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RITO EX200-5 Swing Reduction Gear 9148922 EX200-2 EX200-3 EX210 Swing Gearbox 9148922 Slewing Gearbox Swing Device Assy

Severe metal wear across your original 9148922 slewing gearbox can quietly turn your classic excavator into an unpredictable safety hazard on site. As internal gear surfaces fatigue over years of heavy earthmoving, the upper house begins drifting on slopes even when controls are untouched. This dangerous mechanical drift compromises your bucket positioning accuracy, placing ground utility crews in immediate danger and threatening nearby active utility lines.

  • Item NO.:

    9148922
  • Order(MOQ):

    1
  • Payment:

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

    JAPAN
  • Lead Time:

    2-3 DAYS
  • Product Details

Regain absolute house rotation stability and original braking torque by installing our heavy-duty 9148922 Swing Reduction Gear. Engineered as a premier classic replacement assembly, this complete excavator swing gearbox and swing device assy delivers massive rotating torque, precision gear alignment, and exceptional wear life across EX200-5, EX200-2, and EX200-3 series.

9148922 Swing Gearbox

 
Product Specifications

Part Number  9148922
Part Name Swing Gearbox / Slewing Gearbox / Swing Device Assy
Compatible Brand Hitachi
Applicable Models Hitachi EX200-5, EX200-2, EX200-3, EX210 Excavators
Application Excavator hydraulic system
Material High Tensile Nodular Cast Iron and Hardened Alloy Steel
Product Color Industrial Gray
Working Temperature -20 to 120 degrees Celsius
Key Function Transmits and multiplies mechanical rotational force to drive the main chassis slewing ring gear, ensuring drift-free 360-degree cabin control
Condition 100% New, Aftermarket / OEM Quality
Packaging Wooden Case/Reinforced Carton/Neutral Packing / Customized Box

 

Key Features & Advantages


Precision

Induction-Hardened Pinion Shaft

The primary drive pinion gear features an extra-deep hardened wear layer to handle millions of rapid start-stop cycles.

Leak-Free

Heavy-Duty Internal Bearings

Large tapered roller bearings absorb massive lateral tilting forces during high-inertia bucket swings.

Direct Fitment

Nodular Iron Housing Casting

Rigid, high-density alloy casting resists housing deflection and ensures true internal gear alignment under stress.

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 distinct operational symptoms mean an EX200-5 slewing gearbox assembly requires immediate replacement?
A: Clear signs include a noticeable delay or jerk when starting a swing motion, loud grinding noises from beneath the cabin floor, and the upper house continuing to drift several degrees after the operator releases the joystick to neutral.
 
Q: What technical measures ensure an airtight, leak-free setup of this swing device?
A: You must completely clean the chassis mounting flange face, remove old gasket residue, apply a uniform layer of high-grade liquid sealant, and verify perfect vertical gear meshing with the main chassis ring gear before torquing the mounting bolts.
 
Q: How do procurement managers ensure a hassle-free mechanical fit across different generation lines?
A: Please cross-reference your factory parts directory with part number 9148922. Providing our engineering team with the exact tooth count on your existing output pinion gear ensures an exact drop-in match across alternative model variants.
 
Q: How does this swing reduction gear manage long-term operation in high-heat environments?
A: It features high-viscosity thermal gear alignment paths and premium seals that retain structural integrity under high temperatures, preventing oil thinning and maintaining stable rotational torque during long, demanding shifts.
 
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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