TC Oil Seal ID 70 72 75 78mm — FKM Rubber Dual Lip Rotary Shaft Seal
TC Oil Seal ID 70 72 75 78mm — FKM Rubber Dual Lip Rotary Shaft Seal
TC Oil Seal ID 70 72 75 78mm — FKM Rubber Dual Lip Rotary Shaft Seal
TC Oil Seal ID 70 72 75 78mm — FKM Rubber Dual Lip Rotary Shaft Seal
TC Oil Seal ID 70 72 75 78mm — FKM Rubber Dual Lip Rotary Shaft Seal
TC Oil Seal ID 70 72 75 78mm — FKM Rubber Dual Lip Rotary Shaft Seal
TC Oil Seal ID 70 72 75 78mm — FKM Rubber Dual Lip Rotary Shaft Seal
TC Oil Seal ID 70 72 75 78mm — FKM Rubber Dual Lip Rotary Shaft Seal
TC Oil Seal ID 70 72 75 78mm — FKM Rubber Dual Lip Rotary Shaft Seal
TC Oil Seal ID 70 72 75 78mm — FKM Rubber Dual Lip Rotary Shaft Seal
TC Oil Seal ID 70 72 75 78mm — FKM Rubber Dual Lip Rotary Shaft Seal
TC Oil Seal ID 70 72 75 78mm — FKM Rubber Dual Lip Rotary Shaft Seal
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TC Oil Seal ID 70 72 75 78mm — FKM Rubber Dual Lip Rotary Shaft SealTC Oil Seal ID 70 72 75 78mm — FKM Rubber Dual Lip Rotary Shaft SealTC Oil Seal ID 70 72 75 78mm — FKM Rubber Dual Lip Rotary Shaft SealTC Oil Seal ID 70 72 75 78mm — FKM Rubber Dual Lip Rotary Shaft SealTC Oil Seal ID 70 72 75 78mm — FKM Rubber Dual Lip Rotary Shaft SealTC Oil Seal ID 70 72 75 78mm — FKM Rubber Dual Lip Rotary Shaft SealTC Oil Seal ID 70 72 75 78mm — FKM Rubber Dual Lip Rotary Shaft SealTC Oil Seal ID 70 72 75 78mm — FKM Rubber Dual Lip Rotary Shaft SealTC Oil Seal ID 70 72 75 78mm — FKM Rubber Dual Lip Rotary Shaft SealTC Oil Seal ID 70 72 75 78mm — FKM Rubber Dual Lip Rotary Shaft SealTC Oil Seal ID 70 72 75 78mm — FKM Rubber Dual Lip Rotary Shaft SealTC Oil Seal ID 70 72 75 78mm — FKM Rubber Dual Lip Rotary Shaft Seal

TC Oil Seal ID 70 72 75 78mm — FKM Rubber Dual Lip Rotary Shaft Seal

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Beschreibung

TC Oil Seal ID 70–78mm — FKM Dual Lip Rotary Shaft Seal for Reliable Leak Prevention

When a worn or undersized shaft seal lets oil escape from a gearbox, pump, or motor, the result is contaminated lubricant, accelerated bearing wear, and unplanned downtime. Maintenance technicians and equipment rebuilders working with mid-to-large rotating assemblies need a seal that holds up to heat, oil, and ingress — not one that fails after a few hundred hours.

Each seal in this listing is sold individually (1 PCS per order) and follows the TC skeleton construction: a stamped steel case bonded to an FKM (fluoroelastomer) rubber body. Available in ID 70mm, 72mm, 75mm, and 78mm with OD options from 80mm (≈3.15") to 140mm (≈5.51") and thickness options from 5mm (≈0.20") to 13mm (≈0.51"). Select the exact ID × OD × Thickness combination from the variant dropdown to match your shaft and housing dimensions.

These FKM rubber rotary shaft seals are well-suited for gearbox output shaft sealing, hydraulic pump shaft seals in industrial equipment, and electric motor end-cap sealing in agricultural or manufacturing machinery — anywhere a metric TC oil seal with dual lip protection is required.

🔵 Compatibility Note: Dimensions follow metric (ISO/DIN) standards. Verify your shaft ID, housing bore OD, and groove depth (thickness) before ordering. All three dimensions must match for a proper seal fit.

✅ Key Features of These TC FKM Rotary Shaft Oil Seals

  • 🛡️ Dual Lip TC Profile — The primary lip retains lubricant while the secondary dust lip blocks dirt and moisture ingress, providing two-stage protection in a single seal body.
  • 🔥 FKM Fluoroelastomer Construction — Resists petroleum oils, hydraulic fluids, and elevated operating temperatures typically up to around 200°C (392°F), outperforming standard NBR seals in demanding environments.
  • 🔩 Steel Skeleton Reinforcement — The stamped steel case maintains dimensional stability under press-fit installation and prevents the seal from distorting under housing clamping forces.
  • 📐 Wide Size Range in One Listing — ID options of 70, 72, 75, and 78mm with OD from 80–140mm and thickness from 5–13mm cover a broad range of metric shaft seal applications without sourcing from multiple suppliers.
  • ⚙️ Metric-Standard Dimensions — All sizes conform to ISO/DIN metric conventions, making cross-referencing with OEM part numbers and equipment service manuals straightforward for gearbox and pump rebuilds.
  • 📦 Single-Piece Ordering Flexibility — Sold as 1 PCS per variant, so you can order exactly the quantity needed for a repair or rebuild without committing to bulk packs.

📐 Technical Specifications — TC Skeleton FKM Oil Seal

Seal Type TC (Double Lip with Dust Lip)
Inner Diameter (ID) 70mm (≈2.76"), 72mm (≈2.83"), 75mm (≈2.95"), 78mm (≈3.07")
Outer Diameter (OD) 80mm (≈3.15") to 140mm (≈5.51") — see variant options
Thickness 5mm (≈0.20") to 13mm (≈0.51") — see variant options
Lip Material FKM (Fluoroelastomer / Viton®-type)
Case / Skeleton Stamped steel
Lip Configuration Primary sealing lip + secondary dust exclusion lip
Temperature Range Typically −20°C to +200°C (−4°F to +392°F)
Media Compatibility Petroleum oils, hydraulic fluids, gear oils — contact us to confirm specific fluids
Dimension Standard Metric (ISO/DIN)
Packing Quantity 1 PCS per order
Installation Method Press-fit into housing bore
Country of Origin Contact us to confirm
⚠️ Before ordering: Measure your shaft OD (= seal ID), housing bore ID (= seal OD), and housing groove depth (= seal thickness). A mismatch in any dimension will result in leakage or installation failure.

❓ Frequently Asked Questions

How do I choose the right TC oil seal size?

Match the seal's ID to your shaft diameter and the OD to your housing bore. The thickness must fit your housing groove depth. For example, a 75×100×10mm seal fits a 75mm (≈2.95") shaft, a 100mm (≈3.94") housing bore, and a 10mm (≈0.39") groove. Always measure all three dimensions before ordering — do not rely on worn seal markings alone.

What does the dual lip design do on a TC oil seal?

The TC profile features a primary sealing lip that retains lubricant inside the housing and a secondary dust lip that blocks contaminants — dirt, water, and debris — from entering. This dual-barrier design is generally more effective than single-lip (SC) seals in environments where external contamination is a concern.

What is FKM rubber and why is it used instead of NBR?

FKM (fluoroelastomer, commercially known as Viton®) offers superior resistance to petroleum-based oils, hydraulic fluids, and elevated temperatures compared to standard NBR (nitrile) rubber. FKM seals are typically rated for continuous service up to around 200°C (392°F), while NBR is generally limited to around 120°C (248°F). For high-temperature gearboxes or aggressive fluid environments, FKM is the more durable choice.

Can these seals be used outdoors or in wet environments?

FKM rubber generally provides good resistance to weathering, ozone, and moisture exposure. The steel skeleton adds structural rigidity. For fully submerged applications or high-pressure washdown environments, contact us to confirm suitability for your specific conditions before ordering.

Are these oil seals compatible with metric shaft and housing standards?

Yes. All dimensions (ID × OD × Thickness) are in millimeters and follow ISO/DIN metric shaft seal conventions. They are designed to fit metric shafts and housings. If your equipment uses inch-based dimensions, contact us with your measurements and we can help identify the closest metric equivalent.

What equipment are these rotary shaft seals typically used in?

TC skeleton oil seals in the 70–78mm ID range are commonly used in gearbox output shafts, hydraulic pump shafts, electric motor end caps, agricultural equipment drives, and general industrial rotating machinery. The size range is typical for mid-to-large shaft applications in both light industrial and heavy-duty settings.

How do I install a TC oil seal without damaging the sealing lip?

In most cases, use a seal driver or flat press plate sized to the OD to press the seal in squarely and evenly. Lightly lubricate the sealing lip with clean oil before installation. Avoid hammering directly on the seal face or dragging the lip over sharp shaft edges, keyways, or splines — this is the most common cause of premature seal failure.

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

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