Kawasaki P-37246100013K RETAINER BALL

Key Specifications

• Brand: Kawasaki (OEM)
• Part Number: P-37246100013K
• Component Type: Hydraulic Motor Retainer Ball (Cylinder Ball Guide / Pivot Ball)
• Primary Application: Main rotary group centration and set plate alignment for Kawasaki M2X146 series hydraulic swing motors
• Material Composition: Premium, ultra-hardened chrome steel alloy (GCr15)
• Surface Finish: Micro-polished, high-sphericity finish to ensure a seamless hydrodynamic oil boundary layer
• Functionality Profile: Anchors the piston stroke trajectory, balances internal thrust load transfers, and eliminates rotational harmonic vibrations
• Equipment Compatibility: Extensively utilized in heavy crawler equipment overhauls for Hyundai Construction Equipment and Volvo excavators utilizing Kawasaki swing drives

Product Overview

The P-37246100013K Retainer Ball is a premium, industrial-grade internal component precision-engineered to meet strict Kawasaki OEM manufacturing specifications. Alternatively classified as a pivot ball or swing drive ball guide within the hydraulic rotary group, this critical part is purpose-built for Kawasaki M2X146 series (including M2X146B) hydraulic swing motors. Centered inside the cylinder block, it serves as the precise spherical pivot point that aligns and stabilizes the piston retainer set plate. Built to withstand relentless mechanical friction and extreme hydraulic fluid compression, this high-precision ball ensures uniform piston tracking, eliminates internal play, and prevents devastating cylinder block misalignment. It is a mandatory replacement component during a rotary group rebuild to guarantee original volumetric efficiency and smooth rotational torque.