R23-TC Nitrile Oil Seal Double Lip Rotary Shaft Seal 12mm ID | 16–30mm OD | 3–10mm Height
R23-TC Nitrile Oil Seal Double Lip Rotary Shaft Seal 12mm ID | 16–30mm OD | 3–10mm Height
R23-TC Nitrile Oil Seal Double Lip Rotary Shaft Seal 12mm ID | 16–30mm OD | 3–10mm Height
R23-TC Nitrile Oil Seal Double Lip Rotary Shaft Seal 12mm ID | 16–30mm OD | 3–10mm Height
R23-TC Nitrile Oil Seal Double Lip Rotary Shaft Seal 12mm ID | 16–30mm OD | 3–10mm Height
R23-TC Nitrile Oil Seal Double Lip Rotary Shaft Seal 12mm ID | 16–30mm OD | 3–10mm Height
R23-TC Nitrile Oil Seal Double Lip Rotary Shaft Seal 12mm ID | 16–30mm OD | 3–10mm Height
R23-TC Nitrile Oil Seal Double Lip Rotary Shaft Seal 12mm ID | 16–30mm OD | 3–10mm Height
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R23-TC Nitrile Oil Seal Double Lip Rotary Shaft Seal 12mm ID | 16–30mm OD | 3–10mm HeightR23-TC Nitrile Oil Seal Double Lip Rotary Shaft Seal 12mm ID | 16–30mm OD | 3–10mm HeightR23-TC Nitrile Oil Seal Double Lip Rotary Shaft Seal 12mm ID | 16–30mm OD | 3–10mm HeightR23-TC Nitrile Oil Seal Double Lip Rotary Shaft Seal 12mm ID | 16–30mm OD | 3–10mm HeightR23-TC Nitrile Oil Seal Double Lip Rotary Shaft Seal 12mm ID | 16–30mm OD | 3–10mm HeightR23-TC Nitrile Oil Seal Double Lip Rotary Shaft Seal 12mm ID | 16–30mm OD | 3–10mm HeightR23-TC Nitrile Oil Seal Double Lip Rotary Shaft Seal 12mm ID | 16–30mm OD | 3–10mm HeightR23-TC Nitrile Oil Seal Double Lip Rotary Shaft Seal 12mm ID | 16–30mm OD | 3–10mm Height

R23-TC Nitrile Oil Seal Double Lip Rotary Shaft Seal 12mm ID | 16–30mm OD | 3–10mm Height

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Beschreibung

R23-TC Nitrile Oil Seal — Double Lip Rotary Shaft Seal for 12mm Shafts

When a worn or leaking shaft seal causes oil to seep past bearings, contaminate adjacent components, or leave puddles under equipment, the fix starts with the right replacement. Mechanics, equipment technicians, and serious DIYers working on gearboxes, pumps, motors, and agricultural machinery need a seal that installs cleanly and holds up under continuous rotation — not one that fails again in a few weeks.

Each seal in this listing is a TC-type double-lip nitrile (NBR) rotary shaft oil seal with a 12mm inner diameter (≈0.47"). The outer diameter ranges from 16mm (≈0.63") to 30mm (≈1.18") and the height from 3mm (≈0.12") to 10mm (≈0.39") depending on the variant selected. The metal-cased body provides rigid housing fit, while the nitrile rubber lips conform tightly to the shaft surface. Available in packs of 2, 5, 10, 20, 25, or 50 pieces to suit single repairs or workshop stock.

These seals are commonly used in small gearbox output shafts, electric motor end caps, hydraulic pump shafts, and garden equipment drivetrains — anywhere a 12mm shaft passes through a sealed housing and must retain lubricant while excluding dust and moisture.

🔵 Compatibility Note: These are metric TC oil seals sized for a 12mm shaft (inner diameter). Select the outer diameter and height that match your housing bore. Refer to your equipment's service manual or measure the existing seal before ordering.

✅ Key Features of These R23-TC Nitrile Oil Seals

  • 🔒Double-Lip TC Design — The primary lip retains lubricant; the secondary dust lip blocks dirt, water, and debris from reaching the bearing — a critical advantage over single-lip seals in dirty or wet environments.
  • 🧪Nitrile (NBR) Rubber Construction — Resistant to petroleum-based oils, gear lubricants, and greases across a typical operating range of -40°F to +250°F (-40°C to +120°C), making these seals suitable for most standard industrial and automotive fluids.
  • 🔩Metal-Cased Outer Shell — The rigid metal case presses firmly into the housing bore for a secure, non-rotating fit, reducing the risk of seal spin-out under vibration or pressure fluctuation.
  • 📐Wide Size Range on One Shaft Diameter — With OD options from 16mm to 30mm and heights from 3mm to 10mm, this listing covers a broad range of 12mm-shaft housings — useful for sourcing replacements across multiple machine models from a single supplier.
  • 📦Flexible Pack Quantities — Choose from 2 to 50 pieces per order. Bulk packs reduce per-unit cost for fleet maintenance shops, while small packs keep single-repair costs low for home mechanics replacing a rotary shaft seal on a single machine.
  • 🏭Metric Standard Dimensions — Dimensioned to metric standards (generally compatible with ISO 6194 / DIN 3760 profiles), making these seals straightforward to cross-reference against OEM part numbers for gearboxes, pumps, and motors using 12mm shafts.

📐 Technical Specifications — TC Nitrile Rotary Shaft Oil Seal

Seal Type TC (Double Lip)
Inner Diameter (ID) 12mm (≈0.47")
Outer Diameter (OD) 16mm – 30mm (≈0.63" – 1.18") — see variant options
Height / Width 3mm – 10mm (≈0.12" – 0.39") — see variant options
Lip Material Nitrile Rubber (NBR)
Case Material Metal (carbon steel shell)
Spring Type Garter spring (typically included on primary lip)
Operating Temperature Typically -40°F to +250°F (-40°C to +120°C)
Compatible Fluids Petroleum oils, gear oils, greases (see FAQ for exceptions)
Dimensional Standard Metric — generally compatible with ISO 6194 / DIN 3760
Pack Quantity 2 / 5 / 10 / 20 / 25 / 50 pcs — see variant options
Country of Origin Contact us to confirm
⚠️ Before ordering: Measure your existing seal or housing bore to confirm the OD and height. The inner diameter is fixed at 12mm across all variants. If you are unsure, contact us with your equipment make, model, and shaft location.

❓ Frequently Asked Questions

How do I choose the right oil seal size?

Measure three dimensions: the shaft diameter (inner diameter = 12mm for all variants in this listing), the housing bore diameter (outer diameter), and the housing depth (height/width). All three must match. For example, a 12 x 22 x 7mm seal has a 12mm ID (≈0.47"), 22mm OD (≈0.87"), and 7mm height (≈0.28"). When replacing an existing seal, read the size stamped on its face or measure it with calipers. If in doubt, consult your equipment's service manual or contact us.

What load or pressure can these oil seals handle?

TC-type nitrile oil seals are generally designed for low-to-medium pressure applications. They are typically suitable for shaft surface speeds up to approximately 4–6 m/s and static pressures up to around 0.05 MPa. For high-speed spindles or pressurized hydraulic circuits, contact us to confirm suitability before ordering.

Are these seals suitable for outdoor or wet environments?

Yes. The double-lip TC design includes a secondary dust lip that helps exclude water, mud, and contaminants from reaching the bearing. Nitrile rubber generally performs well across a wide temperature range (typically -40°F to +250°F). For prolonged outdoor or high-humidity use, ensure the seal is properly installed and the housing bore is clean and free of damage.

What shaft or bore standards are these seals compatible with?

These are metric-dimensioned TC oil seals compatible with standard 12mm metric shafts. They are generally interchangeable with seals conforming to ISO 6194 and DIN 3760 standards. Always verify that the OD and height match your specific housing bore before installation. If you have an OEM part number, contact us and we can help cross-reference.

Which fluids are these nitrile oil seals compatible with?

Nitrile (NBR) rubber is compatible with most petroleum-based oils, hydraulic fluids, gear oils, and greases. It is generally not recommended for use with brake fluids (DOT 3/4/5.1), phosphate ester hydraulic fluids, or strong aromatic solvents. If your application involves non-standard fluids, contact us to confirm compatibility before ordering.

How many seals should I order, and which pack size is right for me?

We offer packs of 2, 5, 10, 20, 25, and 50 pieces. For a single repair, a 2-pack gives you one spare. For workshop stock or fleet maintenance across multiple machines, the 10-, 20-, or 50-piece packs offer better per-unit value. Select your size and pack quantity from the variant dropdowns above.

How do I install a TC oil seal correctly?

1. Clean the housing bore and shaft thoroughly — remove all old sealant, debris, and corrosion. 2. Lightly lubricate the seal lip with the fluid it will be sealing. 3. Press the seal squarely into the bore using a seal driver or a flat block — never hammer directly on the seal face. 4. The seal should sit flush with or slightly below the bore face. 5. Avoid nicking or rolling the lip during installation, as lip damage is the most common cause of premature seal failure.

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

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