110.25x145x15.6mm Cassette Differential Oil Seal for Trucks

110.25x145x15.6mm Cassette Oil Seal, Premium Differential Oil Seal For — main photo

Factory‑new cassette‑style differential oil seal, dimension 110.25×145×15.6 mm, NBR rubber construction with garter spring. Designed for commercial vehicle drive axle differential, retains gear oil and blocks mud, dust and splash‑water. Premium aftermarket spare part for auto repair, available for wholesale export.

Tags: NBR oil seal, drive axle differential seal, heavy‑duty commercial vehicle, cassette composite seal

Product photos

110.25x145x15.6mm Cassette Oil Seal, Premium Differential Oil Seal For — photo 2 110.25x145x15.6mm Cassette Oil Seal, Premium Differential Oil Seal For — photo 3 110.25x145x15.6mm Cassette Oil Seal, Premium Differential Oil Seal For — photo 4

Key specs: Inner diameter mm: 110.25 | Outer diameter mm: 145 | Height mm: 15.6 | Material: NBR | Spec & Model: 110.25x145x15.6mm｜Material:NBR rubber + garter spring｜Structure:RWDR‑KASSETTE cassette composite oil seal｜Fit for heavy‑duty commercial vehicle drive axle differential | Spec & Model: 110.25x145x15.6mm｜Material:NBR rubber + garter spring｜Structure:RWDR‑KASSETTE cassette composite oil seal｜Fit for heavy‑duty commercial vehicle drive axle differential

  • Inner diameter mm: 110.25
  • Outer diameter mm: 145
  • Height mm: 15.6
  • Material: NBR
  • Spec & Model: 110.25x145x15.6mm｜Material:NBR rubber + garter spring｜Structure:RWDR‑KASSETTE cassette composite oil seal｜Fit for heavy‑duty commercial vehicle drive axle differential
  • Spec & Model: 110.25x145x15.6mm｜Material:NBR rubber + garter spring｜Structure:RWDR‑KASSETTE cassette composite oil seal｜Fit for heavy‑duty commercial vehicle drive axle differential

Technical summary

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SpecValue
规格型号110.25x145x15.6mm｜Material:NBR rubber + garter spring｜Structure:RWDR‑KASSETTE cassette composite oil seal｜Fit for heavy‑duty commercial vehicle drive axle differential

Pricing: request a quote (B2B / wholesale).

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Product details

This cassette‑type differential oil seal dimension 110.25×145×15.6 mm is aftermarket replacement part for heavy‑duty commercial vehicle drive axle differential. Adopts integrated cassette composite structure with partial metal shell and built‑in garter spring. Effectively holds drive‑axle gear‑oil inside differential housing, prevents gear‑oil leakage under road vibration. Blocks mud, sand, dust and splash‑water from invading differential chamber. Widely used for vehicle repair workshops, domestic auto‑parts wholesale and cross‑border commercial‑vehicle‑parts export business. Core functions Prevent differential gear‑oil leakage under heavy‑load driving vibration Isolate differential assembly from mud, grit and splash‑water contamination Integrated cassette profile for stable press‑fit installation into axle housing bore Reliable sealing performance for long‑distance heavy‑duty transportation

Material and process

Material ：NBR nitrile rubber, partial metal shell, garter spring Structure ：RWDR‑KASSETTE integrated cassette rotary shaft oil seal Key properties ：Gear‑oil resistant, mud‑proof, anti‑vibration, anti‑aging Working temperature:‑20℃ +120℃ Manufacturing features Vulcanized cassette composite structure, stable performance under chassis bumping vibration. Precision‑formed sealing lip with garter spring maintains consistent radial pre‑load pressure. NBR compound compatible with commercial‑vehicle drive‑axle gear‑oil. Upgrade option ：FKM fluoro‑rubber variant for higher‑temperature heavy‑load working scenarios.

Application and compatibility

Product Type ：Cassette‑type drive‑axle differential oil seal for heavy‑duty commercial vehicle Key dimension ：ID110.25mm × OD145mm, overall thickness15.6mm Compatible media ：Drive‑axle gear‑oil, general axle lubricants. Fit application ：Heavy‑duty commercial‑vehicle drive‑axle differential sealing. Buyer reminder ：This is aftermarket replacement spare part for vehicle differential. Please verify shaft dimension, housing bore and cassette seal profile before placing order. Dimension mismatch will result in gear‑oil leakage after installation.

Selection guide

Selection Tips 1. Confirm dimension ID110.25mm, OD145mm, thickness15.6mm and RWDR‑KASSETTE cassette‑type structure. 2. Standard NBR version for normal gear‑oil environment; select FKM upgrade for high‑temperature heavy‑load working condition. 3. 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 differential housing bore and shaft surface, remove old seal residue, dirt and metal burrs. Pre‑lubrication Coat sealing lip and shaft surface with matched drive‑axle gear‑oil. Dry installation strictly forbidden; dry friction will damage sealing lip quickly. Orientation Confirmation Main sealing lip points toward differential gear‑oil cavity; dust‑proof side faces outward. Wrong installation direction leads to gear‑oil leakage and poor contamination‑resistance. Vertical Press‑fit Use dedicated press‑sleeve tool to press cassette oil‑seal evenly and vertically. Never strike rubber body or metal shell 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 seal‑body deformation; tiny hidden damage will cause seepage after commissioning. Rotation Test Manually rotate differential 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

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 110.25x145x15.6 oil seal used for?

110.25x145x15.6 cassette‑type oil seal, NBR material, heavy‑duty commercial‑vehicle drive‑axle differential replacement seal. It keeps drive‑axle gear‑oil inside and blocks mud and splash‑water for differential assembly.

What are full specifications?

Size:ID110.25mm × OD145mm, thickness15.6mm; Material:NBR rubber + partial metal shell + garter spring; Structure:RWDR‑KASSETTE cassette composite seal; Working temperature:‑20℃ 120℃; Application:Heavy‑duty commercial‑vehicle drive‑axle differential sealing.

Which vehicle fits this 110.25x145x15.6 oil seal?

This cassette‑type oil seal is aftermarket replacement for heavy‑duty commercial‑vehicle drive‑axle differential. Please confirm shaft dimension, housing bore and cassette seal profile before purchase.

Do you support custom logo and export packaging?

Yes, custom logo 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. Customized order MOQ:1000 pcs, lead‑time 30‑45 days.

How to avoid gear‑oil leakage after installation?

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

What is shelf‑life for NBR cassette oil seal?

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

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

Yes, FKM material upgrade version is available for higher‑temperature heavy‑load 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 oil seals for one‑stop sourcing.

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