120x140x12mm TC‑Type Oil Seal OEM 0139971447, Brown NBR Oil‑Resistant Wear‑Resistant Automotive Spare Parts
Model / SKU: 120‑140‑12‑TC‑NBR‑STD
Factory‑new TC‑type oil seal, dimension 120×140×12 mm, brown NBR rubber with garter spring, OEM reference 0139971447. Features excellent oil‑resistant and wear‑resistant performance. Suitable for heavy‑duty commercial vehicle shaft sealing, prevents lubricant leakage and blocks dust and splash‑water. High‑quality aftermarket automotive spare part for wholesale export.
Tags: NBR oil seal, shaft rotary seal, heavy‑duty commercial vehicle, TC fully rubber‑covered skeleton seal
Product photos
Key specs: Inner diameter mm: 120 | Outer diameter mm: 140 | Height mm: 12 | Material: NBR | specifications: 120x140x12mm｜OEM:0139971447｜Material:Brown NBR rubber + garter spring｜Structure:TC type fully rubber‑covered skeleton oil seal｜Fit for heavy‑duty commercial vehicle rotary shaft | Size: 120x140x12mm｜OEM:0139971447｜Material:Brown NBR rubber + garter spring｜Structure:TC type fully rubber‑covered skeleton oil seal｜Fit for heavy‑duty commercial vehicle rotary shaft
- Inner diameter mm: 120
- Outer diameter mm: 140
- Height mm: 12
- Material: NBR
- specifications: 120x140x12mm｜OEM:0139971447｜Material:Brown NBR rubber + garter spring｜Structure:TC type fully rubber‑covered skeleton oil seal｜Fit for heavy‑duty commercial vehicle rotary shaft
- Size: 120x140x12mm｜OEM:0139971447｜Material:Brown NBR rubber + garter spring｜Structure:TC type fully rubber‑covered skeleton oil seal｜Fit for heavy‑duty commercial vehicle rotary shaft
Technical summary
Product specifications. Refer to the approved drawing for dimensional tolerances and installation requirements.
| Spec | Value |
|---|---|
| Size | 120x140x12mm｜OEM:0139971447｜Material:Brown NBR rubber + garter spring｜Structure:TC type fully rubber‑covered skeleton oil seal｜Fit for heavy‑duty commercial vehicle rotary shaft |
Pricing: request a quote (B2B / wholesale).
Product details
This TC‑type fully rubber‑covered skeleton oil seal dimension 120×140×12 mm with OEM cross‑number 0139971447 is high‑quality aftermarket replacement part for heavy‑duty commercial vehicle rotary shaft.
Constructed with brown NBR rubber and built‑in garter spring, features good oil‑resistant and wear‑resistant properties. Effectively retain gear‑oil inside shaft assembly, avoid oil leakage under vibration during operation. Block dust, sand and splash‑water from entering internal components. Widely applied in vehicle repair workshops, domestic auto‑parts wholesale and cross‑border automotive‑parts export business.
Core functions
- Prevent gear‑oil leakage under heavy‑load driving vibration
- Isolate shaft assembly from dust, grit and splash‑water contamination
- TC fully rubber‑covered design for stable press‑fit installation into housing bore
- Reliable long‑term sealing performance for commercial vehicle powertrain components
Material and process
- Material：Brown NBR nitrile rubber, garter spring
- Structure：TC type fully rubber‑covered rotary shaft skeleton oil seal
- Key properties：Oil‑resistant, wear‑resistant, dust‑proof, anti‑vibration, anti‑aging
Working temperature:‑20℃ ~ +120℃
Manufacturing features
Integrated fully rubber‑covered structure, stable performance under chassis bumping vibration.
Precision‑machined sealing lip with garter spring maintains stable radial pre‑load pressure.
NBR compound offers good compatibility with commercial‑vehicle gear‑oil.
Upgrade option：FKM fluoro‑rubber variant for higher‑temperature heavy‑load working scenarios.
Application and compatibility
Product Type：TC fully rubber‑covered skeleton oil seal for heavy‑duty commercial vehicle
Key dimension：ID120mm × OD140mm, overall thickness12mm
OEM Part‑Number：0139971447
Compatible media：Transmission & axle gear‑oil, general chassis lubricants.
Fit application：Heavy‑duty commercial‑vehicle rotary shaft sealing.
Buyer reminder：This is aftermarket replacement spare part. Please verify shaft dimension, housing bore and OEM reference number before placing order. Dimension mismatch will result in oil leakage after installation.
Selection guide
Selection Tips
- Confirm dimension ID120mm, OD140mm, thickness12mm, TC fully rubber‑covered structure and OEM number 0139971447.
- Standard NBR version for normal gear‑oil environment; select FKM upgrade for high‑temperature heavy‑load working condition.
- Inspect shaft and housing bore before installation; repair shaft wear, corrosion and burrs. Damaged mating surfaces will trigger premature oil‑seal leakage.
Installation Steps
Preparation
Thoroughly clean housing bore and shaft surface, remove old seal residue, dirt and burrs.
Pre‑lubrication
Coat sealing lip and shaft surface with matched gear‑oil. Dry installation strictly forbidden; dry friction will damage sealing lip quickly.
Orientation Confirmation
Main sealing lip points toward oil cavity; dust‑proof side faces outward. Wrong installation direction leads to oil leakage and poor contamination‑resistance.
Vertical Press‑fit
Use dedicated press‑sleeve tool to press oil‑seal evenly and vertically. Never strike rubber body directly to avoid seal deformation and lip tearing.
Seating Inspection
Ensure seal sits fully flush inside housing bore without tilt.
Visual Check
Examine sealing lip for nicks and deformation; tiny hidden damage will cause seepage after commissioning.
Rotation Test
Manually rotate shaft assembly to confirm smooth rotation without abnormal binding resistance.
Packaging and delivery
- Inner package：Individual anti‑dust poly bag for each piece to protect sealing lip from scratch.
- Outer package：Reinforced export carton.
- Packing quantity：Adjustable per purchase requirement.
- MOQ：Stock items no MOQ, sample order supported.
- Lead‑time：Stock goods ship within 3‑5 working days; custom logo & export‑special‑packaging orders 30‑45 working days.
- Custom options：Custom logo printing available, custom‑order MOQ≥1000 pcs.
Shipping protection: Moisture‑proof, dust‑proof and anti‑collision packing to prevent deformation during transit.
FAQ
I only have a competitor/OEM part number—can you cross-reference?
Yes. Send the reference PN, ID×OD×height in mm, and duty (media, temperature, pressure, speed). We match equivalents in the catalog; the Cross Reference page also searches by keyword. Final selection follows drawing and duty confirmation — do not order from a photo alone.
Do you support OEM/ODM, private packing and marking?
Yes — OEM/ODM from drawings or samples, plus agreed packing and marking. Share target-market compliance needs and annual volume; RFQ confirms process, tooling cost and cadence. VKEFOT is the export brand of the Xingtai factory, not a trading desk.
TC vs TB oil seal: which should I specify?
For a rotary shaft that needs a dust lip plus oil lip, start with TC (rubber-covered dual-lip is common); TB is typical when a semi-metal case needs a stiffer bore fit. Shaft diameter, housing, runout and dust still decide. Send ID×OD×height in mm and speed on the RFQ — not only a competitor photo.
NBR vs FKM oil seal for hot engine oil?
Continuous engine-oil duty near 120°C or fuel exposure should be reviewed as FKM; general mineral oil at moderate temperature and cost-sensitive repair jobs often stay NBR. Brown color is not proof of FKM. The quote names the grade and temperature limit — do not order by color.
Oil seal vs O-ring: when do I use which?
Use a metal-cased radial shaft (skeleton) oil seal for rotating shafts; use an O-ring for static glands or reciprocating grooves. An O-ring on a rotary shaft wears out quickly. VKEFOT makes both — state motion type (rotary/static/reciprocating) and ID×OD×section on the RFQ.
Cassette seal vs dual-lip TC for dusty construction equipment?
Ag gearboxes and construction travel shafts with mud and long service intervals should be reviewed as cassette/combined seals; many automotive hub repair jobs stay dual-lip TC. Cassette packs are thicker and need different bore and axial space. A job-site photo is not enough — send ID×OD×height.
Xingtai oil seal factory vs trading company — how do I tell?
VKEFOT is the export brand of Xingtai Hanchi Intelligent Technology Co., Ltd. Mixing, vulcanization and outgoing inspection run in Xingtai, then goods export to Europe, North America, the Middle East and Southeast Asia. A trading desk usually cannot change compound or cut tooling. For OEM drawings, ask who runs the process and QC — not only catalog price.
What is a skeleton / radial shaft oil seal?
A skeleton oil seal is a metal-cased radial shaft seal: the rubber lip rides the shaft and the case holds interference in the bore. Common styles include TC, TB and TA. Minimum spec is ID×OD×height in mm, compound and duty. VKEFOT catalogs automotive and industrial shaft seals; trust the product-page dimensions.
What do ID, OD and height mean on an oil seal RFQ?
ID is inside diameter (shaft), OD is outside diameter (bore), height is axial width, all in millimetres. Missing any one blocks a cross-reference. Example: 56×112×8/10 means 56 mm ID, 112 mm OD, 8/10 mm height. Put those three numbers and the compound on the RFQ.
Which oil seal for an automotive wheel hub or differential pinion?
Hub repair jobs often use dual-lip TC; differential pinion shafts often need a secondary lip or split height (e.g. 8/10 or 12/22 mm). Use measured or OEM dimensions — not a marketplace title. VKEFOT application pages cover drivetrains and hubs; send an OEM number or ID×OD×height on the RFQ.
How to select oil seals for ag gearbox and PTO shafts?
Ag gearboxes and PTO shafts see dust and shock — prefer a dust lip or cassette, with NBR or FKM matched to gear oil and temperature. Do not force a passenger-car hub seal onto a PTO shaft. Send shaft, bore, height and whether mud/water is present, then RFQ.
What matters for pump, valve and compressor shaft seals?
Match media (oil, water, gas) and temperature first, then lip style and compound; do not default to cheap NBR for high speed or dry running. Put shaft runout and eccentricity on the RFQ. VKEFOT application cases include pumps, valves and compressors — still use measured sizes.
Does a brown oil seal mean it is FKM?
No. Brown NBR is common; color is not proof of FKM. For heat or fuel duty, write temperature and media on the RFQ so the factory names the grade. Ordering by color is a frequent cause of early leak.
Can you quote an oil seal from a photo only?
Not as a firm quote. We need at least ID×OD×height in mm, ideally compound and speed. A photo can show lip count and case style; it does not replace dimensions. Incomplete RFQs get a request for those three numbers before price.
If a new oil seal leaks quickly, is it always a bad seal?
Not always. Rough shaft finish, runout, cocked installation or the wrong compound also leak early. Check size and media/temperature match before blaming the part, then inspect the journal. Note time-to-fail (e.g. 50 hours) on the RFQ so we diagnose — do not just buy a cheaper seal.
What is needed for private-label OEM packing of oil seals?
Private packing and marking need annual volume, target-market compliance and artwork; tooling cost and cadence are confirmed on the RFQ — not a one-line “please OEM”. VKEFOT runs OEM/ODM after drawings or samples are complete.
Who is VKEFOT and how does it relate to Xingtai Hanchi?
VKEFOT manufactures oil seals, O-rings and custom rubber seals in Xingtai and exports to Europe, North America, Middle East and Southeast Asia. The manufacturer is Xingtai Hanchi Intelligent Technology Co., Ltd. Use this wording on quotes and certificates — do not invent alternate spellings of the brand.
What is OEM 0139971447 oil seal used for?
120x140x12 mm TC‑type oil seal, brown NBR material with oil‑resistant & wear‑resistant feature, aftermarket replacement for heavy‑duty commercial‑vehicle rotary shaft, prevents gear‑oil leakage and blocks dust.
What are full specifications?
Size:ID120mm × OD140mm, thickness12mm; OEM:0139971447; Material:Brown NBR rubber + garter spring; Structure:TC fully rubber‑covered skeleton seal; Working temperature:‑20℃ ~120℃; Application:Heavy‑duty commercial‑vehicle rotary shaft sealing.
Which vehicle fits OEM 0139971447 oil seal?
This TC‑type oil seal is aftermarket replacement for heavy‑duty commercial‑vehicle rotary shaft. Please confirm shaft dimension, housing bore and OEM cross‑number before purchase.