190x220x15mm Rear Wheel Hub Oil Seal OEM WG9112340113 WG9112340114 | TB Type NBR for Sinotruk HOWO Steyr

This 190×220×15mm TB-type rear wheel hub oil seal is a direct aftermarket replacement for heavy duty commercial truck rear axle systems, matching OEM part numbers WG9112340113 and WG9112340114, widely used on Sinotruk HOWO, Steyr and related truck models.

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, extending wheel hub bearing service life.

Produced in Hebei, China with mature supply chain, we maintain stable bulk stock to support fast delivery and large-volume procurement for global aftermarket channels.

Core value for global buyers

• Factory direct pricing from Chinese manufacturing base, cost-effective for bulk sourcing
• Stable finished goods inventory, supports urgent orders and regular scheduled replenishment
• Consistent batch quality verified by standard automotive sealing test requirements

Features & Benefits

• Exposed steel outer case + NBR double-lip structure, rigid mounting stability and reliable oil/dust sealing performance

• Carbon steel garter spring maintains consistent radial preload, adapts to heavy load vibration conditions

• Factory direct supply from Chinese manufacturing base, competitive bulk pricing for global distributors

• Stable finished goods inventory, supports fast delivery and urgent order fulfillment for aftermarket repair

• Flexible customization options including private label and FKM material upgrade

• Standard trade terms and full export document support, convenient for cross-border procurement

Material & Process

• Material：Premium grade NBR (nitrile butadiene rubber) sealing lips, exposed 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℃ (NBR version)

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.

• 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.

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：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