TC Oil Seal NBR Double Lip — Rotary Shaft Seal ID 101–120mm (175+ Sizes)

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TC Oil Seal NBR Double Lip — Rotary Shaft Seal ID 101–120mm (175+ Sizes)

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Sizes (ID x OD x Thickness): 101 x 114 x 10mm

Packing QTY (Piece): 1 PCS

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$7.09 USD

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TC Oil Seal NBR Double Lip — Stop Shaft Leaks on Gearboxes, Pumps & Agricultural Equipment

A leaking shaft seal on a tractor PTO, industrial gearbox, or hydraulic pump doesn't just make a mess — it contaminates bearings, accelerates wear, and can take a machine out of service at the worst possible time. Mechanics, equipment technicians, and hands-on DIYers who maintain metric-shaft machinery need a rotary shaft seal that installs cleanly, holds its shape under press-fit, and keeps oil in while keeping dirt out.

Each seal in this listing is a TC-type skeleton oil seal constructed with an NBR (nitrile butadiene rubber) double-lip design and a rigid carbon steel casing. The primary sealing lip retains oil and grease; the secondary dust lip blocks contaminants from entering the bearing cavity. A garter spring maintains consistent radial lip pressure as the rubber wears. Available in 175+ metric size combinations: inner diameters (ID) from 101mm (≈3.98") to 120mm (≈4.72"), outer diameters (OD) from 110mm (≈4.33") to 215mm (≈8.46"), and thicknesses from 7mm (≈0.28") to 18mm (≈0.71"). Sold individually — 1 PCS per order.

Typical use cases include agricultural tractor axle ends and PTO shafts, industrial gearbox output shafts, centrifugal pump shaft sealing, and conveyor drive assemblies — anywhere a metric double lip rotary shaft seal rated for petroleum oil and grease retention is required.

🔵 Compatibility Note: These TC oil seals use standard metric dimensions (ID × OD × Thickness in mm). Verify all three measurements against your housing bore and shaft with calipers before ordering. See variant options for the complete size list.

✅ Key Features of These TC NBR Double Lip Oil Seals

🛡️Double-Lip TC Design — The primary lip retains lubricant while the secondary dust lip blocks dirt, moisture, and debris from reaching the bearing, extending service intervals on agricultural and industrial equipment.
🔩Rigid Carbon Steel Skeleton Casing — The steel outer casing maintains a consistent round profile during press-fit installation and resists distortion under housing bore pressure, ensuring a leak-free interference fit in metric bores.
🧪NBR Rubber Compound — Nitrile rubber provides solid resistance to petroleum-based oils, greases, and mineral hydraulic fluids across a generally serviceable temperature range of approximately -40°F to +250°F (-40°C to +120°C).
⚙️Garter Spring-Loaded Lip — An internal garter spring maintains consistent radial lip pressure against the shaft surface as the rubber wears over time, sustaining sealing performance throughout the seal's service life.
📐175+ Metric Size Combinations — With ID choices from 101mm to 120mm and a wide range of OD and thickness options, this listing covers a broad cross-section of metric rotary shaft seal applications without hunting across multiple suppliers.
🚚Ships from US Warehouse — Orders are fulfilled domestically, reducing transit time compared to overseas suppliers — useful when you need a replacement TC oil seal to get equipment back in service quickly.

📐 Technical Specifications — TC Skeleton NBR Double Lip Oil Seal

Seal Type	TC (Double Lip with Metal Skeleton)
Lip Material	NBR (Nitrile Butadiene Rubber)
Casing Material	Carbon steel skeleton
Number of Lips	2 — primary sealing lip + secondary dust lip
Spring Type	Garter spring (internal, radial load)
Inner Diameter (ID) Range	101mm – 120mm (≈3.98" – 4.72")
Outer Diameter (OD) Range	110mm – 215mm (see variant options)
Thickness Range	7mm – 18mm (see variant options)
Dimension Standard	Metric (mm)
Operating Temperature	Typically -40°C to +120°C (-40°F to +250°F)
Max Shaft Surface Speed	Typically up to 4–8 m/s (lubricated conditions)
Pressure Rating	Low-pressure static, typically ≤ 0.05 MPa (≈7 psi)
Fluid Compatibility	Petroleum oils, mineral greases, mineral hydraulic fluid
Fit Type	Press-fit into housing bore (interference fit)
Quantity per Order	1 PCS

⚠️ Before You Order: Measure your shaft diameter (ID), housing bore (OD), and housing depth (thickness) with calipers. If your exact size is not listed in the variants, contact us — we may have additional sizes available.

❓ Frequently Asked Questions

How do I choose the right TC oil seal size?

Measure the shaft inner diameter (ID), the housing bore outer diameter (OD), and the housing depth (thickness) with calipers. Match all three to the variant listed as ID × OD × Thickness. For example, a 110 × 140 × 13mm seal fits a 110mm (≈4.33") shaft in a 140mm (≈5.51") bore with a 13mm (≈0.51") housing depth. When in doubt, round to the nearest whole millimeter and contact us to confirm.

What is the pressure rating of these TC oil seals?

TC-type NBR lip seals are generally designed for low-to-medium pressure applications — typically up to 0.05 MPa (approximately 7 psi) of static pressure. They are not intended for high-pressure hydraulic circuits. For higher-pressure environments, a dedicated hydraulic rod or piston seal is recommended.

Can these seals be used outdoors or in wet environments?

NBR rubber offers good resistance to water, oil, and grease, making it suitable for many outdoor and wet-environment applications. However, NBR is not recommended for prolonged exposure to ozone, UV radiation, or ketone-based fluids. For extreme outdoor or chemical exposure, a Viton (FKM) seal may be more appropriate — contact us to discuss alternatives.

What shaft speed can these TC oil seals handle?

TC skeleton NBR oil seals are generally rated for shaft surface speeds up to approximately 4–8 m/s, depending on the specific size and lubrication conditions. On a 110mm shaft, 4 m/s corresponds to roughly 700 RPM. Consult your equipment manual or contact us to confirm suitability for high-speed applications.

Are these seals compatible with standard metric shaft sizes?

Yes. All dimensions follow standard metric sizing (mm). The ID dimension corresponds directly to the shaft diameter. These seals are compatible with metric shafts commonly found in agricultural equipment, gearboxes, pumps, and industrial machinery. They are not designed for inch-standard (imperial) shafts without confirming dimensional equivalence.

What does "TC" mean, and how is it different from SC or other seal types?

"TC" refers to a double-lip seal with a metal skeleton casing and a secondary dust lip in addition to the primary sealing lip. Compared to single-lip (SC) seals, TC seals provide better exclusion of contaminants like dirt and moisture, making them the preferred choice for most general-purpose rotary shaft sealing applications in agricultural and industrial equipment.

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

Press the seal squarely into the housing bore using a seal driver or a flat block — never hammer directly on the seal face or lip. Apply a thin film of clean oil or grease to the lip before installation to prevent dry-start damage. Ensure the shaft surface is smooth and free of burrs or sharp edges. The metal OD should sit flush with or slightly below the housing face after installation.

What fluids are these NBR oil seals compatible with?

NBR is generally compatible with petroleum-based oils, mineral hydraulic fluids, greases, water, and diesel fuel. It is not recommended for use with synthetic esters, ketones, aromatic hydrocarbons, or brake fluid. Contact us to confirm compatibility with specific fluids before ordering.

🛒 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 101–120mm (175+ Sizes)

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Beschreibung

TC Oil Seal NBR Double Lip — Stop Shaft Leaks on Gearboxes, Pumps & Agricultural Equipment

✅ Key Features of These TC NBR Double Lip Oil Seals

📐 Technical Specifications — TC Skeleton NBR Double Lip Oil Seal

❓ Frequently Asked Questions

TC Oil Seal NBR Double Lip — Rotary Shaft Seal ID 101–120mm (175+ Sizes)

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