NBR TC Rotary Shaft Oil Seal with Garter Spring 42 45 50mm ID 55mm-100mm OD
NBR TC Rotary Shaft Oil Seal with Garter Spring 42 45 50mm ID 55mm-100mm OD
NBR TC Rotary Shaft Oil Seal with Garter Spring 42 45 50mm ID 55mm-100mm OD
NBR TC Rotary Shaft Oil Seal with Garter Spring 42 45 50mm ID 55mm-100mm OD
NBR TC Rotary Shaft Oil Seal with Garter Spring 42 45 50mm ID 55mm-100mm OD
NBR TC Rotary Shaft Oil Seal with Garter Spring 42 45 50mm ID 55mm-100mm OD
NBR TC Rotary Shaft Oil Seal with Garter Spring 42 45 50mm ID 55mm-100mm OD
NBR TC Rotary Shaft Oil Seal with Garter Spring 42 45 50mm ID 55mm-100mm OD
NBR TC Rotary Shaft Oil Seal with Garter Spring 42 45 50mm ID 55mm-100mm OD
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NBR TC Rotary Shaft Oil Seal with Garter Spring 42 45 50mm ID 55mm-100mm ODNBR TC Rotary Shaft Oil Seal with Garter Spring 42 45 50mm ID 55mm-100mm ODNBR TC Rotary Shaft Oil Seal with Garter Spring 42 45 50mm ID 55mm-100mm ODNBR TC Rotary Shaft Oil Seal with Garter Spring 42 45 50mm ID 55mm-100mm ODNBR TC Rotary Shaft Oil Seal with Garter Spring 42 45 50mm ID 55mm-100mm ODNBR TC Rotary Shaft Oil Seal with Garter Spring 42 45 50mm ID 55mm-100mm ODNBR TC Rotary Shaft Oil Seal with Garter Spring 42 45 50mm ID 55mm-100mm ODNBR TC Rotary Shaft Oil Seal with Garter Spring 42 45 50mm ID 55mm-100mm ODNBR TC Rotary Shaft Oil Seal with Garter Spring 42 45 50mm ID 55mm-100mm OD

NBR TC Rotary Shaft Oil Seal with Garter Spring 42 45 50mm ID 55mm-100mm OD

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Price:
$3.60 USD
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In stock (500 units), ready to be shipped

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Description

NBR TC Rotary Shaft Oil Seals — Reliable Lip Sealing for Rotating Shafts

When a leaking shaft seal turns a routine maintenance job into a messy, time-consuming ordeal, the right NBR TC rotary shaft oil seal makes all the difference. Mechanics, equipment technicians, and serious DIYers who work on gearboxes, pumps, axles, and motors need seals that hold up under continuous rotation without weeping oil or admitting contaminants.

These NBR TC rotary shaft oil seals feature a double-lip (TC) design with an integrated garter spring that maintains consistent radial lip pressure against the shaft. The sealing element is made from Nitrile Butadiene Rubber (NBR), a material well-suited for petroleum-based oils, greases, and mild hydraulic fluids. Inner diameters span 42 mm, 45 mm, and 50 mm (approximately 1.65"–1.97"), outer diameters range from 55 mm to 100 mm (approximately 2.17"–3.94"), and heights run from 7 mm to 12 mm (approximately 0.28"–0.47").

Typical applications include agricultural gearbox shaft seals, automotive differential and transmission seals, industrial pump shaft seals, and general-purpose rotating equipment where oil retention and dust exclusion are both required. Available in single-piece or multi-pack quantities to suit one-off repairs or workshop stock.

⚙️ Compatibility note: Always verify the shaft diameter, housing bore, and seal height against your equipment's service manual before ordering. Sizes listed are nominal; confirm fit with calipers.

✅ Key Features of These NBR TC Rotary Shaft Oil Seals

  • 🔩 Double-lip TC design — primary sealing lip retains oil; secondary dust lip blocks contaminants from entering the bearing cavity.
  • 🌀 Integrated garter spring — maintains consistent radial contact force on the shaft throughout the seal's service life, compensating for minor shaft runout.
  • 🛢️ NBR sealing element — Nitrile Butadiene Rubber resists petroleum-based oils, greases, and mild hydraulic fluids; suitable for operating temperatures typically from −30 °C to +100 °C (−22 °F to +212 °F).
  • 📐 Wide size range — ID 42–50 mm, OD 55–100 mm, height 7–12 mm; covers a broad range of gearbox, pump, and axle shaft applications in a single product listing.
  • 📦 Flexible pack quantities — order 1, 3, 5, 8, 10, 20, 30, or 50 pieces to match a single repair or workshop restocking needs without overspending.
  • 🔧 Standard press-fit installation — metal outer case allows installation with a seal driver or socket of matching OD; no adhesive required for most housing materials.

📐 Technical Specifications — TC Oil Seal

Seal Type TC (Double Lip with Garter Spring)
Sealing Material NBR (Nitrile Butadiene Rubber)
Outer Case Material Carbon steel (metal-encased)
Inner Diameter (ID) 42 mm / 45 mm / 50 mm — See variant options
Outer Diameter (OD) 55 mm – 100 mm — See variant options
Height (Width) 7 mm – 12 mm — See variant options
Operating Temperature Typically −30 °C to +100 °C (−22 °F to +212 °F)
Media Compatibility Petroleum-based oils, greases, mild hydraulic fluids
Pack Quantity Options 1 / 3 / 5 / 8 / 10 / 20 / 30 / 50 pcs
Installation Method Press-fit into housing bore
Spring Garter spring (integrated)

❓ Frequently Asked Questions

How do I choose the correct seal size for my application?

Measure the shaft diameter (this equals the seal ID), the housing bore diameter (this equals the seal OD), and the housing depth available for the seal (this equals the seal height). Use calipers for accuracy — nominal shaft sizes and actual machined dimensions can differ by tenths of a millimeter. Cross-reference all three dimensions with the variant options listed above before ordering.

What is the difference between a TC seal and a single-lip seal?

A TC (double-lip) seal has two sealing lips: the primary lip faces the oil side and retains lubricant, while the secondary lip faces outward and acts as a dust/dirt excluder. A single-lip seal only retains oil. TC seals are preferred in environments where both oil retention and contamination exclusion are needed, such as agricultural equipment, off-road vehicles, and outdoor machinery.

Is NBR rubber compatible with synthetic oils and ATF?

NBR performs well with conventional petroleum-based oils, mineral gear oils, and many ATF formulations. However, NBR has limited compatibility with some fully synthetic PAO-based oils and certain ester-based fluids. If your application uses a fully synthetic lubricant, verify the fluid's elastomer compatibility data sheet or consider an FKM (Viton) seal for those conditions.

What shaft surface finish and speed are these seals suited for?

TC oil seals generally require a shaft surface finish of Ra 0.2–0.8 µm (8–32 µin) for reliable sealing. Shaft hardness of HRC 30 or above is recommended to resist lip wear. These seals are suited for moderate rotational speeds — typically up to 4–6 m/s shaft surface speed depending on the specific size and operating conditions. Consult the equipment OEM specification if operating near speed limits.

Can I reuse a TC oil seal after removal?

Reusing a removed oil seal is not recommended. The sealing lip takes a compression set against the shaft during service, and the garter spring tension may be altered during removal. Installing a new seal ensures the lip geometry and spring force are within specification, which is especially important in high-speed or high-pressure applications.

How should I install a TC oil seal to avoid damage?

Clean the housing bore and lightly lubricate the outer case with a thin film of oil or grease before pressing in. Use a seal driver or a flat-faced socket that matches the OD of the seal to press it in squarely — never hammer directly on the seal face. Lightly coat the sealing lip with clean oil before sliding it over the shaft. Avoid dragging the lip over keyways or splines; use a shaft protector sleeve if needed.

Why would I order a multi-pack instead of a single seal?

Multi-packs (3, 5, 10, 20, 50 pcs) offer a lower per-unit cost and are practical for workshop stock, fleet maintenance programs, or equipment with multiple shaft seals of the same size. Having spares on hand also reduces downtime when a seal fails unexpectedly during a job.

🛒 Select your Size (ID × OD × Height) and Pack Quantity above, then add to cart.

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