EX200-2 OEM Replacement Carrier Roller 9062406 with HRC50-58 Hardness and CNC Ultra-Precision Machining for Excavator Undercarriage

This carrier top roller is a 1:1 OEM direct replacement for EX200-2 excavator, with official part number 9062406. No cutting, drilling or secondary modification is required during installation. It adapts to long-term heavy-duty operation and resolves common undercarriage running issues of EX200-2 equipment fleets.

This excavator model is widely applied in municipal engineering, quarry operations and road maintenance. Long-term muddy water immersion, gravel friction and continuous impact load will lead to track shaking, track sagging, seal leakage and shaft jamming on ordinary rollers. This component is manufactured to adapt to complex working conditions and keep stable operating performance.

We use one-piece integral forging steel blank for solid structure. Dual heat treatment is adopted in production: quenching enhances surface hardness to resist abrasive wear; tempering eliminates internal stress and avoids shell cracking under repeated impact. All mounting holes and contact surfaces are processed by CNC equipment, with machining error controlled within 0.01mm, fully consistent with original factory dimensions.

1. Raise the excavator track with a hydraulic jack to separate it from the ground and release partial track tension.
2. Remove fixing bolts of the old roller, take out the damaged part and clean dust and sediment on the mounting base.
3. Place the new roller in position and align the bolt holes accurately.
4. Fasten all bolts with standard torque, reset track tension and test idle running.
5. Confirm no abnormal vibration or friction noise to complete installation.

• Precise dimensions eliminate track deviation and walking vibration
• Reinforced sealing structure prevents muddy water ingress and oil leakage
• Complete heat treatment lowers the risk of roller shell fracture
• Direct installation saves on-site maintenance time and labor cost

A local construction service team operates multiple EX200-2 excavators. Generic rollers used before failed within 690-840 working hours. After switching to our products, the rollers run stably for over 1800 working hours without faults, reducing annual undercarriage maintenance costs by 33%.

A: Yes. Part No. 9062406 matches the model perfectly, no extra adjustment needed during installation.

A: Most generic products omit tempering and have dimensional tolerance above 0.05mm. Our dual heat treatment and 0.01mm high-precision machining ensure reliable performance in harsh environments.

A: Yes. We supply heat treatment test reports and dimensional inspection reports for all bulk shipments.