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RITO M2X210 Hydraulic Pump Ball Guide 138852 M2X210 138852 Main Pump Guide Ball Spherical Guide Excavator Pump Repair Part

Experiencing heavy swing chattering, erratic rotation braking, or quick piston slipper wear inside your excavator's swing motor? A worn ball guide loses its spherical concentricity, causing the retainer plate to tilt and leading to internal pump scoring. Rebuild your swing system using the high-precision RITO 138852 spherical guide ball.

  • Item NO.:

    138852
  • Order(MOQ):

    1
  • Payment:

    T/T, WESTERN UNION, CHINESE BANK,PAYPAL
  • Product Origin:

    JAPAN
  • Lead Time:

    2-3 DAYS
  • Product Details

Quarry parts distributors require high-quality internal motor components that hold up under continuous, high-pressure tracking and digging cycles. Our RITO 138852 guide ball delivers excellent wear resistance and reliable volumetric efficiency. Keep this high-demand service item in stock to satisfy urgent workshop repair requests instantly.

138852 Ball Guide

 
Product Specifications

Part Number  138852 (Motor Frame: M2X210)
Part Name Main Pump Guide Ball Spherical Guide Excavator Pump Repair Part
Compatible Brand Tongmyung
Applicable Models Excavator Swing Motors utilizing M2X210 Hydraulic Pump Internals
Application Excavator hydraulic system
Material High-Hardness Alloy Steel
Product Color Polished Steel Silver Finish
Working Temperature -30°C to 115°C
Key Function Centering the internal rotating components within the swing motor axial casing
Condition 100% New, Aftermarket / OEM Quality
Packaging Wooden Case/Reinforced Carton/Neutral Packing / Customized Box

 

Key Features & Advantages


Precision

Bimetallic Block Support Technology

Specialized outer treatment provides a durable, low-friction interface against the retainer plate.

Leak-Free

Precision Finished Spherical Face

Micro-polished flow channels ensure clean, unobstructed oil distribution to internal rotating parts.

Direct Fitment

Accurate Drive Shaft Fitment

Precision internal splines ensure a tight, balanced connection with the main input drive shaft.

Rigorous Testing

 Multi-Tier Quality Options

We provide Original, OEM, and Premium Aftermarket grades, allowing distributors to meet diverse client budgets and performance needs.

 

Excavator Hydraulic Part

FAQ


Q: How can a technician tell if a swing system problem stems from the 138852 guide ball or an external relief valve?
A: Connect pressure gauges to the diagnostic ports; if the casing line runs excessively hot while the motor chatters physically during rotation stops, the center spherical guide ball is likely worn.
 
Q: What technical preparation is required before placing this spherical guide ball into the pump group?
A: Technicians must thoroughly coat the internal splines and outer face with clean hydraulic fluid, ensuring that the drive shaft aligns perfectly without requiring force.
 
Q: Are the individual internal parameters of the 138852 guide ball compatible with standard 210cc motor variations?
A: Yes, it is precision-machined to standard factory blueprints for this displacement class, ensuring seamless interchangeability for warehouse managers.
 
Q: How does this center spherical guide maintain reliable operation during heavy concrete breaking shifts?
A: The alloy steel body is heat-treated to resist high-frequency shock fatigue, preventing the spherical surface from expanding or distorting under intense pressure spikes common during heavy demolition work.
 

Q:  What quality options are available?

A: We provide original, OEM, and high-quality aftermarket versions with stable supply capability.

 

Q:Why Choose RITO?
A:Listed Factory
   Stable&Reliable Quality
   OEM Factory for Chinese Top Excavator Brands
   Supplier to Fortune 500 Companies

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If you are interested in our products and want to know more details,please leave a message here,we will reply you as soon as we can.

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If you are interested in our products and want to know more details,please leave a message here,we will reply you as soon as we can.

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