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.

Detailed photos