70x132x12/30 mm TA‑Type Differential Pinion Oil Seal, Heavy‑Duty Axle Shaft Seal
Model / SKU: SKU-20260824-0767
Heavy‑duty TA‑type pinion oil seal size 70x132x12/30 mm, two‑tone painted stepped metal housing, NBR rubber lip. Designed for heavy‑truck differential / axle pinion shaft, retains gear oil and blocks mud, water and dust. Available for stock and bulk export orders.
Tags: 70x132x12/30 oil seal, TA pinion oil seal, truck differential seal, heavy‑duty axle seal, commercial vehicle sealing parts
Product photos
Key specs: Inner diameter mm: 70 | Outer diameter mm: 132 | Height mm: 12/30 | Material: NBR | specifications: 70x132x12/30mm｜Material:NBR rubber lip + carbon‑steel painted stepped shell｜Structure:TA‑type double‑lip pinion oil seal with garter spring | Size: 70x132x12/30mm｜Material:NBR rubber lip + carbon‑steel painted stepped shell｜Structure:TA‑type double‑lip pinion oil seal with garter spring
- Inner diameter mm: 70
- Outer diameter mm: 132
- Height mm: 12/30
- Material: NBR
- specifications: 70x132x12/30mm｜Material:NBR rubber lip + carbon‑steel painted stepped shell｜Structure:TA‑type double‑lip pinion oil seal with garter spring
- Size: 70x132x12/30mm｜Material:NBR rubber lip + carbon‑steel painted stepped shell｜Structure:TA‑type double‑lip pinion oil seal with garter spring
Technical summary
Product specifications. Refer to the approved drawing for dimensional tolerances and installation requirements.
| Spec | Value |
|---|---|
| Size | 70x132x12/30mm｜Material:NBR rubber lip + carbon‑steel painted stepped shell｜Structure:TA‑type double‑lip pinion oil seal with garter spring |
Pricing: request a quote (B2B / wholesale).
Product details
This 70x132x12/30 mm TA‑type stepped‑shell pinion oil seal is heavy‑duty sealing component for heavy‑truck differential pinion shaft / axle shaft applications.
Stepped two‑tone painted metal outer shell provides firm press‑fit inside differential housing. Double‑lip with garter spring maintains consistent lip pressure on rotating shaft. It keeps gear oil inside differential housing, and prevents mud, splash‑water, road dust entering axle assembly, protects bearings and gear set from contamination damage.
Aftermarket heavy‑duty replacement part, widely used for commercial trucks, heavy‑duty logistics vehicles. Suitable for auto‑parts wholesalers, repair workshops and overseas bulk procurement.
Core functions
- Gear‑oil retention: Prevent differential gear‑oil leakage
- Mud & water exclusion: Resist splash‑water, mud and road‑grit ingress
- Stepped metal shell: Anti‑deformation during press‑fit installation
- Garter‑spring pre‑load: Stable sealing pressure under vibration and medium pressure
Material and process
- Material：NBR nitrile rubber sealing lip, painted carbon‑steel stepped metal shell, stainless steel garter spring
- Structure：TA‑type stepped‑housing double‑lip pinion oil seal
- Key properties：Gear‑oil resistant, mud‑water resistant, vibration‑resistant, anti‑aging
Working temperature:‑20℃ ~ +120℃
Manufacturing features
- High‑temperature vulcanization bonding between rubber lip and metal shell to avoid delamination under vehicle vibration.
- Precision‑ground sealing lip reduces friction heat and extends service life under continuous rotating‑shaft operation.
- Two‑tone anti‑rust paint treatment for stepped outer shell, improves storage performance in humid environment.
- NBR compound formula compatible with heavy‑duty vehicle gear‑oil and transmission grease.
Material upgrade option: FKM fluoro‑rubber variant for higher‑temperature or harsh chemical‑contact working scenarios.
Application and compatibility
Product Type：Heavy‑duty TA‑type differential pinion / axle shaft oil seal for commercial heavy‑truck
Key dimension：ID 70mm × OD 132mm × dual width 12/30mm
Compatible media：Heavy‑duty gear‑oil, transmission grease.
Working conditions: Truck differential, resist vibration, mud, splash‑water, medium pressure.Not suitable for：Strong corrosive solvents, extreme ultra‑high‑temperature special‑purpose equipment.
Buyer reminder：This is aftermarket replacement seal. Please verify shaft diameter, housing bore dimension and working condition before placing order. Mismatched dimension will cause oil‑leakage after installation.
Selection guide
Selection Tips
- Confirm dimension: ID70mm, OD132mm, dual width12/30mm; check shaft and differential housing bore tolerance.
- Standard NBR for regular heavy‑truck gear‑oil conditions; select FKM upgrade for high‑temperature working environment.
- Inspect pinion shaft and housing bore before installation; repair grooves, rust and burrs. Damaged mating surfaces will lead to early leakage.
Installation Steps
Preparation
Thoroughly clean housing bore and pinion‑shaft surface, remove old seal residue, gear‑oil dirt, metal chips and burrs.
Pre‑lubrication
Coat sealing lip and shaft contact surface with matching heavy‑duty gear‑oil. Dry installation is strictly forbidden; dry friction will burn sealing lip quickly.
Orientation Confirmation
Main sealing lip faces differential gear‑oil chamber side; dust‑exclusion lip faces outward towards atmosphere. Wrong installation direction will cause direct oil‑leakage and lose mud‑proof function.
Vertical Press‑fit
Use suitable press‑sleeve tool to press oil‑seal evenly and vertically. Never strike rubber lip directly to avoid shell deformation and lip tearing.
Seating Inspection
Ensure oil‑seal sits fully flush inside housing bore without tilt.
Visual Check
Inspect sealing lip for tears and shell deformation. Tiny invisible damage triggers oil seepage after commissioning.
Rotation Test
Manually rotate pinion shaft to confirm smooth movement without abnormal binding resistance. Re‑assemble if abnormal resistance occurs.
Packaging and delivery
- Inner package：Individual anti‑dust poly bag for each unit to protect sealing lip from scratch.
- Outer package：Reinforced heavy‑duty export carton.
- Packing quantity：50‑200 pcs per carton, adjustable per order requirement.
- MOQ：No MOQ for stock items, sample order acceptable; bulk stock order MOQ:300 pcs.
- Lead‑time：Stock items ship within 3‑5 working days; custom color, logo and export‑packaging orders 30‑45 working days.
- Custom options：Custom logo printing, special color and export‑oriented packaging available, custom order MOQ≥1000 pcs.
Shipping protection: Moisture‑proof, dust‑proof and compression‑resistant packing to prevent seal 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 this 70x132x12/30 oil seal used for?
This TA‑type stepped‑shell pinion oil seal is heavy‑duty replacement for heavy‑truck differential pinion / axle shaft, retains gear‑oil and blocks mud‑water ingress for commercial vehicle drivetrain.
What are full specifications for this oil seal?
Size: ID70mm × OD132mm × width12/30 mm; Material:NBR lip + anti‑rust painted stepped carbon‑steel shell + garter spring; Working temperature:‑20℃ ~ 120℃; Application: Heavy‑truck differential pinion shaft.
Do you support custom logo and export packaging?
Yes, custom logo, color and export‑oriented packaging are available. Custom MOQ is 1000 pieces with production lead‑time 30‑45 working days.