TC Oil Seal NBR Double Lip Rotary Shaft Seal — ID 11–15mm, Multiple Sizes (5-Pack)

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TC Oil Seal NBR Double Lip Rotary Shaft Seal — ID 11–15mm, Multiple Sizes (5-Pack)

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Sizes (ID x OD x Thickness): 11 x 17 x 4mm

Packing QTY (Piece): 5 PCS

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$5.47 USD

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TC Oil Seal NBR Double Lip — Stop Leaks on Rotary Shafts from 11 mm to 15 mm

A weeping gearbox, a dripping pump shaft, or a greasy wheel bearing hub — these are the kinds of leaks that start small and turn into expensive repairs. If you're a mechanic, equipment technician, or hands-on DIYer dealing with a worn or damaged rotary shaft seal, this TC skeleton oil seal is the direct-fit replacement you need. The TC (double-lip) design is the most widely used standard in automotive, agricultural, and industrial equipment worldwide.

Each 5-piece pack contains TC skeleton oil seals with an NBR (nitrile rubber) sealing lip and a rigid steel skeleton case. Sizes are listed as ID × OD × Thickness — for example, 12 x 22 x 7mm means a 12 mm (≈0.47") inner diameter, 22 mm (≈0.87") outer diameter, and 7 mm (≈0.28") thickness. Inner diameters in this listing range from 11 mm to 15 mm, with outer diameters from 17 mm up to 48 mm and thicknesses from 3 mm to 10 mm, covering a wide range of shaft and housing combinations.

Common applications include small engine crankshaft seals, gearbox input and output shaft seals, hydraulic pump shaft seals, agricultural equipment axle seals, and power tool spindle seals — anywhere a rotating shaft passes through a stationary housing and needs to retain oil or grease while excluding dust and moisture.

🔩 Compatibility Note: These are standard TC-profile metric oil seals. Verify your shaft OD, bore ID, and housing depth with calipers before ordering. The size printed on your old seal (e.g., 12-22-7 or 12×22×7) matches the ID × OD × Thickness format used in this listing.

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

🛡️ Double-Lip TC Design — The primary lip retains oil; the secondary dust lip blocks contaminants, making this seal effective in both clean and dirty operating environments.
🔧 Rigid Steel Skeleton Case — The metal-reinforced outer case presses firmly into the housing bore and resists distortion under installation force, maintaining a consistent interference fit.
🧪 NBR Sealing Lip — Nitrile rubber is compatible with petroleum-based oils, greases, and many hydraulic fluids, and is generally rated for continuous service up to approximately 120 °C (248 °F).
📐 Wide Size Selection — Over 250 size combinations with IDs from 11 mm to 15 mm let you find an exact match for small engine, pump, and gearbox shaft seal replacements without custom ordering.
📦 5-Piece Pack Value — Buying in a 5-pack gives you spares for future maintenance intervals or for sealing multiple shafts of the same size in a single repair job.
⚙️ Drop-In Replacement Fit — Metric dimensions follow standard TC seal profiles used across automotive, agricultural, and industrial equipment, so these seals typically replace OEM parts without modification.

📐 Technical Specifications — TC Skeleton Rotary Shaft Oil Seals

Seal Type	TC (Double Lip, Spring-Loaded Primary Lip)
Inner Diameter (ID) Range	11 mm – 15 mm (≈0.43" – 0.59")
Outer Diameter (OD) Range	17 mm – 48 mm (≈0.67" – 1.89")
Thickness Range	3 mm – 10 mm (≈0.12" – 0.39")
Lip Material	NBR (Nitrile Butadiene Rubber)
Case / Skeleton Material	Steel (rigid metal case)
Temperature Range	Typically −40 °C to +120 °C (−40 °F to +248 °F)
Compatible Fluids	Petroleum-based oils, greases, ATF (mineral-based); see FAQ for synthetic oil notes
Max Operating Pressure	Generally up to 0.3 bar (4.4 psi) — confirm with equipment specs
Size Format	ID × OD × Thickness (mm)
Pack Quantity	5 PCS per order
Standard	TC metric profile (ISO / DIN compatible)
Color / Finish	See variant options
Country of Origin	Contact us to confirm

⚠️ Sizing Tip: Always measure your existing seal or shaft/bore dimensions with calipers. Do not rely solely on part numbers from different manufacturers, as tolerances can vary.

❓ Frequently Asked Questions

How do I choose the right TC oil seal size?

Measure the shaft diameter (ID), the bore diameter (OD), and the housing depth (thickness) with calipers. Match those three numbers to the variant listed as ID × OD × Thickness. For example, a 12 × 22 × 7mm seal fits a 12 mm (≈0.47") shaft inside a 22 mm (≈0.87") bore with a 7 mm (≈0.28") housing depth. When in doubt, size up on thickness rather than down to ensure full seating.

What material is the sealing lip made from?

The sealing lip is made from NBR (nitrile butadiene rubber), which generally handles petroleum-based oils, greases, and hydraulic fluids well. NBR is typically rated for continuous use up to around 120 °C (248 °F) and down to approximately −40 °C (−40 °F).

Can these seals be used outdoors or in wet environments?

The double-lip design provides a secondary dust and moisture barrier, making these seals suitable for moderately wet or dusty environments — such as agricultural equipment, outdoor power tools, and wheel hubs. For fully submerged or high-pressure water applications, confirm compatibility with your specific fluid and pressure rating before installation.

What shaft speed and pressure can these seals handle?

TC skeleton oil seals are generally designed for low-to-medium pressure applications (typically up to 0.3 bar / 4.4 psi). Shaft speed capacity depends on the seal diameter and lubrication; in most cases, surface speeds up to approximately 4–8 m/s are typical for seals in this size range. Consult your equipment manual for exact requirements.

Are these seals compatible with synthetic oils or ATF?

NBR generally performs well with mineral oils and many ATF fluids. Compatibility with fully synthetic oils (PAO or ester-based) varies — in most cases NBR is acceptable for short-term contact, but for long-term synthetic oil exposure, an FKM (Viton) seal is typically recommended. If you are unsure, check the fluid manufacturer's elastomer compatibility chart.

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

Lightly lubricate the sealing lip with the fluid it will retain. Press the seal squarely into the housing using a seal driver or a flat block — never tap one side only, as this can cock the seal and cause immediate leakage. Ensure the metal case sits flush with or slightly below the housing face. Avoid dragging the lip over sharp keyways or threads; use a chamfer or tape to protect the lip during installation.

How many seals come in each order?

Each listing is sold as a 5-piece pack (5 PCS). This gives you spares for future maintenance intervals or for sealing multiple shafts of the same size in one purchase — useful for fleet maintenance or equipment with multiple identical seals.

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

TC Oil Seal NBR Double Lip Rotary Shaft Seal — ID 11–15mm, Multiple Sizes (5-Pack)

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Beschreibung

TC Oil Seal NBR Double Lip — Stop Leaks on Rotary Shafts from 11 mm to 15 mm

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

📐 Technical Specifications — TC Skeleton Rotary Shaft Oil Seals

❓ Frequently Asked Questions

TC Oil Seal NBR Double Lip Rotary Shaft Seal — ID 11–15mm, Multiple Sizes (5-Pack)

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