185x208x12mm Oil Seal | Factory Direct Brown NBR Ni

185x208x12mm Oil Seal | Factory Direct Brown NBR Nitrile Rubber Automotive Shaft Seal — main photo

185×208×12mm oil seal, manufactured with premium grade NBR nitrile rubber and built in garter spring. Factory direct sales with stable in stock availability, high quality aftermarket sealing solution for automotive rotating shaft systems. Features excellent oil resistance, wear resistance and dust proof performance, direct interchangeable with standard OEM dimensions. Ideal for overseas auto parts distributors, repair workshops, fleet maintenance and cross border wholesale procurement.

Product photos

185x208x12mm Oil Seal | Factory Direct Brown NBR Nitrile Rubber Automotive Shaft Seal — photo 2 185x208x12mm Oil Seal | Factory Direct Brown NBR Nitrile Rubber Automotive Shaft Seal — photo 3 185x208x12mm Oil Seal | Factory Direct Brown NBR Nitrile Rubber Automotive Shaft Seal — photo 4

Key specs: 内径 mm: 185 | 外径 mm: 208 | 高度 mm: 12 | 材料牌号: NBR | Size: ID 185mm × OD 208mm × Thickness 12mm | Material: Brown NBR nitrile rubber + Carbon steel garter spring | Structure: TC type double-lip fully rubber-covered skeleton seal | Type: Aftermarket replacement part

  • 内径 mm: 185
  • 外径 mm: 208
  • 高度 mm: 12
  • 材料牌号: NBR
  • Size: ID 185mm × OD 208mm × Thickness 12mm
  • Material: Brown NBR nitrile rubber + Carbon steel garter spring
  • Structure: TC type double-lip fully rubber-covered skeleton seal
  • Type: Aftermarket replacement part
  • Standard: ISO/TS 16949 compliant
  • Application: Automotive chassis & transmission rotating shaft sealing
  • Size: ID 185mm × OD 208mm × Thickness 12mm
  • Material: Brown NBR nitrile rubber + Carbon steel garter spring

Technical summary

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SpecValue
SizeID 185mm × OD 208mm × Thickness 12mm
MaterialBrown NBR nitrile rubber + Carbon steel garter spring
StructureTC type double-lip fully rubber-covered skeleton seal
TypeAftermarket replacement part
StandardISO/TS 16949 compliant
ApplicationAutomotive chassis & transmission rotating shaft sealing

Pricing: request a quote (B2B / wholesale).

Request a quote · Inquiry · Request a sample

Product details

This 185×208×12mm TC type oil seal is a factory direct aftermarket sealing solution designed for automotive rotating shaft systems, serving global distributors, professional repair workshops and fleet operators. It adopts a fully rubber covered steel skeleton structure with precision machined primary sealing lip and secondary dust proof lip, paired with a built in high carbon steel garter spring to maintain stable radial preload even under continuous shaft rotation and road vibration. It effectively retains gear oil, transmission fluid and bearing grease inside the shaft housing, and blocks external road dust, mud, grit and splash water from invading internal components to extend shaft and bearing service life. Manufactured under ISO/TS 16949 quality management system with strict dimensional tolerance control, it matches standard OEM shaft size specifications and can be directly installed without modification. We maintain sufficient finished goods inventory to support fast delivery and large volume procurement, serving worldwide automotive aftermarket channels. Core value for buyers Factory direct pricing with no intermediate markup, cost effective for bulk procurement Stable in stock supply, supports urgent orders and regular scheduled replenishment OEM interchangeable dimensions, direct drop in replacement, reduces maintenance downtime Consistent batch quality, matches original equipment sealing performance

Material and process

Material ：Premium grade brown NBR nitrile rubber, carbon steel garter spring, steel reinforcement skeleton Structure ：TC type double lip fully rubber covered rotary shaft skeleton oil seal Hardness ：70±5 Shore A Key performance ：Oil resistant, wear resistant, dust proof, anti vibration, anti aging Working temperature range: 30℃ +120℃ Manufacturing process Integrated vulcanization molding, firm bonding between rubber and skeleton Precision grinding of sealing lip edge, uniform contact pressure with shaft surface Full dimensional inspection for each production batch before shipment Strict quality control per automotive aftermarket part standards Upgrade option ：FKM fluoro rubber version available for higher temperature and chemically aggressive working conditions

Application and compatibility

Product Type ：Aftermarket TC type rotary shaft oil seal for automotive and commercial vehicles Core dimensions ：ID 185mm × OD 208mm × Thickness 12mm Compatible fluids: Gear oil, transmission fluid, bearing grease, general chassis lubricants Fit applications Automotive chassis rotating shaft sealing Commercial vehicle transmission shaft sealing Wheel hub and axle auxiliary shaft sealing Industrial equipment same size rotating shaft sealing Suitable for ：Auto parts distributors, professional repair workshops, fleet maintenance centers, cross border auto parts traders Buyer notice ：This is an aftermarket replacement part, not genuine OEM product. Please confirm shaft diameter, housing bore size and seal thickness before ordering. Dimension mismatch will cause lubricant leakage after installation.

Selection guide

Selection Guide 1. Confirm shaft ID 185mm, housing OD 208mm, required thickness 12mm and TC double lip structure. 2. Standard NBR version for normal automotive operating conditions ( 30℃ 120℃); select FKM upgrade for high temperature and chemically aggressive environments. 3. For long term procurement projects, contact us for exclusive bulk pricing and dedicated supply schedule. Installation Steps Surface Preparation Thoroughly clean the shaft housing bore and shaft surface, remove old seal residue, dirt, rust and metal burrs. Pre lubrication Apply matching lubricating oil or bearing grease evenly on the sealing lip and shaft mating surface. Dry installation is strictly prohibited as it will cause premature lip wear and failure. Orientation Confirmation The main sealing lip faces the lubricant cavity side; the dust proof lip faces the external environment side. Reverse installation will cause oil leakage and loss of dust protection. Press fit Installation Use a dedicated press sleeve tool to press the seal in evenly and vertically. Never strike the rubber body directly to avoid seal deformation and lip tearing. Post installation Check Ensure the seal sits fully flush inside the housing bore without tilt or offset. Inspect the sealing lip for nicks, scratches and deformation. Function Test Manually rotate the shaft assembly to confirm smooth rotation without abnormal binding resistance.

Packaging and delivery

Inner packaging ：Each piece individually packed in anti dust poly bag to protect the sealing lip from scratches and contamination. Outer packaging ：Standard export corrugated carton with shock proof padding. Custom packaging with private label available. Packing quantity ：Adjustable per bulk order requirements. MOQ ：No minimum order for stock items; sample orders supported for quality evaluation. Lead time Stock items ：Ship within 2 5 working days after payment Custom private label / packaging orders: 25 40 working days Large volume bulk orders: Lead time to be confirmed based on quantity Custom services ：OEM private label printing, custom packaging design, consolidated shipping for mixed SKUs Shipping terms ：EXW, FOB, CIF available Export documents ：Commercial invoice, packing list, certificate of origin, dimensional test report available on request

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.

What is 185x208x12mm oil seal used for?

It is widely used for automotive chassis and transmission rotating shaft sealing, retaining gear oil and bearing grease while blocking external dust, mud and splash water.

What material is this automotive shaft seal made of?

Made of premium grade brown NBR nitrile rubber with carbon steel garter spring and steel skeleton, hardness 70 Shore A, working temperature 30℃ to +120℃.

Is this seal interchangeable with standard OEM shaft size?

Yes, it is manufactured to standard OEM dimensions with strict tolerance control, direct drop in replacement without modification.

Do you sell this oil seal factory direct?

Yes, we are the manufacturer with our own production facility, offering factory direct pricing and stable bulk supply capacity.

Is this 185x208x12mm seal in stock?

Yes, we keep stable stock of this standard size. Stock orders can be shipped within 2 5 working days after payment.

What is your MOQ for bulk orders?

No minimum order quantity for stock items. Sample orders are supported for quality evaluation before bulk purchase.

What trade terms do you offer?

We offer EXW, FOB and CIF trade terms to support cross border procurement.

Can you provide private label service?

Yes, we provide private label printing and custom packaging services. MOQ for custom orders is 1000 pieces, lead time 25 40 working days.

Do you have a high temperature version of this seal?

Yes, we offer FKM fluoro rubber upgrade version for higher temperature and chemically aggressive working conditions.

Can I mix different seal sizes in one order?

Yes, mixed wholesale of multiple sizes and types is supported, with consolidated shipping to reduce logistics cost.

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