For R250-7, R250, and R260 excavators operating in construction, quarrying, and earthmoving environments, a reliable swing gearbox is essential for maintaining smooth upper structure rotation, stable torque output, and efficient machine performance. Heavy-duty excavation requires a durable rotary reduction system capable of handling repeated swing cycles, high loads, and challenging working conditions. RITO Hydraulic Swing Gearbox 31EN-10070 R250-7 R250 R260 Excavator Swing Drive Rotary Reduction Assembly Unit provides efficient hydraulic power transmission, smooth speed reduction, and dependable slewing performance for Hyundai excavator applications. The 31EN-10070 swing reduction gear is commonly applied to Hyundai R250-7 and R250LC-7 excavator swing drive systems.
Item NO.:
31EN-10070Order(MOQ):
1pcsPayment:
T/T, WESTERN UNION, CHINESE BANK, PAYPALProduct Origin:
JAPANShipping Port:
Huangpu,GuangzhouLead Time:
In StockDesigned for professional excavator repair and replacement supply, this hydraulic swing drive reducer assembly delivers consistent rotary power transfer and reliable compatibility for Hyundai medium-to-large excavator fleets. It is an OEM-equivalent replacement solution for equipment distributors, maintenance workshops, and fleet operators who require durable swing components to reduce downtime, restore slewing efficiency, and maintain stable operation during continuous working cycles. The planetary reduction structure helps convert hydraulic motor power into controlled rotary movement while increasing output torque for smoother excavator rotation. The 31EN-10070 assembly is listed as a swing reduction gear used with related 31EN-10071 components in Hyundai R250 series swing systems.

| Part Number | 31EN‑10070 / 31EN‑10070 |
|---|---|
| Part Name | R250‑7 R250 R260 Excavator Hydraulic Swing Gearbox Swing Drive Rotary Reduction Assembly Unit |
| Compatible Brand | HYUNDAI |
| Applicable Models | R250‑7, R250, R260 Medium‑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 + medium‑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 smooth speed reduction and reliable torque output for R250-7, R250, and R260 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, shafts, carriers, and transmission components to withstand vibration, impact loads, and long operating cycles in demanding jobsite environments.

Matches 31EN-10070 specifications for Hyundai R250-7, R250, and R260 excavator hydraulic swing drive systems.

FAQ
Q: What symptoms indicate a Hyundai R250 swing gearbox may have internal wear?
A: Slow swing response, reduced rotation torque, abnormal gearbox noise, vibration, and unstable upper structure movement may indicate gearbox wear.
Q: How does the 31EN-10070 swing reduction gearbox improve excavator operation?
A: It reduces hydraulic motor speed while increasing torque output, helping the excavator achieve smoother and more controlled swing performance.
Q: What should buyers check before purchasing a 31EN-10070 swing gearbox?
A: Customers should confirm the excavator model, original part number, gearbox configuration, mounting specifications, and operating environment.
Q: Why choose a complete hydraulic swing reducer assembly for excavator maintenance?
A: A complete unit simplifies installation, reduces repair time, and helps restore reliable swing system performance more efficiently.
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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