What is the load or pressure rating of these seals?

TC skeleton oil seals are generally designed for low-to-medium pressure applications. They are typically rated for static pressures up to 0.05 MPa and are not intended for high-pressure hydraulic circuits. For higher-pressure needs, a hydraulic lip seal or O-ring face seal is generally recommended.

What shaft speed can these TC 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 lubricant, shaft finish, and operating temperature. Shaft surface roughness of Ra 0.2–0.8 µm is generally recommended for optimal seal life.

How do I install a TC skeleton oil seal without damaging it?

Use a seal driver or a flat press plate sized to the outer diameter. Apply a thin film of clean grease to the seal lip and bore before installation. Press the seal in squarely until flush with the housing face. Avoid hammering directly on the seal face or tilting during installation.

TC Skeleton Oil Seals ID 155–195mm | NBR Dual Lip Rotary Shaft Seal

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TC Skeleton Oil Seals ID 155–195mm | NBR Dual Lip Rotary Shaft Seal

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Sizes (ID x OD x Thickness): 155*175*10mm

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TC Skeleton Oil Seals 155–195mm — Stop Shaft Leaks Before They Stop You

Mechanics, equipment rebuilders, and industrial maintenance teams know the frustration of a weeping gearbox or a leaking axle seal that sidelines a machine. Finding the exact replacement TC skeleton oil seal in a large-bore size — especially in the 155mm to 195mm inner diameter range — often means days of waiting on special orders. This listing puts over 160 precision-matched sizes in stock and ready to ship from our US warehouse.

Each seal is a TC (double-lip) skeleton-type rotary shaft seal constructed with an NBR (nitrile rubber) sealing element bonded to a rigid steel skeleton case. The dual-lip design features a primary sealing lip that retains lubricant and a secondary dust exclusion lip that blocks contaminants. Sizes span inner diameters from 155mm (≈6.10") to 195mm (≈7.68"), outer diameters from 175mm to 240mm, and thicknesses from 8mm to 20mm — select your exact ID × OD × Thickness combination from the variant dropdown.

These TC oil seals are well-suited for rotary shaft sealing in industrial gearboxes, agricultural equipment final drives, heavy-duty axle housings, hydraulic pump shafts, and electric motor end caps where a reliable lubricant barrier and dust exclusion are required. The steel-reinforced skeleton maintains dimensional stability under press-fit installation, making them a dependable choice for large-bore shaft seal replacement in the field or shop.

🔵 Compatibility Note: These seals are sized by ID × OD × Thickness (mm). Measure your shaft diameter, bore diameter, and housing depth before ordering. Sizes are not interchangeable — confirm all three dimensions match your application. See the FAQ below for measurement guidance.

✅ Key Features of These TC Skeleton Oil Seals

🔩Dual-Lip TC Design — Primary lip retains lubricant; secondary lip excludes dust and debris, extending seal and bearing life in dirty or wet environments.
🛡️NBR Nitrile Rubber Construction — Resistant to mineral oils, gear lubricants, ATF, and water; suitable for operating temperatures typically from -40°F to +250°F (-40°C to +120°C).
⚙️Rigid Steel Skeleton Case — The metal-reinforced outer shell maintains roundness during press-fit installation into the housing bore, reducing the risk of distortion or misalignment.
📐160+ Size Variants in Stock — Inner diameters from 155mm to 195mm with multiple OD and thickness combinations, covering a wide range of large-bore rotary shaft seal replacement needs.
🏭Industrial and Agricultural Applications — Designed for gearbox output shafts, axle seals, pump shafts, and motor end caps where consistent radial lip contact is critical for leak-free operation.
🚚Ships from US Warehouse — In-stock inventory means faster delivery compared to overseas-only suppliers, reducing equipment downtime on time-sensitive repairs.

📐 Technical Specifications — TC Skeleton Oil Seals

Seal Type	TC (Double Lip) Skeleton Oil Seal
Inner Diameter (ID) Range	155mm – 195mm (≈6.10" – 7.68")
Outer Diameter (OD) Range	175mm – 240mm (≈6.89" – 9.45")
Thickness Range	8mm – 20mm (≈0.31" – 0.79")
Lip Material	NBR (Nitrile Butadiene Rubber)
Case / Skeleton Material	Carbon steel (metal-reinforced)
Lip Configuration	Dual lip — primary sealing lip + secondary dust exclusion lip
Operating Temperature	Typically -40°F to +250°F (-40°C to +120°C)
Fluid Compatibility	Mineral oils, gear oils, ATF, water (not for synthetic esters or ketones — confirm with fluid data sheet)
Max Shaft Speed	Typically up to 4–8 m/s (shaft surface speed; depends on lubricant and shaft finish)
Installation Method	Press-fit into housing bore; use seal driver or flat press plate
Packing	1 PCS per order (select quantity at checkout)
Size Selection	See variant options (ID × OD × Thickness)
Country of Origin	Contact us to confirm

⚠️ Before You Order: Measure your shaft (ID), bore (OD), and housing depth (thickness) with calipers. Do not rely on worn seal dimensions — old seals may have deformed. If you are unsure of your size, contact us with your equipment make, model, and shaft location.

❓ Frequently Asked Questions

How do I choose the right TC oil seal size?

Measure the shaft (inner diameter), the bore (outer diameter), and the housing depth (thickness) with calipers. Match all three dimensions to the variant listed as ID × OD × Thickness. For example, a 170*200*15mm seal fits a 170mm (≈6.69") shaft, 200mm (≈7.87") bore, and 15mm (≈0.59") housing depth. Always measure from the actual housing — do not rely on the old seal's dimensions if it has deformed.

What is the pressure rating of these TC skeleton oil seals?

TC skeleton oil seals are generally designed for low-to-medium pressure applications, typically up to approximately 0.05 MPa static pressure. They are not intended for high-pressure hydraulic circuits. For higher-pressure sealing needs, a hydraulic lip seal or O-ring face seal is generally more appropriate.

Can these seals be used outdoors or in wet environments?

NBR nitrile rubber offers good resistance to water, oils, and mild weather exposure. The secondary dust lip provides additional protection against moisture ingress. For prolonged outdoor, marine, or high-UV environments, a Viton (FKM) seal is generally a better long-term choice. In most standard outdoor equipment applications, NBR performs well.

What shaft surface speed can these seals handle?

In this large-bore size range, TC skeleton oil seals typically handle shaft surface speeds up to approximately 4–8 m/s, depending on the lubricant, operating temperature, and shaft surface finish. A shaft surface roughness of Ra 0.2–0.8 µm is generally recommended. Higher speeds may require a PTFE-lip or labyrinth seal design.

Are these seals compatible with synthetic gear oils and ATF?

NBR is compatible with most mineral-based oils, conventional gear oils, and ATF fluids. It is generally not recommended for use with synthetic esters, phosphate esters, or ketone-based fluids. If your application uses full-synthetic gear oil, confirm NBR compatibility with your fluid's technical data sheet before installation.

How do I install a TC skeleton oil seal correctly?

Use a seal driver or flat press plate sized to the outer diameter of the seal. Apply a thin film of clean grease to the seal lip and the housing bore before installation. Press the seal in squarely and evenly until it sits flush with the housing face. Avoid hammering directly on the seal face or allowing it to tilt during installation, as this can damage the lip or distort the skeleton case.

What is the operating temperature range for NBR oil seals?

NBR (nitrile rubber) seals typically operate reliably in a temperature range of approximately -40°F to +250°F (-40°C to +120°C). For applications with continuous temperatures above this range — such as near exhaust components or high-speed spindles — a silicone or Viton (FKM) seal is generally more appropriate.

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

TC Skeleton Oil Seals ID 155–195mm | NBR Dual Lip Rotary Shaft Seal

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Beschreibung

TC Skeleton Oil Seals 155–195mm — Stop Shaft Leaks Before They Stop You

✅ Key Features of These TC Skeleton Oil Seals

📐 Technical Specifications — TC Skeleton Oil Seals

❓ Frequently Asked Questions

TC Skeleton Oil Seals ID 155–195mm | NBR Dual Lip Rotary Shaft Seal

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