85x150/169x13.5/33mm Differential Shaft Oil Seal, NBR, For Heavy‑Duty Truck Sealing

Brand‑new aftermarket flange bowl‑style differential shaft oil seal 85x150/169x13.5/33mm, built with reinforced deep‑drawn bowl‑shaped metal shell and NBR double‑lip with garter spring, designed for heavy‑duty truck differential pinion shaft assembly.

The unique bowl‑flange shell provides stable interference fit for truck axle housing bore. Pre‑loaded garter spring maintains constant radial pressure on rotating shaft. It locks differential gear‑oil inside housing and resists heavy mud, sand and splash‑water intrusion in tough off‑road and highway truck operating scenarios. Ideal for truck repair shops, heavy‑parts wholesalers and cross‑border bulk procurement.

Core functions

• Gear‑oil retention: Stop differential gear‑oil leakage under heavy load, vibration and shock from truck driving
• Heavy‑duty contamination exclusion: Block thick mud, road grit and splash‑water for poor‑road truck working environment
• Reinforced bowl‑shaped metal shell: Anti‑rust coating, anti‑deformation for heavy‑truck press‑fit installation
• Garter‑spring pre‑load: Stable sealing performance under large temperature swings and continuous vibration

Features & Benefits

• Unique reinforced bowl‑flange deep‑drawn metal shell, excellent anti‑deformation performance for heavy‑truck axle housing press‑fit installation.
• NBR double‑lip plus garter‑spring pre‑load design, holds gear‑oil and blocks heavy‑truck mud, splash‑water and road dust.
• Strict dimensional & flange‑profile tolerance control, direct aftermarket replacement for heavy‑duty truck differential repair.
• Brand‑new finished spare‑part, stable sealing performance for heavy‑load truck working conditions.
• Adequate stock inventory, support sample trial, small‑batch retail and large‑volume export wholesale orders.
• OEM private‑label service available for overseas heavy‑truck auto‑parts distributors.
• Precision vulcanization craft, firm rubber‑metal bonding, outstanding anti‑vibration performance for heavy‑truck under‑carriage environment.
• FKM fluoro‑rubber upgrade option available for severe high‑temperature heavy‑duty working scenarios.

Material & Process

• Material：NBR nitrile rubber sealing lip, anti‑rust painted deep‑draw carbon‑steel bowl‑flange shell, stainless steel garter spring
• Structure：Flange bowl‑type double‑lip rotary shaft oil seal
• Key properties：Oil‑resistant, heavy‑dust‑proof, anti‑vibration, anti‑aging, impact resistant
  Working temperature:‑20℃ ~ +120℃

Manufacturing features

• High‑temperature vulcanization bonding between rubber lip and bowl‑shaped metal shell, resist rubber‑metal separation under heavy truck vibration.

• Precision‑ground sealing lip to reduce friction heat and extend service‑life under long‑time continuous rotation.

• Anti‑rust painted bowl‑flange shell adapts to harsh heavy‑truck under‑carriage environment.

• NBR compound compatible with heavy‑duty truck differential gear‑oil.

• Upgrade option：FKM fluoro‑rubber variant for higher‑temperature heavy‑load operating conditions.

Packaging & Delivery

• Inner package：Individual anti‑dust poly bag for each piece to protect sealing lip and bowl‑flange from scratch and dent.
• Outer package：Reinforced heavy‑export carton.
• Packing quantity：Adjustable per purchase requirement.
• MOQ and lead time：In stock: ships in 1 to 2 days. Not in stock but still in current production: 10 to 15 days. Not in stock and not in production: 25 to 30 days.
  Shipping protection:Moisture‑proof, dust‑proof and anti‑collision packing to prevent bowl‑flange deformation during transit.