70x132x12/30 mm TA Differential Pinion Oil Seal for Heavy-Duty Axles

70x132x12/30 mm TA‑Type Differential Pinion Oil Seal, Heavy‑Duty Axle — main photo

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

70x132x12/30 mm TA‑Type Differential Pinion Oil Seal, Heavy‑Duty Axle — photo 2 70x132x12/30 mm TA‑Type Differential Pinion Oil Seal, Heavy‑Duty Axle — photo 3 70x132x12/30 mm TA‑Type Differential Pinion Oil Seal, Heavy‑Duty Axle — photo 4

Key specs: Inner diameter mm: 70 | Outer diameter mm: 132 | Height mm: 12/30 | Material: NBR | Spec & Model: 70x132x12/30mm｜Material:NBR rubber lip + carbon‑steel painted stepped shell｜Structure:TA‑type double‑lip pinion oil seal with garter spring | Spec & Model: 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
  • Spec & Model: 70x132x12/30mm｜Material:NBR rubber lip + carbon‑steel painted stepped shell｜Structure:TA‑type double‑lip pinion oil seal with garter spring
  • Spec & Model: 70x132x12/30mm｜Material:NBR rubber lip + carbon‑steel painted stepped shell｜Structure:TA‑type double‑lip pinion oil seal with garter spring

Technical summary

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SpecValue
规格型号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).

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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 1. Confirm dimension: ID70mm, OD132mm, dual width12/30mm; check shaft and differential housing bore tolerance. 2. Standard NBR for regular heavy‑truck gear‑oil conditions; select FKM upgrade for high‑temperature working environment. 3. 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

There are only competing products—OEM and model—but not your part number. Can we use them as a reference for selection?

Sure. Please include the competing products/OEM model, key dimensions (ID × OD × height, in mm), and operating conditions (medium, temperature, pressure, rotational speed) to the inquiry form, and we will match them with equivalent specs items in our catalog.If dimensions are unavailable, please send model and photos/drawing first, and we will confirm the details. The final model selection will be based on the confirmation of drawing and operating conditions, and the official quotation will be subject to the written quotation order.

Does it support OEM/ODM along with privatization of packaging and tagging?

We support performing OEM/ODM in accordance with drawing/sample, as well as packaging and marking customization within the agreed upon scope.Please provide details on the target market’s compliance requirements and estimated annual volume. During the RFQ phase, we will confirm process feasibility, tooling costs, and mass production cycle time.

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.

What is your MOQ and delivery time?

In‑stock items: no MOQ, delivery within 3‑5 working days. Bulk stock order MOQ:300 pcs. Customized order MOQ:1000 pcs, lead‑time 30‑45 days.

How to avoid oil leakage after installation?

Repair worn pinion shaft and differential housing before fitting. Lubricate seal lip before pressing. Install in correct direction with proper sleeve press‑tool, never strike seal directly. Test shaft rotation after assembly. Improper installation is main cause of early leakage.

What is shelf‑life for NBR oil seal?

Shelf life is 24 months when stored in cool, dry, dark and ventilated warehouse, avoid ozone, high temperature and heavy squeezing.

Can I get FKM high‑temperature version for this size?

Yes, FKM material upgrade version is available for higher‑temperature and chemical‑resistant working conditions, please contact us for quotation.

Can you provide export documents for bulk order?

We can provide commercial invoice, packing list and certificate of origin for bulk export shipments to support customs clearance.

Can I mix different oil seals in one order?

Mixed wholesale is supported, you can combine multiple sizes of oil seals for one‑stop sourcing.

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