Swing motion sluggish or noisy on your R330-9S? A spalled or cracked Xkaq-00998 swing ring gear disrupts the meshing path from the swing motor, causing vibration that accelerates wear on the pinion and motor shaft. RITO's precision ring gear restores quiet, torque-stable cab rotation.
Item NO.:
Xkaq-00998-OTOrder(MOQ):
1pcsPayment:
T/T, WESTERN UNION, CHINESE BANK,PAYPALProduct Origin:
JAPANShipping Port:
Huangpu,GuangzhouLead Time：
In StockXkaq-00998 Swing Ring Gear for Hyundai R330-9S excavator. The internal ring gear is the stationary reaction element of the swing reduction gearbox; its tooth profile and surface hardness directly determine how smoothly the entire upper structure slews. Teeth precision-cut and heat-treated for high surface hardness with a tough ductile core.
| Part Number | Xkaq-00998 |
|---|---|
| Part Name | Swing Ring Gear |
| Compatible Brand | Hyundai |
| Applicable Models | R330-9S Excavator Swing Drive |
| Application | Fixed reaction ring in the hydraulic swing reduction gearbox |
| Material | Alloy steel, case-hardened internal teeth |
| Product Color | Metallic finish |
| Working Temperature | -30°C~+80°C |
| Key Function | Provides stationary reaction torque to multiply swing motor output at the pinion |
| Condition | 100% New Aftermarket OEM Quality |
| Packaging | Wooden Case Reinforced Carton Neutral Packing Customized Box |
Internal tooth surfaces carburised to HRC 58-62, resisting micro-pitting and abrasive wear that accumulates over millions of swing cycles.
Internal gear teeth cut to DIN 6 quality, maintaining correct involute form for low-noise meshing with the planet gears at all swing speeds.
Outer flange machined to OEM bolt-circle dimensions for precise, rattle-free mounting in the swing gearbox housing.
Designed for simultaneous replacement with the Xkaq-00467 sun gear to fully restore the planetary set efficiency in one service operation.
FAQ
Q: What symptoms indicate the Xkaq-00998 ring gear needs replacing?
A: Swing speed variation across the rotation arc, audible gear chatter or metallic rattle during swing deceleration, swing circle play (upper structure can be rocked by hand), and metal flakes visible in the swing gearbox oil.
Q: Should I replace the Xkaq-00998 ring gear together with the Xkaq-00467 sun gear?
A: Yes, when one component shows significant wear, the entire planetary set load path has been compromised. Replacing only the ring gear and leaving worn planet gears or sun gear accelerates re-failure within one season.
Q: Is Xkaq-00998 also suitable for R340LC-9S?
A: Contact our technical team with the R340LC-9S swing gearbox model to verify dimensional compatibility before ordering.
Q: How to confirm Xkaq-00998 fits my R330-9S swing gearbox?
A: Match tooth count, module and flange bolt-circle diameter. Supply the gearbox serial number to our team for exact cross-reference.
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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