Rexroth R902136991 A4VG90/32 Retaining Ball

$181.42

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SKU:: R902136991
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Specifications

Key Specifications

Manufacturer: Bosch Rexroth
Part Number: R902136991
Pump Series Compatibility: A4VG90 Series 32
Model Configuration: A4VG90/32 RETAINING BALL 21520.0000
Component Type: Central rotating group retaining ball (spherical guide)

Product Overview

This genuine Bosch Rexroth retaining ball acts as the central spherical pivot guide for the internal rotating group within A4VG90 Series 32 variable displacement axial piston pumps. Positioned precisely at the core of the cylinder barrel, this spherical guide provides a centralized mechanical pivot point that securely aligns the slipper retaining plate. It allows the pistons to slide and reciprocate smoothly against the swashplate while maintaining balanced mechanical tension throughout the rotating sequence.