056093830 - Koike Aronson Y-Axis Pinion Gear 4mm CP2.125

Restore Precision to Your Cutting System

The Koike Aronson 056093830 Pinion is a critical mechanical component designed for the Y-Axis drive system of select industrial cutting machines. In the world of CNC plasma and oxy-fuel cutting, the accuracy of the cut is directly dependent on the precision of the motion control system. The rack and pinion drive is the heartbeat of this movement, translating rotational motor torque into linear gantry travel. Over time, the constant friction and high-torque starts and stops can wear down the teeth of the pinion gear, leading to 'slop' or backlash in the system.

This specific pinion features a 4mm specification with a CP2.125 (Circular Pitch) configuration, engineered to mesh perfectly with the corresponding rack on your machine's Y-axis. Using a pinion that does not match these precise specifications can result in rapid wear of the expensive rack, binding, or poor cut quality characterized by jagged edges or non-round holes. This part is manufactured to OEM standards, ensuring that the hardness of the gear teeth is balanced to provide long service life without prematurely wearing out the mating rack.

Replacing a worn pinion is a standard maintenance procedure that can dramatically improve machine performance. Symptoms of a worn pinion include audible grinding noises, visible wear on the gear teeth (often becoming sharp or pointed), and a loss of dimensional accuracy in finished parts. By installing this genuine Koike Aronson replacement, you ensure that your machine operates at its original factory specifications, maintaining the tight tolerances required for professional fabrication work.

Whether you are performing preventative maintenance or repairing a breakdown, this pinion is the exact component needed to get your Y-axis drive back to optimal condition. Ensure you check your machine's manual to confirm compatibility with part number 056093830 before ordering.