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RITO Swing Reduction Sun Gear No.2 XKAQ-00175 Excavator Swing Reduction Sun Gear Bearing

RITO Swing Reduction Sun Gear No.2 XKAQ-00175 Excavator Swing Reduction Sun Gear Bearing

One seized bearing and your swing function is gone. XKAQ‑00175 prevents that – the journal surface and gear teeth come as a single, precision‑ground component. No separate bearing to misalign. No fitment errors. Just smooth 360° rotation, back online.

Item NO.:
XKAQ-00175
Order(MOQ):
1
Payment:
T/T, WESTERN UNION, CHINESE BANK,PAYPAL
Product Origin:
JAPAN
Lead Time：
2-3 DAYS

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Product Details

If you’re tired of swapping out bearings that fit too loose, XKAQ‑00175 is your answer. The difference is in the numbers: concentric tooth‑bearing alignment at 0.02mm, yielding 40% lower radial runout compared to separately assembled units. Wholesalers and miners – order in OEM, OEM+ or aftermarket. Stock ready.

XKAQ-00175 Excavator Swing Reduction Sun Gear

Product Specifications

Part Number	XKAQ-00175
Part Name	Excavator Swing Reduction Sun Gear
Compatible Brand	HYUNDAI
Applicable Models	R250-7 R250-9 R290-7 R300-7 R305-7 R320-7
Application	Excavator hydraulic system
Material	20CrMnTi carburizing steel
Product Color	Black oxide coating with anti-rust oil film
Working Temperature	-40°C to +100°C
Key Function	Transfers motor torque to planet gears; bearing journal supports radial load within swing reduction train
Condition	100% New, Aftermarket / OEM Quality
Packaging	Wooden Case/Reinforced Carton/Neutral Packing / Customized Box

Key Features & Advantages

Integrated Bearing Journal

Ground to exact tolerance for direct needle bearing or bushing fit, eliminating slip-fit wear and eccentric rotation.

Full Depth Case Hardened Teeth

Carburized layer 1.8-2.2mm deep resists pitting while bearing journal remains tough and crack-free.

Concentric Geometry Guarantee

Tooth pitch circle and bearing journal share same axis within 0.02mm, preventing uneven planet gear loading.

Multi-Drive Compatibility

Fits Hyundai R330-9 swing drive and cross-references to Hitachi/Kobelco 30-ton class swing reduction units.

Excavator Hydraulic Part

FAQ

Q: How to tell if sun gear bearing journal wear versus needle bearing failure?
A: Journal wear produces consistent metallic squeal during swing with no needle fragments. Bearing failure drops individual roller pieces. Measure journal OD - if undersized by >0.05mm, replace sun gear.

Q: What clearance is critical when installing XKAQ-00175 with new bearings?
A: Journal-to-needle radial clearance must be 0.025-0.045mm. Tighter causes overheating; looser creates hammering. Use plastigauge or micrometer before final assembly.

Q: Will XKAQ-00175 fit if my swing drive uses a different original part number?
A: Please provide your original sun gear tooth count (typically 12-14 teeth), module, and bearing journal OD. Our cross-reference matches to Hitachi EX300, Kobelco SK330, and Volvo EC300 swing drives.

Q: Does the bearing journal surface maintain integrity in abrasive or frozen conditions?
A: Yes – journal hardness (HRC 35-40) balances wear resistance with ductility, preventing brittle fracture at -40°C. Surface finish Ra ≤0.4μm resists abrasive dust ingress. Proven in Arctic pipeline and desert mining operations.

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

Related Tags :

XKAQ-00175

Excavator Swing Reduction Sun Gear

Swing Reduction Gear Sun Gear No.2

Swing Gearbox Sun Gear

Planetary Sun Gear Carrier Assy

Excavator Swing Gear

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Subject : RITO Swing Reduction Sun Gear No.2 XKAQ-00175 Excavator Swing Reduction Sun Gear Bearing

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