9mm ID TC Oil Seal | Metric R23 NBR Rotary Shaft Seal | Multiple Sizes

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9mm ID TC Oil Seal | Metric R23 NBR Rotary Shaft Seal | Multiple Sizes

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Size(ID x OD x Height): 9 x 16 x 4mm

Pack Quantity(Pcs): 1

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$3.93 USD

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9mm ID TC Oil Seal — Metric R23 NBR Rotary Shaft Seal for Reliable Leak-Free Performance

A leaking shaft seal on a gearbox, pump, or small engine can turn a minor maintenance task into a costly repair. Mechanics, equipment technicians, and serious DIYers who work on metric machinery need seals that are dimensionally accurate and made from a compound that holds up to oil, grease, and everyday grime — not generic parts that fail within a season.

These TC oil seals feature a 9mm inner diameter (≈3/8") and are available in 22 outer-diameter and height combinations ranging from 9×16×4mm to 9×30×7mm, covering a wide range of metric shaft housings. Each seal is constructed from NBR (nitrile butadiene rubber) with a metal case and conforms to the Metric R23 / DIN 3760 standard. The double-lip TC arrangement includes a primary sealing lip for oil retention and a secondary dust lip for contamination exclusion. Pack quantities of 1, 2, 5, 10, 15, 20, or 50 pieces are available to suit single repairs or workshop stock.

Typical applications include small gearboxes and reduction drives, lawn and garden equipment (mowers, tillers, tractors), light agricultural machinery, pumps, and compact motors — anywhere a metric rotary shaft seal with a 9mm bore is required. The standardized R23 profile makes these seals a straightforward replacement for OEM parts in many European and Asian-spec machines.

🔵 Compatibility: Metric R23 / DIN 3760 standard — fits metric shafts with 9mm (≈3/8") diameter. Verify OD and height against your housing before ordering.

✅ Key Features of These 9mm TC Oil Seals

🔩Double-Lip TC Design — The primary lip retains lubricant while the secondary dust lip blocks dirt and debris, making these seals well-suited for rotary shaft applications exposed to contamination.
🧪NBR Compound — Nitrile rubber provides solid resistance to petroleum-based oils, ATF, gear oil, and water, covering the fluid types most commonly found in gearboxes and small engines.
📐22 Size Options in One Listing — Inner diameter is fixed at 9mm; outer diameters range from 16mm to 30mm and heights from 4mm to 10mm, so you can match the exact housing dimensions without sourcing from multiple suppliers.
🏭Metal-Cased Construction — The rigid metal outer case maintains concentricity during press-fit installation and resists distortion under housing clamp loads, helping the seal seat correctly the first time.
📦Flexible Pack Quantities — Order 1 piece for a single repair or up to 50 pieces for workshop inventory. Per-unit cost decreases with larger packs, making bulk stocking cost-effective.
🌐Metric R23 / DIN 3760 Conformance — Standardized dimensions mean these seals are dimensionally interchangeable with OEM metric shaft seals in many European and Asian-manufactured machines.

📐 Technical Specifications — 9mm ID TC Rotary Shaft Oil Seal

Inner Diameter (ID)	9mm (≈3/8")
Outer Diameter (OD)	16mm – 30mm (see variant options)
Height / Width	4mm – 10mm (see variant options)
Lip Arrangement	TC (double lip — primary sealing lip + secondary dust lip)
Standard	Metric R23 / DIN 3760
Seal Material	NBR (Nitrile Butadiene Rubber)
Case Material	Metal (carbon steel)
Spring	Garter spring (typically included; contact us to confirm for specific size)
Operating Temperature	Typically −40°C to +120°C (−40°F to +248°F) for NBR
Fluid Compatibility	Petroleum-based oils, gear oil, ATF, water (verify for synthetic fluids)
Installation Method	Press-fit into housing bore
Pack Quantities Available	1, 2, 5, 10, 15, 20, 50 pcs
Country of Origin	Contact us to confirm

⚠️ Before ordering: Confirm the OD and height of your housing bore. The inner diameter is 9mm across all variants; the outer diameter and height vary by size option. When replacing an existing seal, measure the old part or check your equipment service manual.

❓ Frequently Asked Questions

How do I choose the right TC oil seal size?

Measure three dimensions: the shaft diameter (inner diameter / ID), the bore diameter (outer diameter / OD), and the housing depth (height). For this listing, the inner diameter is fixed at 9mm (≈3/8"). Select the OD and height that match your housing. For example, if your housing bore is 20mm wide and 5mm deep, choose the 9×20×5mm variant. When in doubt, consult your equipment manual or contact us to confirm.

What load or pressure can these oil seals handle?

TC-type NBR oil seals are generally rated for low-to-moderate shaft speeds and pressures typical of gearboxes, pumps, and motors. They are not designed for high-pressure hydraulic applications. Contact us to confirm suitability for your specific operating conditions.

Are these seals suitable for outdoor or wet environments?

NBR (nitrile rubber) offers good resistance to petroleum-based oils, water, and mild weather exposure. It is generally suitable for outdoor equipment such as lawn mowers, garden tractors, and light agricultural machinery. For prolonged UV or ozone exposure, a Viton seal may be more appropriate.

What shaft or housing standards are compatible with these seals?

These are metric-dimensioned seals conforming to the R23 / DIN 3760 standard. They are compatible with metric shafts and housings. Always verify the ID, OD, and height against your equipment specifications before ordering.

What is the difference between TC and SC lip arrangements?

TC seals have a double-lip design: a primary sealing lip that retains lubricant and a secondary dust lip that keeps contaminants out. SC seals have a single lip. TC is generally preferred for applications where both oil retention and dust exclusion are needed, such as gearboxes and outdoor power equipment.

How many seals come in each pack?

Each listing offers pack quantities of 1, 2, 5, 10, 15, 20, or 50 pieces. Select the quantity that suits your project — a single replacement or bulk workshop stock. Larger packs offer a lower per-unit cost.

Can I use these seals with synthetic oils or ATF?

NBR is generally compatible with mineral-based oils, ATF, and many common gear oils. Compatibility with full-synthetic oils varies by formulation. If your application uses aggressive synthetic fluids, verify NBR compatibility or consider a Viton alternative. Contact us if you need guidance on fluid compatibility.

🛒 Select your size and pack quantity above, then add to cart — ships from our US warehouse.

9mm ID TC Oil Seal | Metric R23 NBR Rotary Shaft Seal | Multiple Sizes

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Beschreibung

9mm ID TC Oil Seal — Metric R23 NBR Rotary Shaft Seal for Reliable Leak-Free Performance

✅ Key Features of These 9mm TC Oil Seals

📐 Technical Specifications — 9mm ID TC Rotary Shaft Oil Seal

❓ Frequently Asked Questions

9mm ID TC Oil Seal | Metric R23 NBR Rotary Shaft Seal | Multiple Sizes

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