TC Oil Seal 105–400mm NBR 70 Double Lip Skeleton Shaft Sealing Ring
TC Oil Seal 105–400mm NBR 70 Double Lip Skeleton Shaft Sealing Ring
TC Oil Seal 105–400mm NBR 70 Double Lip Skeleton Shaft Sealing Ring
TC Oil Seal 105–400mm NBR 70 Double Lip Skeleton Shaft Sealing Ring
TC Oil Seal 105–400mm NBR 70 Double Lip Skeleton Shaft Sealing Ring
TC Oil Seal 105–400mm NBR 70 Double Lip Skeleton Shaft Sealing Ring
TC Oil Seal 105–400mm NBR 70 Double Lip Skeleton Shaft Sealing Ring
TC Oil Seal 105–400mm NBR 70 Double Lip Skeleton Shaft Sealing Ring
TC Oil Seal 105–400mm NBR 70 Double Lip Skeleton Shaft Sealing Ring
TC Oil Seal 105–400mm NBR 70 Double Lip Skeleton Shaft Sealing Ring
TC Oil Seal 105–400mm NBR 70 Double Lip Skeleton Shaft Sealing Ring
TC Oil Seal 105–400mm NBR 70 Double Lip Skeleton Shaft Sealing Ring
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TC Oil Seal 105–400mm NBR 70 Double Lip Skeleton Shaft Sealing RingTC Oil Seal 105–400mm NBR 70 Double Lip Skeleton Shaft Sealing RingTC Oil Seal 105–400mm NBR 70 Double Lip Skeleton Shaft Sealing RingTC Oil Seal 105–400mm NBR 70 Double Lip Skeleton Shaft Sealing RingTC Oil Seal 105–400mm NBR 70 Double Lip Skeleton Shaft Sealing RingTC Oil Seal 105–400mm NBR 70 Double Lip Skeleton Shaft Sealing RingTC Oil Seal 105–400mm NBR 70 Double Lip Skeleton Shaft Sealing RingTC Oil Seal 105–400mm NBR 70 Double Lip Skeleton Shaft Sealing RingTC Oil Seal 105–400mm NBR 70 Double Lip Skeleton Shaft Sealing RingTC Oil Seal 105–400mm NBR 70 Double Lip Skeleton Shaft Sealing RingTC Oil Seal 105–400mm NBR 70 Double Lip Skeleton Shaft Sealing RingTC Oil Seal 105–400mm NBR 70 Double Lip Skeleton Shaft Sealing Ring

TC Oil Seal 105–400mm NBR 70 Double Lip Skeleton Shaft Sealing Ring

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Beschreibung

TC Double Lip Oil Seal 105–400mm — Stop Leaks on Large Rotating Shafts

Mechanics, equipment rebuilders, and maintenance professionals working on large gearboxes, agricultural machinery, industrial pumps, and heavy-duty axles know the frustration of a weeping shaft seal: oil on the floor, contaminated bearings, and an unplanned shutdown. Finding the right replacement seal in a wide size range — without ordering from an overseas catalog — is exactly the problem these TC double lip skeleton oil seals solve.

Each seal is a TC (double lip) skeleton-type design manufactured from NBR 70 (Nitrile Butadiene Rubber, 70 Shore A hardness) with a steel reinforcing ring. Sizes span from 105 mm to 400 mm inner diameter, with outer diameters and heights varying by variant — for example, 105 x 130 x 12 mm (≈4.13" x 5.12" x 0.47") up to 400 x 440 x 20 mm (≈15.75" x 17.32" x 0.79"). Available in 1, 2, or 5 piece quantities to match your job size.

Typical applications include agricultural tractor PTO shafts and rear axle seals, industrial gearbox output shaft seals, hydraulic pump shaft seals, and large electric motor bearing housings — anywhere a rotating shaft exits a lubricated housing and needs a reliable barrier against oil loss and dirt ingress.

🔵 Compatibility: Fits standard metric bore housings. Verify I.D. × O.D. × Height (mm) against your equipment's service manual before ordering. Thread standard: metric bore fit — no thread involved.

✅ Key Features of These TC Double Lip Skeleton Oil Seals

  • 🛡️Double Lip TC Design — The primary sealing lip retains lubricant while the secondary dust lip blocks dirt, debris, and moisture, reducing bearing contamination in agricultural and industrial rotating shaft applications.
  • 🔩Steel Skeleton Reinforcement — An internal steel ring maintains the seal's round shape during press-fit installation and resists distortion under operating loads, ensuring consistent contact pressure around the shaft.
  • 🌡️NBR 70 Compound — Nitrile rubber at 70 Shore A hardness offers broad compatibility with petroleum-based oils, gear oils, and greases across a typical service range of approximately -40°F to +250°F (-40°C to +120°C).
  • 📐Wide Size Range in One Listing — Covers inner diameters from 105 mm to 400 mm (≈4.1" to 15.7") with multiple O.D. and height combinations, making it practical to source replacement seals for large-frame machinery without special ordering.
  • 📦Flexible Quantity Options — Available as 1, 2, or 5 piece sets, so you can order a single replacement seal for a one-off repair or stock multiple pieces for fleet maintenance and planned overhauls.
  • ⚙️Press-Fit Installation — Designed for standard metric bore housings with a controlled interference fit; no adhesive or special tooling required beyond a seal driver or flat press plate, compatible with common gearbox and pump shaft seal replacement procedures.

📐 Technical Specifications — TC Skeleton Shaft Oil Seal

Seal Type TC (Double Lip, Skeleton)
Material NBR 70 (Nitrile Butadiene Rubber, 70 Shore A)
Reinforcement Steel skeleton ring
Inner Diameter (I.D.) Range 105 mm – 400 mm (≈4.13" – 15.75")
Outer Diameter (O.D.) Range See variant options (e.g., 130 mm – 440 mm)
Height (Axial Width) Range 12 mm – 20 mm (≈0.47" – 0.79"); see variant options
Lip Configuration Primary oil lip + secondary dust/exclusion lip
Typical Temperature Range Approx. -40°F to +250°F (-40°C to +120°C)
Fluid Compatibility Petroleum-based oils, gear oils, greases, water, diesel
Bore Fit Metric press-fit (interference fit into housing bore)
Quantity Options 1 Pcs / 2 Pcs / 5 Pcs
Color / Finish Contact us to confirm
Country of Origin Contact us to confirm
⚠️ Size Verification: Always confirm I.D. × O.D. × Height with calipers before ordering. Seal dimensions are listed in mm in the variant selector. If you need an inch-to-mm conversion, use 1" = 25.4 mm.

❓ Frequently Asked Questions

How do I choose the right TC oil seal size?

Measure the shaft diameter (I.D.), the bore diameter (O.D.), and the housing depth (Height) with calipers. Match all three dimensions to the variant listed as I.D. × O.D. × Height in mm. For example, a 120 × 150 × 12 mm seal fits a 120 mm (≈4.72") shaft, a 150 mm (≈5.91") bore, and a 12 mm (≈0.47") housing depth. When converting from inches: 1" = 25.4 mm, so a 5" shaft ≈ 127 mm.

What does "TC" mean on an oil seal?

TC designates a double-lip seal: one primary lip retains lubricant inside the housing, and one secondary lip (the dust lip) excludes contaminants from outside. This is the most widely used configuration for rotating shaft applications in gearboxes, pumps, and axles.

What temperature and pressure range can these seals handle?

NBR 70 generally handles temperatures from approximately -40°F to +250°F (-40°C to +120°C). These seals are designed for low-to-moderate pressure dynamic sealing on rotating shafts. For high-pressure applications, consult your equipment's service specifications to confirm suitability.

Are these seals suitable for outdoor or wet environments?

NBR 70 offers good resistance to petroleum-based oils, greases, and water. The secondary dust lip provides additional protection against moisture and debris ingress, making these seals generally suitable for outdoor machinery, agricultural equipment, and construction machinery. For prolonged saltwater or aggressive chemical exposure, verify fluid compatibility before use.

What fluids are compatible with NBR 70 oil seals?

NBR 70 is typically compatible with petroleum-based hydraulic oils, gear oils, engine oils, greases, water, and diesel fuel. It is generally not recommended for brake fluid (DOT 3/4), phosphate ester hydraulic fluids, or aromatic solvents. When in doubt, consult a fluid compatibility chart for nitrile rubber.

How do I install a TC skeleton oil seal correctly?

Clean the housing bore and shaft. Lightly lubricate the seal lip with the fluid being sealed. Press the seal squarely into the bore using a seal driver or flat plate — never hammer directly on the seal face. Ensure the seal sits flush or slightly below the housing face. Protect the lip from keyways or splines during installation using a sleeve or tape.

How do I choose between 12 mm, 14 mm, 15 mm, 16 mm, 18 mm, and 20 mm height options?

The height (axial width) must match your housing bore depth. Measure the depth of the seal pocket with a depth gauge. A seal that is too tall will not seat properly; one that is too short may rock or leak. When in doubt, refer to your equipment's service manual for the OEM seal part number and cross-reference the dimensions.

Can I use these seals on agricultural tractor axles and PTO shafts?

These TC double lip skeleton oil seals are commonly used in agricultural tractor rear axle housings, PTO shaft seals, and gearbox output shafts where metric bore dimensions apply. Always verify the I.D. × O.D. × Height against your tractor's service manual before installation.

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

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