What thread or shaft standards are these seals compatible with?

These are metric TC oil seals and are compatible with metric shafts and housings following ISO/DIN standards. They are not designed for inch-standard (SAE) shafts unless the metric dimensions happen to match. Always verify ID, OD, and height against your actual shaft and housing measurements.

TC Oil Seal Metric — Rotary Shaft Seal ID 35–85mm NBR Double Lip

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TC Oil Seal Metric — Rotary Shaft Seal ID 35–85mm NBR Double Lip

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Size(mm)ID * OD * Height: 35*46*7mm

Packing Quantity: 1 PCS

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$6.77 USD

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In stock (500 units), ready to be shipped

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TC Oil Seal Metric — Stop Leaks on Shafts, Gearboxes & Pumps

When a worn or wrong-sized rotary shaft seal lets oil weep past a gearbox, axle, or pump housing, the mess and downtime add up fast. Mechanics, equipment owners, and serious DIYers who work on metric machinery need a seal that fits precisely and holds up — not a generic part that leaks again in a season.

Each listing is for 1 piece of a TC-type double-lip oil seal made from NBR (nitrile rubber) with a carbon steel spring and metal case. Sizes span ID 35mm–85mm (≈1.38″–3.35″), OD 46mm–125mm (≈1.81″–4.92″), and heights of 5mm–12mm (≈0.20″–0.47″) — over 200 metric combinations available. Select your exact ID × OD × Height from the variant dropdown above.

These metric TC oil seals are a direct-fit solution for small engine crankshaft seals, gearbox output shaft seals, agricultural equipment, lawn tractors, tillers, compressors, and light industrial pumps where a metric double-lip rotary shaft seal is required.

🔵 Compatibility: Fits metric shafts and housings per ISO/DIN standards. Always verify ID (shaft diameter) × OD (housing bore) × Height (groove depth) before ordering. Dimensions are in millimeters — see the size chart in the variant selector above.

✅ Key Features of These TC Metric Oil Seals

🔩Double-Lip TC Design — The primary lip retains oil while the secondary dust lip blocks dirt and moisture, making this seal suitable for exposed or contaminated environments like outdoor power equipment and agricultural machinery.
🧲Garter Spring Retention — An internal carbon steel garter spring maintains consistent radial lip pressure against the shaft, compensating for minor shaft runout and extending service life in rotary shaft seal applications.
🛡️NBR Rubber Construction — Nitrile rubber resists petroleum-based oils, gear oils, hydraulic fluids, and water, making these seals a reliable choice for gearbox output shaft seals, engine crankshaft seals, and pump shaft seals.
📐200+ Metric Size Options — With IDs from 35mm to 85mm and ODs up to 125mm, this single listing covers a wide range of metric rotary shaft seal replacements — no need to hunt across multiple SKUs.
🏗️Metal-Cased Outer Shell — The rigid metal outer case presses firmly into the housing bore for a secure, non-rotating fit, preventing the seal from spinning or walking out under vibration.
⚙️Drop-In Replacement Fit — Manufactured to metric dimensional standards, these seals are designed to replace OEM seals in small engines, tillers, compressors, and light industrial equipment without modification.

📐 Technical Specifications — TC Metric Rotary Shaft Oil Seal

Seal Type	TC (Double Lip with Garter Spring)
Material	NBR (Nitrile Butadiene Rubber) lip; Carbon steel case & spring
ID Range (Shaft Diameter)	35mm–85mm (≈1.38″–3.35″)
OD Range (Housing Bore)	46mm–125mm (≈1.81″–4.92″)
Height (Seal Width) Range	5mm–12mm (≈0.20″–0.47″)
Dimensional Standard	Metric (ISO/DIN compatible)
Operating Temperature	Typically -40°F to +250°F (-40°C to +120°C)
Fluid Compatibility	Petroleum oils, gear oils, hydraulic fluids, water
Max Static Pressure	Typically up to 0.05 MPa (≈7 psi); not for high-pressure hydraulics
Quantity per Order	1 PCS
Color	See variant options
Application	Gearboxes, crankshafts, pumps, axles, agricultural & small engine equipment

⚠️ Size Tip: The format is ID × OD × Height (all in mm). Measure your shaft OD for the seal ID, your housing bore for the seal OD, and your groove depth for the height. If you're unsure, contact us to confirm before ordering.

❓ Frequently Asked Questions

How do I choose the right TC oil seal size?

Match the seal's ID to your shaft diameter, the OD to your housing bore, and the height to the groove depth. For example, a 40×62×10mm seal fits a 40mm (≈1.57″) shaft in a 62mm (≈2.44″) bore with a 10mm (≈0.39″) groove. Always measure with calipers rather than relying on part numbers alone — even OEM numbers can vary by manufacturer revision.

What load or pressure can these seals handle?

TC-type NBR oil seals are generally rated for low-to-moderate shaft speeds and pressures typical of gearboxes, pumps, and axles — typically up to about 0.05 MPa (7 psi) static pressure. They are not designed for high-pressure hydraulic circuits. For dynamic high-pressure applications, a lip seal or hydraulic rod seal is generally more appropriate.

Can these seals be used outdoors or in wet environments?

NBR rubber offers good resistance to water, petroleum oils, and mild weather exposure. These seals work well in covered outdoor equipment such as lawn tractors, tillers, and generators. For prolonged marine or high-UV exposure, a Viton (FKM) seal is generally more suitable. The secondary dust lip on the TC design does provide added protection against moisture and debris ingress.

Are these metric seals compatible with inch-standard (SAE) shafts?

These are metric TC oil seals manufactured to ISO/DIN dimensional standards. They are not designed for SAE inch-standard shafts unless the metric dimensions happen to coincide with your shaft and housing measurements. Always verify ID, OD, and height against your actual hardware — do not rely on nominal inch-to-mm conversions alone.

What is the difference between a TC seal and a SC seal, and which should I choose?

A TC seal has two sealing lips — a primary oil-retention lip and a secondary dust/dirt exclusion lip — making it the better choice for most outdoor, agricultural, and general machinery applications. An SC seal has a single lip and is typically used in cleaner, controlled environments. For most DIY and equipment repair scenarios, TC is the more versatile and protective option.

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

Apply a thin film of clean oil or grease to the seal lip and housing bore before installation. Use a seal driver or a flat wooden block to press the seal in squarely — never hammer directly on the seal face. Ensure the shaft end is chamfered or deburred to avoid cutting the lip during installation. Press until the seal face is flush with or just below the housing surface.

What temperature range do these NBR seals handle?

NBR rubber typically performs reliably from approximately -40°F to +250°F (-40°C to +120°C). For applications with sustained temperatures above 250°F — such as turbocharger seals or high-performance engines — a Viton or silicone seal is generally recommended instead.

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

TC Oil Seal Metric — Rotary Shaft Seal ID 35–85mm NBR Double Lip

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Description

TC Oil Seal Metric — Stop Leaks on Shafts, Gearboxes & Pumps

✅ Key Features of These TC Metric Oil Seals

📐 Technical Specifications — TC Metric Rotary Shaft Oil Seal

❓ Frequently Asked Questions

TC Oil Seal Metric — Rotary Shaft Seal ID 35–85mm NBR Double Lip

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