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RITO EX200-1 Drive Shaft 312104 HPV116 312104 Hydraulic Pump Main Drive Shaft Spline Shaft Excavator Pump Driving Device

Experiencing severe input oil seal blowouts, rapid drive shaft spline rounding, or a heavy structural rattling echoing across your engine flywheel junction? Any microscopic twist or concentricity error along a worn main shaft throws the entire piston rotating group out of line, causing internal valve friction and costly pump housing cracks. Safeguard your engine coupling core with the precision-ground RITO 312104 hydraulic pump main drive shaft.

  • Item NO.:

    312104
  • Order(MOQ):

    1
  • Payment:

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

    JAPAN
  • Lead Time:

    2-3 DAYS
  • Product Details

Experiencing severe input oil seal blowouts, rapid drive shaft spline rounding, or a heavy structural rattling echoing across your engine flywheel junction? Any microscopic twist or concentricity error along a worn main shaft throws the entire piston rotating group out of line, causing internal valve friction and costly pump housing cracks. Safeguard your engine coupling core with the precision-ground RITO 312104 hydraulic pump main drive shaft.

312104 Drive Shaft

 
Product Specifications

Part Number  312104
Part Name Hydraulic Pump Main Drive Shaft Spline Shaft Excavator Pump Driving Device
Compatible Brand Tongmyung
Applicable Models EX200-1 Excavators
Application Excavator hydraulic system
Material High-Hardness Alloy Steel
Product Color Polished Steel Silver and Bright Golden Bronze
Working Temperature -35°C to 125°C
Key Function Delivering engine mechanical drive from the flywheel into the main pump internal rotating groups
Condition 100% New, Aftermarket / OEM Quality
Packaging Wooden Case/Reinforced Carton/Neutral Packing / Customized Box

 

Key Features & Advantages


Precision

High-Tensile Forged Spline Core

Forged from premium alloy steel to withstand continuous twisting loads without structural cracking.

Leak-Free

Precision Profile Ground Journals

Mirror-polished surface finish reduces friction heat to protect sensitive high-speed shaft seals.

Direct Fitment

Balanced Core Concentric Line

Precision-machined line balance prevents destructive harmonic vibrations from destroying adjacent cylinder components.

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: What mechanical signs point to immediate tooth wear or a bent structure along this 312104 main pump input shaft?
A: Immediate indicators include rapid leakage of hydraulic fluid into the engine flywheel housing, structural whining noises under heavy system loads, and a complete loss of oil flow if the coupling splines strip out entirely.
 
Q: What alignment and assembly checks prevent premature wear on this high-pressure piston pump shaft?
A: Mechanics must replace supporting tapered bearings during reassembly, clean inner housing bearing seats, and apply clean grease to the oil lip seals to prevent dry wear during engine startup.
 
Q: Is this 312104 input spline shaft compatible across standard dual-pump tandem housings?
A: Yes, it is precision-machined to standard factory blueprints for the standard 116cc displacement pump housings used on 20-ton class machines, ensuring seamless interchangeability for warehouse managers.
 
Q: How does this main drive shaft resist breaking under sudden tracking shocks in freezing mining climates?
A: The alloy steel body undergoes complete deep thermal case-hardening to maximize low-temperature impact toughness, preventing brittle structural fractures even when handling high-pressure attachment loads.
 

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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