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

Yes. The TC double-lip design includes a secondary dust lip that generally keeps water, dirt, and contaminants out of the bearing cavity, making these seals suitable for outdoor machinery, agricultural equipment, and other wet or dusty conditions.

Are these seals compatible with metric and inch shafts?

Most variants use metric dimensions. A few variants (e.g., 12.54 x 25.48 x 6.35mm and 15.88 x 25.4 x 6.35mm) correspond to inch-based shafts. Check the variant listing carefully and match the ID to your shaft diameter.

TC Oil Seal Ring FKM Double Lip Rotary Shaft Seal — ID 11mm to 19mm (2 PCS)

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TC Oil Seal Ring FKM Double Lip Rotary Shaft Seal — ID 11mm to 19mm (2 PCS)

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

Packing QTY (Piece): 2 PCS

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$3.10 USD

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In stock (500 units), ready to be shipped

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TC FKM Double Lip Oil Seal — Stop Leaks and Keep Contaminants Out

If you've ever dealt with a leaking gearbox, a seized bearing from dirt ingress, or a shaft seal that failed prematurely in heat or chemical exposure, you know how costly the wrong seal can be. Mechanics, equipment rebuilders, and DIY enthusiasts who work on engines, pumps, agricultural machinery, and industrial drives need a seal that holds up — not one that cracks, swells, or lets oil weep through after a few hundred hours.

Each pack contains 2 pieces of TC skeleton oil seals made from FKM (fluoroelastomer) with a steel skeleton reinforcement. Available in over 200 size combinations with inner diameters from 11mm (≈0.433") to 19mm (≈0.748"), outer diameters from 17mm to 47mm, and thicknesses from 4mm to 12mm. Select your exact ID × OD × Thickness from the variant dropdown above.

These TC double lip rotary shaft seals are well suited for small engine crankshaft sealing, gearbox and transmission output shaft sealing, and hydraulic pump shaft sealing — anywhere a rotating shaft passes through a housing that must retain oil and exclude dust, water, or debris.

ℹ️ Compatibility Note: These seals fit shafts with the inner diameter (ID) listed in the variant name. Always verify ID × OD × Thickness against your housing bore and shaft before ordering. A few variants match inch-based shaft dimensions — see the FAQ below.

✅ Key Features of These TC FKM Double Lip Oil Seals

🔩TC Double Lip Design — The primary lip retains oil while the secondary dust lip blocks dirt, water, and debris from reaching the bearing, extending service life in contaminated environments.
🌡️FKM Fluoroelastomer Compound — Resists petroleum oils, hydraulic fluids, and many chemicals; generally rated for continuous use from approximately -20°C to +200°C (-4°F to +392°F), outperforming standard NBR seals in high-heat applications.
🏗️Steel Skeleton Reinforcement — The internal metal case maintains dimensional stability under press-fit installation and prevents the seal from distorting under housing bore pressure.
📐200+ Size Variants in One Listing — ID 11–19mm with dozens of OD and thickness combinations, including both metric and select inch-equivalent sizes, so you can find the exact replacement without searching multiple listings.
⚙️Rotary Shaft Sealing Application — Designed for rotating shaft applications in engines, pumps, gearboxes, and agricultural equipment where dynamic sealing under continuous rotation is required.
📦2-Piece Pack — Each order ships as a 2 PCS pack, giving you a spare on hand for the next service interval or a second machine without placing a separate order.

📐 Technical Specifications — TC FKM Rotary Shaft Oil Seal

Seal Type	TC (Double Lip, Skeleton)
Lip Material	FKM (Fluoroelastomer / Viton®-type)
Reinforcement	Steel skeleton (metal case)
Inner Diameter (ID) Range	11mm (≈0.433") – 19mm (≈0.748")
Outer Diameter (OD) Range	17mm – 47mm (see variant options)
Thickness Range	4mm – 12mm (see variant options)
Number of Lips	2 (primary oil lip + secondary dust lip)
Operating Temperature	Typically -20°C to +200°C (-4°F to +392°F)
Fluid Compatibility	Petroleum oils, hydraulic fluids, many chemicals (confirm for specific fluids)
Application	Rotary shaft sealing — engines, pumps, gearboxes, agricultural equipment
Pack Quantity	2 PCS per pack
Dimension Standard	Metric (select variants correspond to inch equivalents)
Spring Type	See variant options / Contact us to confirm

⚠️ Sizing Tip: Use calipers to measure your shaft OD (= seal ID), housing bore ID (= seal OD), and housing depth (= seal thickness) before selecting a variant. Do not rely on part numbers alone — cross-reference all three dimensions.

❓ 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 all three dimensions to the variant listed. For example, a 15 x 28 x 7mm seal has a 15mm inner diameter (≈0.591"), 28mm outer diameter (≈1.102"), and 7mm thickness (≈0.276"). When in doubt, go by the shaft diameter first, then confirm OD and thickness fit your housing.

What does FKM mean and why does it matter for oil seals?

FKM (fluoroelastomer, also marketed as Viton®) is a synthetic rubber that generally withstands temperatures from about -20°C to +200°C (-4°F to +392°F) and resists petroleum oils, hydraulic fluids, and many chemicals better than standard NBR seals. It is typically the preferred choice for high-temperature engines, chemical pumps, or any application where the seal contacts aggressive fluids.

Can these TC oil seals be used outdoors or in wet, dusty environments?

Yes. The TC double-lip design includes a secondary dust lip that generally keeps water, dirt, and contaminants out of the bearing cavity. This makes these seals suitable for outdoor machinery, agricultural equipment, construction tools, and other wet or dusty conditions where a single-lip seal would allow ingress.

What shaft speed can these seals handle?

TC skeleton oil seals in this size range typically handle shaft surface speeds up to approximately 4–8 m/s depending on the specific size, lubrication, and operating temperature. For high-speed spindle or turbine applications, contact us to confirm suitability before ordering.

Are these seals compatible with both metric and inch shafts?

Most variants use metric dimensions. A few variants — such as 12.54 x 25.48 x 6.35mm (≈1/2" x 1" x 1/4") and 15.88 x 25.4 x 6.35mm (≈5/8" x 1" x 1/4") — correspond to inch-based shafts. Check the variant listing carefully and match the ID to your shaft diameter in millimeters or convert from inches.

How do I install a TC oil seal correctly?

Clean the housing bore and shaft. Apply a thin film of compatible grease to the seal lip and the shaft surface. Press the seal squarely into the bore using a seal driver or a flat block — never hammer directly on the seal face. Ensure the seal sits flush or slightly below the housing face. Avoid nicking the lip on sharp shaft edges; use a chamfer or installation sleeve if needed.

What is the difference between TC and SC oil seals?

TC seals have two sealing lips: a primary oil lip and a secondary dust/exclusion lip, making them suitable for environments with both oil retention and contamination exclusion needs. SC seals have a single lip and are generally used in cleaner environments where only oil retention is required. For most outdoor or industrial applications, TC is the more protective choice.

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

TC Oil Seal Ring FKM Double Lip Rotary Shaft Seal — ID 11mm to 19mm (2 PCS)

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Description

TC FKM Double Lip Oil Seal — Stop Leaks and Keep Contaminants Out

✅ Key Features of These TC FKM Double Lip Oil Seals

📐 Technical Specifications — TC FKM Rotary Shaft Oil Seal

❓ Frequently Asked Questions

TC Oil Seal Ring FKM Double Lip Rotary Shaft Seal — ID 11mm to 19mm (2 PCS)

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