For R305-9, R305, and R310 excavators operating in construction, quarrying, and earthmoving applications, a reliable swing gearbox is essential for maintaining smooth upper structure rotation, strong torque output, and efficient machine productivity. Heavy-duty excavation operations require a durable rotary reduction system that can handle continuous swing cycles, hydraulic loads, and demanding working environments. RITO R305-9 R305 R310 Excavator Swing Gearbox 31Q8-10141 Hydraulic Rotary Drive Reduction Reducer Assembly Unit provides stable hydraulic power transmission, reliable torque conversion, and smooth slewing performance for Hyundai excavator swing systems. The 31Q8-10141 swing reduction gear is commonly associated with Hyundai R300LC-9A, R300LC-9S, and R305LC-7 excavator swing drive applications.
Item NO.:
31Q8-10141Order(MOQ):
1pcsPayment:
T/T, WESTERN UNION, CHINESE BANK, PAYPALProduct Origin:
JAPANShipping Port:
Huangpu,GuangzhouLead Time：
In StockDesigned for professional excavator maintenance and replacement supply, this hydraulic swing drive reducer assembly delivers consistent rotary power transfer and dependable compatibility for Hyundai heavy equipment fleets. It is an OEM-equivalent replacement solution for equipment distributors, repair workshops, and fleet operators who require durable swing components to reduce downtime, restore slewing efficiency, and maintain stable operation during continuous working cycles. The 31Q8-10141 assembly uses a planetary reduction structure with internal transmission components designed for smooth speed reduction and increased output torque during excavator rotation.
| Part Number | 31Q8‑10141 / 31Q8‑10141 |
|---|---|
| Part Name | R305‑9 R305 R310 Excavator Swing Gearbox Hydraulic Rotary Drive Reduction Reducer Assembly Unit |
| Compatible Brand | HYUNDAI |
| Applicable Models | R305‑9, R305, R310 Heavy-Duty Construction Excavator |
| Application | Hydraulic drive system for excavator upper body slewing; widely applied in municipal engineering, highway construction, quarry excavation and bulk material stacking work |
| Material | High‑strength forged alloy steel + heavy‑load wear‑resistant bronze friction parts |
| Product Color | Matte anti‑rust industrial metallic gray |
| Working Temperature | -22℃ ~ +58℃ |
| Key Function | Convert hydraulic pressure into stable slewing torque to drive upper carriage rotation for infrastructure and earthmoving projects |
| Condition | 100% New, Aftermarket / OEM Equivalent Quality |
| Packaging | Wooden Case/Reinforced Carton/Neutral Packing / Customized Box |
Provides strong swing force and smooth speed reduction for R305-9, R305, and R310 excavator upper structure rotation.
Converts hydraulic motor power through the reducer system to achieve smooth and controlled slewing movement.
Built with high-strength internal gears and transmission components to withstand vibration, impact loads, and long operating cycles in demanding jobsite environments.
Matches 31Q8-10141 specifications for Hyundai R305-series excavator hydraulic swing drive systems.
FAQ
Q: What performance issues can appear when a R305 swing gearbox starts wearing?
A: Reduced swing speed, weak rotation force, unusual gearbox noise, vibration, and unstable upper structure movement may indicate internal component wear.
Q: How does the 31Q8-10141 rotary reduction unit improve excavator operation?
A: It reduces hydraulic motor speed while increasing torque output, helping the excavator achieve smoother and more controlled swing movement.
Q: What should buyers confirm before ordering a 31Q8-10141 swing gearbox?
A: Customers should verify the excavator model, original part number, gearbox structure, mounting specifications, and working conditions to ensure correct matching.
Q: Why choose a complete hydraulic swing reducer assembly for excavator repairs?
A: A complete unit simplifies installation, reduces maintenance time, and helps restore reliable swing system performance with improved replacement efficiency.
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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