What is the load or pressure rating of these oil seals?

NBR TC oil seals are typically rated for low-to-moderate shaft speeds and static pressures up to approximately 0.3 bar (4.4 psi). For high-pressure or high-speed applications, please contact us to confirm suitability before ordering.

What pack sizes are available and which should I choose?

Each size is available in packs of 1, 2, 3, or 5 pieces. For a single repair or replacement, a 1-pack is sufficient. If you are servicing multiple machines or want spares on hand, a 3- or 5-pack typically offers a lower per-unit cost. Check the price per piece across pack options before ordering.

TC Oil Seal 100mm–105mm ID | NBR Double-Lip Rotary Shaft Seal (R23 / TC)

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TC Oil Seal 100mm–105mm ID | NBR Double-Lip Rotary Shaft Seal (R23 / TC)

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Size(ID x OD x Height): 100 x 110 x 5mm

Pack Quantity(Pcs): 1

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$10.27 USD

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TC Oil Seal 100mm–105mm ID — NBR Double-Lip Rotary Shaft Seal That Keeps Oil In and Contaminants Out

When a worn or incorrectly sized rotary shaft seal lets oil weep past the bearing housing, the resulting mess — and the bearing damage that follows — costs far more than the seal itself. Mechanics, equipment rebuilders, and plant maintenance teams working on gearboxes, pumps, agricultural machinery, and industrial drives need a seal they can trust to fit precisely and hold up under continuous rotation. These TC (R23) double-lip oil seals are engineered for exactly that job.

Each seal features a TC double-lip arrangement: a primary sealing lip retains lubricant on the oil side, while a secondary dust lip blocks dirt, water, and debris from the atmosphere side. The sealing element is molded from NBR (Nitrile Butadiene Rubber), bonded to a steel outer case for rigid press-fit installation. Inner diameters in this listing run from 100mm (≈3.94") to 105mm (≈4.13"), with outer diameters ranging from 110mm (≈4.33") to 150mm (≈5.91") and heights (widths) from 5mm (≈0.20") to 15mm (≈0.59") depending on the variant selected. Available in packs of 1, 2, 3, or 5 pieces.

Typical applications include agricultural tractor PTO shafts, industrial gearbox output shafts, hydraulic pump shaft seals, conveyor drive shafts, and general-purpose rotary shaft sealing where petroleum-based lubricants are present. The NBR compound is compatible with mineral oils, gear oils, and most hydraulic fluids — making these seals a practical choice for a wide range of rotary shaft seal replacement jobs.

ℹ️ Compatibility Note: Verify all three dimensions — Inner Diameter (ID), Outer Diameter (OD), and Height — before ordering. Use calipers to measure the shaft, bore, and housing depth. Dimensions are in millimeters (metric). Select your exact size from the variant dropdown above.

✅ Key Features of These TC Double-Lip NBR Oil Seals

🔒TC Double-Lip Sealing — The R23 / TC lip arrangement combines a primary oil-retention lip with a secondary dust-exclusion lip, providing dual-barrier protection that single-lip seals cannot match in contaminated environments.
🧪NBR Rubber Compound — Nitrile Butadiene Rubber offers solid resistance to petroleum-based oils, gear lubricants, hydraulic fluids, and water splash — covering the majority of rotary shaft seal replacement scenarios in industrial and agricultural equipment.
🔩Steel-Reinforced Outer Case — A rigid steel shell ensures the seal presses squarely and securely into the bore housing without distortion, maintaining concentricity between the shaft and seal lip for consistent contact pressure.
📐Wide Size Range in One Listing — Inner diameters of 100mm and 105mm with multiple OD and height combinations let you find the exact metric shaft seal size you need without ordering from multiple sources.
📦Flexible Pack Quantities — Choose 1, 2, 3, or 5 pieces per order. Multi-packs reduce per-unit cost for fleet maintenance, scheduled overhauls, or keeping spares on the shelf for gearbox and pump rebuilds.
🚚Ships from US Warehouse — Stocked domestically for faster delivery to US addresses, reducing downtime when you need a rotary shaft seal replacement quickly.

📐 Technical Specifications — TC Oil Seal (NBR, Double-Lip)

Seal Type	TC (R23) — Double Lip
Inner Diameter (ID)	100mm (≈3.94") or 105mm (≈4.13") — see variant options
Outer Diameter (OD)	110mm–150mm (≈4.33"–5.91") — see variant options
Height (Width)	5mm–15mm (≈0.20"–0.59") — see variant options
Sealing Material	NBR (Nitrile Butadiene Rubber)
Case Material	Steel (metal outer shell)
Lip Arrangement	Double lip — primary sealing lip + secondary dust lip
Operating Temperature	Typically −40°C to +120°C (−40°F to +248°F) for NBR
Compatible Fluids	Mineral oils, gear oils, hydraulic fluids, water splash
Shaft Speed	Contact us to confirm for your application
Pressure Rating	Typically up to ~0.3 bar (4.4 psi) static — contact us to confirm
Standard Reference	ISO 6194 / DIN 3760 (metric TC type)
Pack Quantity	1, 2, 3, or 5 pieces — see variant options
Country of Origin	See variant options

⚠️ Before You Order: Measure your shaft OD (= seal ID), bore ID (= seal OD), and housing depth (= seal height) with calipers. Do not rely on part numbers alone — cross-reference all three dimensions to the variant you select.

❓ Frequently Asked Questions

How do I choose the right TC oil seal size?

Measure the shaft diameter (ID), the bore diameter (OD), and the housing depth (Height) with calipers. Match all three dimensions to the variant listed as ID × OD × Height. For example, a 100mm shaft fitting into a 110mm bore with a 5mm housing depth corresponds to the 100 × 110 × 5mm variant (approx. 3.94" × 4.33" × 0.20"). If your measurement falls between two sizes, generally size up on OD and match ID exactly to the shaft.

What does TC lip arrangement mean, and how is it different from SC?

TC (also designated R23) refers to a double-lip seal: a primary sealing lip retains lubricant on the oil side, and a secondary dust lip prevents contaminants from entering from the atmosphere side. SC (single lip) seals have only the primary lip. TC seals are generally preferred in applications where both oil retention and dust exclusion are needed — such as gearboxes, agricultural equipment, and outdoor machinery.

What is the pressure and speed rating of these oil seals?

NBR TC oil seals are typically rated for low-to-moderate shaft speeds and static pressures up to approximately 0.3 bar (4.4 psi). Maximum shaft speed depends on shaft diameter, surface finish, and lubrication — in most cases, NBR seals are suitable for shaft surface speeds up to roughly 4–8 m/s. For high-pressure or high-speed applications, please contact us to confirm suitability before ordering.

Can these seals be used outdoors or in wet environments?

NBR offers good resistance to petroleum-based oils, greases, and water splash, making it generally suitable for outdoor use in moderate conditions. However, NBR is not recommended for prolonged exposure to ozone, UV radiation, or aromatic/chlorinated solvents. For harsh outdoor or chemical environments, a Viton (FKM) seal may be more appropriate. Contact us if you are unsure about fluid compatibility.

Are these seals compatible with metric shafts and standard bore housings?

Yes. All dimensions follow metric standards in millimeters, consistent with ISO 6194 / DIN 3760 guidelines for TC-type rotary shaft seals. They are designed to fit standard metric shaft and bore combinations. If you are working with inch-based equipment, convert your measurements before selecting a variant — for reference, 100mm ≈ 3.937" and 105mm ≈ 4.134".

How do I install a TC oil seal correctly?

Clean the bore and shaft before installation. Apply a thin film of clean oil or grease to the seal lip and shaft contact area. Press the seal squarely into the housing using a seal driver or flat press — never hammer directly on the seal face. The primary lip should face the oil (lubricant) side. Avoid cocking or tilting during installation to prevent lip damage and premature leakage.

Which pack size should I order — 1, 2, 3, or 5 pieces?

For a single repair or replacement, a 1-pack is sufficient. If you are servicing multiple machines, performing a scheduled overhaul, or want spares on hand, a 3- or 5-pack typically offers a lower per-unit cost. Compare the price per piece across pack options before ordering — the per-piece savings on a 5-pack can be significant for fleet maintenance programs.

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

TC Oil Seal 100mm–105mm ID | NBR Double-Lip Rotary Shaft Seal (R23 / TC)

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TC Oil Seal 100mm–105mm ID — NBR Double-Lip Rotary Shaft Seal That Keeps Oil In and Contaminants Out

✅ Key Features of These TC Double-Lip NBR Oil Seals

📐 Technical Specifications — TC Oil Seal (NBR, Double-Lip)

❓ Frequently Asked Questions

TC Oil Seal 100mm–105mm ID | NBR Double-Lip Rotary Shaft Seal (R23 / TC)

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