow ISO 6194 or DIN 3760 equivalent standards for a proper fit and leak-free seal.

How do I install a TC oil seal without damaging the lip?

Apply a thin film of clean oil or grease to the seal lip and the shaft before installation. Use a seal driver or flat press plate to push the seal squarely into the bore — never hammer directly on the seal face. Drive it flush or slightly below the housing surface. If the shaft has a keyway or spline, protect the lip with a sleeve or tape during installation to avoid nicking the rubber.

Which size should I order if I'm not sure of my exact dimensions?

Remove the old seal and measure its OD, ID, and height with calipers. Cross-reference those measurements with the variant options on this page. If the old seal is too worn to measure accurately, check your equipment's service manual or contact us with the make, model, and application — we can help identify the correct rotary shaft seal size.

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

TC Double Lip Oil Seal — NBR Rotary Shaft Seal with Stainless Steel Spring

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Description

TC Double Lip NBR Oil Seal — Stop Leaks & Block Contaminants on Rotating Shafts

✅ Key Features of These TC Double Lip NBR Oil Seals

📐 Technical Specifications — TC Double Lip Rotary Oil Seal

❓ Frequently Asked Questions

TC Double Lip Oil Seal — NBR Rotary Shaft Seal with Stainless Steel Spring

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