YNF17562 Ball Guide HMS072 Hydraulic Pump Ball Guide for Excavator Rotating Group

The YNF17562 Ball Guide, manufactured for the HMS072 hydraulic pump, plays a critical role in stabilizing piston shoe alignment within the rotating group. By maintaining accurate movement tracking, the ball guide ensures consistent hydraulic timing, optimized oil flow, and reliable pressure output. When worn or deformed, the pump may suffer from vibration, noise, increased friction, reduced power, and accelerated wear of surrounding components.

Built from high-strength alloy steel and refined through precision CNC machining and surface grinding, the YNF17562 ball guide offers excellent hardness, structural durability, and smooth sliding characteristics. These properties help reduce internal leakage, extend pump life, and enhance overall hydraulic performance—especially during long-hour heavy-duty excavation work.

This component is widely used by pump rebuilders, excavator service centers, and aftermarket machinery parts suppliers. Replacing the ball guide during an overhaul significantly improves pump efficiency and machine reliability.