190x232x30mm Oil Seal | TB Type NBR Oil & Auto Parts

This 190×232×30mm TB-type oil seal is a high-performance aftermarket sealing solution for commercial vehicle wheel hub and drive axle systems, widely applied in heavy duty truck chassis and rotating shaft components.

It adopts an exposed steel outer case for rigid mounting and structural stability, paired with precision-machined primary oil-sealing lip and secondary dust-proof lip. A built-in carbon steel garter spring maintains consistent radial preload on the shaft surface, even under heavy load vibration and road impact. The inner lip retains hub gear oil and bearing grease inside the assembly, while the outer lip blocks road dust, mud, grit and splash water from invading the bearing chamber, effectively extending the service life of hub bearings and shaft parts.

Produced with strict dimensional tolerance control, it matches standard industry size specifications and can be directly installed without modification. We maintain stable finished goods inventory to support fast delivery and large-volume procurement for global automotive aftermarket channels.

Core value for buyers

• Metal case structure for stable mounting and reliable sealing performance
• Factory direct pricing, cost-effective for bulk sourcing and repair shops
• Consistent batch quality, suitable for long-term scheduled replenishment

Features & Benefits

• Standard industry size 190x232x30mm, direct interchangeable replacement for automotive wheel hub and axle applications
• Exposed metal case design provides rigid mounting and stable interference fit in the housing bore
• Premium NBR nitrile rubber sealing lip with garter spring, excellent oil resistance and wear resistance for long service life
• Double-lip structure delivers dual effects of lubricant retention and dust/mud protection, suitable for complex road conditions
• Strict dimensional inspection per batch, stable quality consistency for aftermarket repair and replacement
• Factory direct supply with competitive bulk pricing, cost-effective for large volume procurement
• Stable finished goods inventory, supports fast delivery for urgent repair orders
• Flexible customization options including private label and FKM material upgrade

Material & Process

• Material：Premium grade brown NBR nitrile rubber sealing lips, cold-rolled steel outer case, carbon steel garter spring
• Structure：TB type double-lip metal-cased rotary shaft 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 bonding between rubber lip and metal case

• Precision grinding of sealing lip edge for uniform contact pressure with shaft

• Dimensional inspection per production batch before shipment

• Quality control aligned with automotive aftermarket part standards

• Upgrade option：FKM fluoroelastomer version available for higher temperature working conditions

Packaging & 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.

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.
• Custom services：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