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RITO Excavator Wear Ring 4445998 ZX200 ZX210 4445998 Track Adjuster Cylinder Wear Ring Excavator Undercarriage Repair Unit

Ruined grease cylinders, collapsed track adjuster springs, or frequent track de-railing incidents ruining your crawler excavator’s undercarriage productivity? When a worn out or crushed wear ring allows the track tensioner piston to slide unevenly, metal-on-metal rubbing rapidly scores the cylinder walls, leading to pressure loss that slackens the track chains. Restore proper tracking alignment by fitting the high-durability RITO 4445998 adjuster cylinder wear ring.

  • Item NO.:

    4445998
  • Order(MOQ):

    1
  • Payment:

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

    JAPAN
  • Lead Time:

    2-3 DAYS
  • Product Details

Mining procurement teams and regional machinery service operations require heavy-duty guiding rings that handle immense undercarriage tracking shocks without flattening. The robust RITO 4445998 guide sleeve provides exact concentric alignment to hold the grease tensioner piston straight within its casing block under continuous travel loads. Add this essential track adjuster cylinder repair unit to your inventory to ensure predictable field mobility across your client fleets.

4445998 Wear Ring

 
Product Specifications

Part Number  4445998
Part Name Track Adjuster Cylinder Wear Ring
Compatible Brand Hitachi
Applicable Models ZX200, ZX210 Excavators
Application Excavator hydraulic system
Material High Tensile Nodular Cast Iron and Hardened Alloy Steel
Product Color Industrial Matte Black Finish
Working Temperature -20 to 120 degrees Celsius
Key Function Guiding the track adjuster piston straight and absorbing lateral side-loads inside the tensioner cylinder frame
Condition 100% New, Aftermarket / OEM Quality
Packaging Wooden Case/Reinforced Carton/Neutral Packing / Customized Box

 

Key Features & Advantages


Precision

High-Density Reinforced Polymer Construction

Premium anti-friction material compound prevents metal-on-metal rubbing contact to safeguard cylinder walls from scoring.

Leak-Free

Parallel Thickness Consistency

Ground to precise technical metrics to distribute heavy lateral undercarriage loads evenly across the tracking cylinder.

Direct Fitment

Low Coefficient of Friction

Ultra-smooth guiding surface lowers piston movement resistance to prevent grease cup packing wear.

Rigorous Testing

Global Supply Tiering

We offer Original, OEM, and high-performance Aftermarket options to provide flexible procurement strategies for diverse regional markets.
 
 

 

Excavator Hydraulic Part

FAQ

Q: What undercarriage tracker cylinder issues indicate that the internal 4445998 wear ring has worn past safe service limits?
A: The track adjuster piston jamming or locking up inside the cylinder frame, rapid degradation of new grease seals, and a track belt that continuously slackens shortly after being packed.
 
Q: What cleaning and assembly precautions prevent premature wear ring cutting when rebuilding an undercarriage tension cylinder?
A: Workshop mechanics must thoroughly polish any internal rust scale or burrs off the cylinder bore wall and coat the new polymer ring face with clean grease before sliding the piston in.
 
Q: Is this 4445998 wear guide ring a direct mechanical match across standard medium crawler fleets?
A: Yes, it is precision-packaged according to original factory technical blueprints to match the internal grease tension cylinder specifications of the listed 20-ton class excavator lines.
 
Q: How does this guiding wear ring handle continuous variable tracking loads when the machine strikes large rocks at high transit speeds?
A: The reinforced polymer compound undergoes advanced compression tempering during manufacturing, allowing the wear sleeve to absorb sudden lateral impact forces without flattening or splitting.
 
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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