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RITO ZX350 ZX200 ZX210-3 ZX240-3 Excavator Bearing 4366256 4366356 4402637 Roller Bearing Ball Bearing

Annoyed by a rhythmic whistling sound from your pump casing, unusual gear-train play, or a sudden rise in internal fluid running temperatures? Running heavy tracked equipment on pitted, spalled roller tracks causes internal shafts to wobble, accelerating dynamic lip seal blowouts and risking expensive complete housing lockups. Re-establish rigid rotating shaft support across your internal mechanics by deploying the high-capacity RITO 4366256 heavy bearing set.

  • Item NO.:

    4366256
  • Order(MOQ):

    1
  • Payment:

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

    JAPAN
  • Lead Time:

    2-3 DAYS
  • Product Details

Global spare parts wholesalers and heavy maintenance depots require high-fatigue rolling components that maintain accurate centerline balance under massive axial thrusts. Our precision-ground RITO 4366256 line utilizes vacuum-degassed chrome steel tracks to carry grueling cyclic loads with minimal friction buildup. Buy this essential industrial assembly item to help your commercial accounts reduce unexpected field rebuild overhead.

4366256 Bearing Set

 
Product Specifications

Part Number  4366256
Part Name Roller Bearing Ball Bearing Excavator Bearing
Compatible Brand Hitachi
Applicable Models ZX350, ZX200, ZX210-3, ZX240-3 Excavators
Application Excavator hydraulic system
Material High Tensile Nodular Cast Iron and Hardened Alloy Steel
Product Color Industrial Gray
Working Temperature -20 to 100 degrees Celsius
Key Function Supporting high-speed internal shafts to minimize friction drag and contain radial or axial loading configurations
Condition 100% New, Aftermarket / OEM Quality
Packaging Wooden Case/Reinforced Carton/Neutral Packing / Customized Box

 

Key Features & Advantages


Precision

Vacuum-Degassed High-Chrome Steel

Premium metallurgical alloy offers exceptional fatigue resistance against track spalling and race bruising.

Leak-Free

Micro-Lapped Roller Surface Roundness

Ultra-smooth rolling elements dramatically lower friction coefficients to suppress operating thermal spikes.

Direct Fitment

Reinforced High-Tensile Retention Cage

Tough internal retainer frames keep balls or rollers evenly spaced under rapid shaft rev variations.

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 clear workshop evidence during a tear-down inspection alerts a rebuilder that these bearings must be swapped out?
A: Technicians will note fine pitting lines across the inner race trackways, dark scoring tracks on the rollers, or loose axial clearance when wiggling the bearing face by hand.
 
Q: What specific heating or pressing techniques must service technicians implement when seating this bearing onto a shaft?
A: Maintenance crews should utilize an induction heater to expand the inner ring evenly for a smooth slide-on fit, avoiding using heavy hammer impacts that bruise the steel races.
 
Q: Can parts distributors supply this 4366256 code as a unified replacement for main pump rear drive shafts?
A: Yes, this model code is dimensioned to universally support the high displacement internal drivelines of the listed heavy excavator pump models, matching factory drawings across those machinery lines.
 
Q: How does this industrial roller bearing handle continuous variable loading adjustments during all-day material handling shifts?
A: The race steel goes through an advanced deep-induction through-hardening conditioning process that leaves a highly resilient metallurgic matrix, preventing geometric distortion under severe continuous pressure surges.
 
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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