110.25x145x15.6mm Cassette Oil Seal, Premium Differ

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.

Key specs: 内径 mm: 110.25 | 外径 mm: 145 | 高度 mm: 15.6 | 材料牌号: NBR | 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 | 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

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

How to submit an RFQ and get a quotation?

1) Open the inquiry page and enter company and contact details. 2) Provide model/size/quantity and duty conditions. 3) Note sample needs (intent=sample) when required. 4) Submit — we typically reply within 24 hours with an actionable quote and lead time. Final price and schedule follow the formal quotation.

What is your typical MOQ? Can you support small trial orders?

We support small trial lots for standard items. Production MOQ depends on tooling, material and process. Submit model/size/qty via the inquiry form for an actionable MOQ and lead time. Final price and schedule follow the formal quotation.

What are lead times for standard vs custom parts?

Stock/standard sizes are faster; custom dimensions, special materials or tooling take longer. Lead time depends on quantity and capacity—confirm via RFQ. Mark urgent needs in the inquiry notes.

I only have a competitor/OEM part number—can you cross-reference?

Yes. Provide the reference PN, key dimensions (ID/OD/height) and duty (media, temperature, pressure). We match equivalents in the catalog; use the Cross Reference page for keyword search. Final selection follows drawing and duty confirmation.

Which sealing materials do you use? How to choose for high temperature or special media?

Common materials include NBR, FKM/FPM, PTFE and silicone—matched to media, temperature and pressure. Share working temperature, media and motion type; we recommend a grade and note limits on the quote.

Do you support OEM/ODM, private packing and marking?

Yes—OEM/ODM from drawings/samples and agreed packing/marking. Share target market compliance needs and volume estimates; we confirm feasibility, tooling and production cadence at RFQ.

Do you export? What trade terms and payment methods are available?

We export to international buyers. Terms and payment (e.g. T/T) are confirmed during RFQ. Note destination port/country and preferred terms; formal contracts and PIs follow mutual confirmation.

What QC is done before shipment? Can you provide test reports?

Pre shipment dimensional/visual checks per order; material certificates or test reports available as agreed by product/lot. Specify document types and standards in the RFQ.

How do I request samples? How are sample and freight fees handled?

Use the inquiry form with sample intent, model/size and ship to address. Sample/freight waivers depend on item and partnership intent—confirmed by sales email. Provide full specs to avoid wrong shipments.

How do you make our business long-term and good relationship?

1.We keep good quality and competitive price to ensure our customers benefit; 2. We respect every customer as our friend and we sincerely do business and make friends with them, no matter where they come from.

What are the advantages of your company?

We have Impressive Professional Technology, Experienced Technical Staffs, Strict Inspection Procedures, High Quality and Afforable Prices On Time Delivery, Problems identification & Solutions offers. Seal Design Proposal offers. Seals Tests for Endurance and Performance, PPAP Level IIl Submission. Strick Process Control, International Standard Criterias.

What is your terms of payment?

T/T 30% as deposit, and 70% before delivery. We'll show you the photos of the products and packages before you pay the balance.

What is your terms of delivery?

EXW, FOB, CFR, CIF.

How about your delivery time?

Existing molds: 30 days, depending on ordering quantity. New Molds: 60 days, depending on ordering quantity. Samples Submission: 21 28 days with existing toolings.

Can you produce according to the samples?

Yes, we can produce by your samples or technical drawings. We can build the molds and fixtures.

Do you test all your goods before delivery?

Yes, we have 100% test before delivery

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.

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