TC Oil Seal Metric — Rotary Shaft Seal, TC4 Double Lip, ID 45–58mm
TC Oil Seal Metric — Rotary Shaft Seal, TC4 Double Lip, ID 45–58mm
TC Oil Seal Metric — Rotary Shaft Seal, TC4 Double Lip, ID 45–58mm
TC Oil Seal Metric — Rotary Shaft Seal, TC4 Double Lip, ID 45–58mm
TC Oil Seal Metric — Rotary Shaft Seal, TC4 Double Lip, ID 45–58mm
TC Oil Seal Metric — Rotary Shaft Seal, TC4 Double Lip, ID 45–58mm
TC Oil Seal Metric — Rotary Shaft Seal, TC4 Double Lip, ID 45–58mm
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TC Oil Seal Metric — Rotary Shaft Seal, TC4 Double Lip, ID 45–58mmTC Oil Seal Metric — Rotary Shaft Seal, TC4 Double Lip, ID 45–58mmTC Oil Seal Metric — Rotary Shaft Seal, TC4 Double Lip, ID 45–58mmTC Oil Seal Metric — Rotary Shaft Seal, TC4 Double Lip, ID 45–58mmTC Oil Seal Metric — Rotary Shaft Seal, TC4 Double Lip, ID 45–58mmTC Oil Seal Metric — Rotary Shaft Seal, TC4 Double Lip, ID 45–58mmTC Oil Seal Metric — Rotary Shaft Seal, TC4 Double Lip, ID 45–58mm

TC Oil Seal Metric — Rotary Shaft Seal, TC4 Double Lip, ID 45–58mm

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Price:
$5.05 USD
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In stock (500 units), ready to be shipped

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Description

TC Oil Seal Metric — Stop Leaks at the Source with TC4 Double-Lip Rotary Shaft Seals

When a worn or wrong-sized shaft seal lets oil weep past a gearbox, pump, or axle, the mess is just the beginning — contaminated bearings and seized components follow. Whether you're a mechanic rebuilding a differential, a maintenance tech servicing an industrial pump, or a DIYer restoring a vintage machine, finding the exact metric TC oil seal you need shouldn't require a trip to a specialty supplier.

Each seal in this listing follows the TC4 double-lip arrangement: a primary sealing lip retains lubricant, while a secondary dust-exclusion lip blocks contaminants from entering the housing. The sealing element is nitrile rubber (NBR) bonded to a carbon steel case, available in inner diameters from 45mm (≈1.77") to 58mm (≈2.28"), outer diameters from 55mm (≈2.17") to 110mm (≈4.33"), and widths of 6mm (≈0.24") to 12mm (≈0.47"). Sold individually (1 Pcs per order); select your exact ID×OD×Width combination from the variant dropdown.

Typical applications include automotive rear axle and differential seals, agricultural equipment gearbox seals, hydraulic pump shaft seals, electric motor end-cap seals, and general industrial rotary shaft sealing — anywhere a metric TC-type rotary shaft seal is specified.

ℹ️ Compatibility Note: Dimensions are metric (mm). Measure your shaft OD (= seal ID), housing bore ID (= seal OD), and housing depth (= seal width) before ordering. If you only have inch measurements, multiply by 25.4 to convert. Contact us if you need help confirming your size.

✅ Key Features of These TC Oil Seal Metric Rotary Shaft Seals

  • 🔒TC4 Double-Lip Design — Primary lip retains lubricant; secondary lip excludes dust and moisture, providing more reliable sealing than single-lip SC seals in contaminated environments.
  • 🧱Nitrile Rubber (NBR) Sealing Element — NBR is broadly compatible with petroleum-based oils, greases, and water, making these metric TC oil seals suitable for most automotive and industrial lubricants.
  • 🔩Carbon Steel Outer Case — The rigid steel shell provides a firm press-fit into the housing bore, resisting rotation and maintaining concentricity with the shaft during operation.
  • 📐250+ Size Combinations — Inner diameters from 45–58mm paired with outer diameters from 55–110mm and widths of 6–12mm cover a wide range of rotary shaft seal applications without custom ordering.
  • ⚙️Garter Spring-Loaded Lip — An internal garter spring maintains consistent radial lip pressure on the shaft surface, compensating for minor shaft runout and extending service life in dynamic sealing applications.
  • 🚚Ships from US Warehouse — Stocked domestically for faster delivery; no extended international lead times for your repair or maintenance project.

📐 Technical Specifications — TC4 Metric Rotary Shaft Oil Seal

Seal Type TC4 — Double Lip with Garter Spring
Inner Diameter (ID) Range 45mm (≈1.77") to 58mm (≈2.28")
Outer Diameter (OD) Range 55mm (≈2.17") to 110mm (≈4.33")
Width / Thickness Range 6mm (≈0.24") to 12mm (≈0.47")
Sealing Element Material Nitrile Rubber (NBR)
Case Material Carbon Steel
Lip Configuration Double lip (primary sealing + secondary dust exclusion)
Spring Type Garter spring (internal)
Operating Temperature Typically −40°C to +120°C (−40°F to +248°F) for NBR
Compatible Fluids Petroleum-based oils and greases, water (confirm for synthetic or chemical fluids)
Quantity per Order 1 Pcs (select size from variant dropdown)
Dimension Standard Metric (mm)
Installation Method Press-fit into housing bore
Country of Origin See variant options
⚠️ Size Confirmation: Always verify ID, OD, and width against your existing seal or housing drawing before ordering. Dimensions in the variant label follow the format ID×OD×Width (all in mm).

❓ Frequently Asked Questions

How do I choose the right TC oil seal size?

Measure three dimensions: the shaft outer diameter (this becomes the seal's ID), the housing bore inner diameter (this becomes the seal's OD), and the housing depth (this becomes the seal's width/thickness). The variant label format is ID×OD×Width in mm. For example, 50×70×10mm fits a 50mm shaft, a 70mm bore, and a 10mm deep housing.

If you only have inch measurements, multiply by 25.4 to convert — e.g., 2" shaft = 50.8mm, so select the nearest available ID such as 50mm or 52mm. A small interference fit on the lip is normal and expected.

What does TC4 lip arrangement mean?

TC4 refers to a double-lip seal design. The primary lip faces inward to retain lubricant (oil or grease) inside the housing. The secondary lip faces outward to exclude dust, dirt, and moisture from entering. This dual-lip configuration generally provides more reliable sealing than single-lip (SC) seals in environments with contamination or intermittent moisture exposure.

What material is the seal made from, and what fluids is it compatible with?

The sealing element is nitrile rubber (NBR) bonded to a carbon steel outer case. NBR is generally compatible with petroleum-based mineral oils, greases, hydraulic fluids, and water. It is typically not recommended for use with phosphate-ester hydraulic fluids, ketones, or highly aromatic fuels without verification. If you are using synthetic or specialty fluids, contact us to confirm compatibility before ordering.

Can these seals be used outdoors or in wet environments?

The secondary dust lip provides a degree of moisture exclusion, making TC4 seals suitable for moderately wet or outdoor applications such as agricultural equipment, marine auxiliary systems, and outdoor power equipment. However, the carbon steel case may develop surface rust if submerged or exposed to standing water for extended periods. For fully submerged or highly corrosive environments, a stainless-steel-cased or PTFE-lip variant is generally recommended — contact us for guidance.

What shaft speed and pressure can these seals handle?

TC-type rotary shaft seals are designed for dynamic sealing on rotating shafts. They are generally rated for low-to-moderate shaft surface speeds (typically up to 4–8 m/s) and low differential pressures (typically under 0.05 MPa / ~7 psi). For high-speed spindles, pressurized housings, or continuous-duty industrial applications, contact us to confirm the specific rating for your chosen size.

Are these metric seals compatible with imperial (inch) shafts?

All dimensions are metric (mm). To use on an imperial shaft, convert the shaft diameter to mm (multiply inches × 25.4) and select the nearest available ID. For example, a 2" shaft = 50.8mm — select the 50mm or 52mm ID variant. The seal lip is designed to flex and conform to the shaft, so a small size difference is generally acceptable. If you are unsure, contact us with your shaft and bore measurements.

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

Follow these steps for a clean installation:

  • Clean the housing bore and shaft surface thoroughly.
  • Lightly lubricate the seal lip with the same fluid it will retain.
  • Align the seal squarely with the bore opening — do not tilt.
  • Press the seal in using a seal driver or a flat block that contacts the outer case evenly. Never strike the seal face directly.
  • Seat the seal flush or slightly below the housing face.
  • When sliding over a shaft with a keyway or spline, protect the lip with tape or a sleeve to avoid nicking.
🛒 Select your ID × OD × Width size above, then add to cart — ships from our US warehouse.

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