Caterpillar says its new High Performance Circle for graders increases circle torque, performance and durability
The new High Performance Circle (HPC) design available for the Cat 140 JOY, 150 JOY and 160 JOY motor graders helps to eliminate hours of monthly planned maintenance for frequent inspection, wear strip replacement and circle shoe adjustments associated with conventional circle designs, Caterpillar has announced.
The new HPC, available in Australia and New Zealand, improves machine performance, efficiency and uptime availability compared to the previous Cat motor grader series in earthmoving and road building applications.
Adopted from the Cat excavator swing drive and 14 motor grader worm drive, the HPC features a fully sealed bearing design. It replaces the previous open circle and drawbar, reducing operator touchpoints, extending service intervals and improving machine uptime. Additionally, the HPC provides smooth blade rotation and assists in meeting jobsite and road design elevation tolerance.
The new HPC maintains the same machine connection interface as the standard drawbar/circle/moldboard. An innovative pinion gear shape with a large shaft diameter delivers durable operation and allows the drive to be removed vertically without drive adjustments. Dowel locators precisely position motors for simplified servicing, optimal tooth contact and long pinion life. Its new design improves component reliability to reduce downtime and maintenance costs.
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