L&H Omega Undercarriage for Electric Rope Shovels Download Tech Sheet PDF


Proven in the field on mines across the globe, the L&H Omega Undercarriage upgrades Cat®/Bucyrus® electric rope shovels with a higher-performance, longer lasting assembly.


  • Extended lifespan. Advanced materials, forged components and design innovations extend shovel undercarriage life by 30% or more, reducing lifetime maintenance, materials waste, and total cost-of-ownership.
  • Easier maintenance. Smart modifications—fully guaranteed and 100% OEM compatible—significantly reduce structural wear and maintenance times.
  • Double the torque. The L&H Omega Propel Transmission in the undercarriage increases torque by 50-65%, enabling the machine to move through dirt and mud with ease.
  • Increased safety. Extending maintenance intervals reduces the time your team spends servicing your shovels in the field.

L&H Omega Undercarriage for Electric Rope Shovels (CAT) - Treads


Final drive modifications

Saving up to 50% of downtime on machine maintenance, these advanced modifications eliminate the need to remove the transmission and motor to replace the tumbler, final drive shaft and bearings.

Advanced shoe system with manganese

Advanced shoe system with deep engagement and stable pitch fits deep into drive tines, creating a larger contact area to reduce wear to tumblers. Impact resistance of manganese steel exceeds alloy track pads by more than triple and provides abrasion resistance in virtually all work environments. Surface hardened pins reduce the effect of wear on the track pitch, while an up-sized hinge clevis reduces contact loading to maintain the track pitch as well.

Straddle-mount front idler

The L&H idler uses a proven design concept to extend the usual maintenance interval three times the OEM design. The use of an additional bushing located in both bearing blocks reduces the bearing stress by 50% - tripling it's lifetime, and the need to split the tracks to replace the bushings has been eliminated. This design also improves both the lubrication and lubrication protection equipment. With the use of Toughmet bushings, the life of the bearings is tripled.

Side frame modifications

This design has been improved with a thicker inner plate to reduce structural wear, increasing assembly lifespan.