TC Double-Lip FKM Oil Seal — Rotary Shaft Sealing Ring, ID 48mm–50mm

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TC Double-Lip FKM Oil Seal — Rotary Shaft Sealing Ring, ID 48mm–50mm

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Inner Diameter X Outer Diameter X Thickness: 48x62x10mm

Pack Quantity(Pcs): 1 Pcs

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$9.72 USD

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In stock (500 units), ready to be shipped

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TC Double-Lip FKM Oil Seal — Reliable Rotary Shaft Sealing for ID 48mm–50mm Shafts

When a leaking gearbox, pump, or axle seal causes downtime on the shop floor or in the field, finding an exact-fit replacement fast is critical. These TC double-lip FKM oil seals are designed for mechanics, maintenance technicians, and DIY equipment rebuilders who need a dependable rotary shaft sealing ring without hunting through multiple suppliers.

Each seal features a TC (double-lip) skeleton construction with an FKM (fluoroelastomer/Viton) sealing element bonded to a rigid steel case. Available inner diameters are 48mm (≈1.89") and 50mm (≈1.97"), with outer diameters ranging from 60mm (≈2.36") to 110mm (≈4.33") and thicknesses from 6mm (≈0.24") to 12mm (≈0.47"). Select your exact ID × OD × Thickness combination from the variant options above. Packs are available in 1, 3, or 5 pieces.

Typical applications include gearbox output shaft seals, hydraulic pump shaft seals, agricultural equipment axle seals, and industrial motor shaft seals — anywhere a metric rotary shaft requires a durable, heat-resistant lip seal to retain lubricant and exclude dust and moisture.

ℹ️ Compatibility Note: These seals use metric (mm) dimensions per ISO/DIN standards. Confirm your shaft OD, housing bore ID, and groove depth before ordering. If your dimensions fall between listed sizes, contact us to confirm the closest fit.

✅ Key Features of These TC Double-Lip FKM Oil Seals

🔒Dual-Lip TC Design — The primary lip retains lubricant while the secondary dust lip faces outward to block contaminants, making this rotary shaft sealing ring effective in dirty, wet, or outdoor environments.
🌡️FKM Fluoroelastomer Construction — The FKM sealing element withstands continuous temperatures typically from -20°C to +200°C (-4°F to +392°F), outperforming standard NBR seals in high-heat applications like engine bays and industrial machinery.
🛡️Rigid Steel Skeleton Case — The bonded steel inner skeleton maintains dimensional stability under press-fit installation, ensuring the seal seats squarely in the housing bore without distortion.
⚗️Broad Chemical Resistance — FKM material is generally compatible with petroleum oils, synthetic gear oils, hydraulic fluids, and many fuels — a practical choice for gearbox and pump shaft seal replacements.
📐Wide Size Range in One Listing — Inner diameters of 48mm and 50mm pair with outer diameters from 60mm to 110mm and thicknesses from 6mm to 12mm, covering a broad range of metric shaft seal replacement needs in a single product page.
📦Flexible Pack Quantities — Order 1, 3, or 5 pieces per pack — ideal whether you need a single replacement seal for a one-off repair or a small stock of axle seals for fleet maintenance.

📐 Technical Specifications — TC Double-Lip FKM Rotary Shaft Oil Seal

Seal Type	TC (Double-Lip Skeleton)
Seal Material	FKM (Fluoroelastomer / Viton)
Case Material	Carbon steel skeleton
Inner Diameter (ID)	48mm (≈1.89") or 50mm (≈1.97") — see variant options
Outer Diameter (OD)	60mm–110mm (≈2.36"–4.33") — see variant options
Thickness	6mm–12mm (≈0.24"–0.47") — see variant options
Operating Temperature	Typically -20°C to +200°C (-4°F to +392°F)
Pressure Rating	Generally suitable for low-to-medium pressure (typically ≤0.05 MPa static)
Dimensional Standard	Metric (ISO/DIN)
Lip Configuration	Primary sealing lip + secondary dust exclusion lip
Spring Type	Garter spring (contact us to confirm for specific size)
Pack Quantity	1 Pcs / 3 Pcs / 5 Pcs — see variant options
Fluid Compatibility	Petroleum oils, synthetic oils, gear oils, hydraulic fluids, many fuels (contact us to confirm for specific fluid)

⚠️ Before You Order: Measure your shaft OD (= seal ID), housing bore ID (= seal OD), and groove depth (= seal thickness). All three dimensions must match. If you are unsure, contact us with your measurements and we will help confirm the correct size.

❓ Frequently Asked Questions

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

Measure your shaft's outer diameter — this becomes the seal's inner diameter (ID). Then measure the bore housing inner diameter — this becomes the seal's outer diameter (OD). Finally, measure the housing groove depth to confirm the seal thickness fits. For example, a 50mm shaft in a 70mm bore with an 8mm groove depth needs a 50×70×8mm seal (≈1.97"×2.76"×0.31"). Always verify all three dimensions before ordering.

What load or pressure can these TC oil seals handle?

TC-type skeleton oil seals are generally designed for low-to-medium pressure applications. They are typically rated for static pressures up to approximately 0.05 MPa (7 psi) and are not intended for high-pressure hydraulic systems. For higher-pressure environments, a different seal type is recommended.

Are these FKM oil seals suitable for outdoor or high-temperature use?

Yes. FKM (fluoroelastomer/Viton) seals generally withstand continuous operating temperatures from approximately -20°C to +200°C (-4°F to +392°F), making them well-suited for high-heat environments such as engine compartments and industrial machinery. They also offer good resistance to UV, ozone, and weathering, making them suitable for outdoor equipment.

What shaft standards are these seals compatible with?

These TC oil seals are dimensioned in metric (mm) and are compatible with metric shafts and housings following ISO and DIN standards. They are not designed for inch-standard (imperial) shafts. Always confirm your shaft and housing are metric before ordering.

How do I install a TC skeleton oil seal correctly?

Clean the housing bore and shaft thoroughly. Lightly lubricate the seal lip with the fluid being sealed or a compatible grease. Press the seal squarely into the bore using a seal driver or a flat plate — never hammer directly on the seal face. Ensure the seal sits flush or slightly below the housing face. Avoid nicking or rolling the lip during installation.

Which fluids are FKM oil seals compatible with?

FKM seals are generally compatible with petroleum-based oils, synthetic oils, gear oils, hydraulic fluids, and many fuels. They typically resist aromatic hydrocarbons and chlorinated solvents better than standard NBR seals. They are generally not recommended for use with ketones, esters, or certain brake fluids — confirm compatibility with your specific fluid before use.

What is the difference between a TC and a SC oil seal?

A TC seal has two sealing lips — a primary lip that contacts the shaft to retain lubricant, and a secondary dust lip that faces outward to exclude contaminants. A SC seal has only one lip. TC seals are preferred in dirty or wet environments where both sealing and contamination exclusion are needed.

🛒 Select your size and quantity above, then add to cart — ships from our US warehouse.

TC Double-Lip FKM Oil Seal — Rotary Shaft Sealing Ring, ID 48mm–50mm

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TC Double-Lip FKM Oil Seal — Reliable Rotary Shaft Sealing for ID 48mm–50mm Shafts

✅ Key Features of These TC Double-Lip FKM Oil Seals

📐 Technical Specifications — TC Double-Lip FKM Rotary Shaft Oil Seal

❓ Frequently Asked Questions

TC Double-Lip FKM Oil Seal — Rotary Shaft Sealing Ring, ID 48mm–50mm

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