High Strength Forging Casting Carrier Roller Upper Roller Excavator Undercarriage Parts For Doosan DX140W

High Strength Carrier Roller Upper Roller Excavator Spare Parts For Doosan DX140W Construction Machinery Parts

OVERVIEW
 

Replace worn or failed upper rollers with this precision-engineered carrier roller designed exclusively for the Doosan DX140W wheeled excavator. Manufactured from forged, heat-treated 40Mn2 steel and reinforced with lifetime-lubricated seals, this part delivers maximum track stability and extended service life in the toughest construction environments.

Product parameters

FEATURES & BENEFITS
 

Extreme Durability: Forged alloy steel and deep-hardened tread resist bending, cracking, and spalling under heavy dynamic loads.
 

Dust & Water Protection: Triple-lip floating seals prevent abrasive intrusion, minimizing oil loss and downtime.
 

Precision Fit: CNC-machined mounting brackets ensure drop-in installation—no field modifications required.
 

Extended Service Intervals: High-temperature grease maintains lubrication from –20 °C to 120 °C, cutting maintenance costs up to 30 %.
 

Field-Tested Reliability: Successfully validated on DX140W units operating 2,000+ hours in quarry and road-building applications.

INSTALLATION & MAINTENANCE

Raise track frame and secure machine on approved stands.

Remove retaining bolts and slide out old roller.

Position new carrier roller; torque bolts to 280 N·m.

Rotate track by hand to verify smooth motion; check for leaks after first 10 operating hours.

WARRANTY & SUPPORT

Backed by a 12-month unlimited-hour warranty. In-stock inventory ships within 24 hours worldwide. Contact our parts specialists for technical drawings, bulk pricing, or expedited delivery.

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