Excessive swing gearbox vibration and irregular rotation can increase downtime and accelerate internal gear damage in excavators. The RITO 188-4170-OT roller bearing is engineered for CAT 336D, 325D, and 330D swing gearbox systems, delivering stable rotational support and smoother power transmission in demanding construction applications.
Item NO.:
188-4170Order(MOQ):
1Payment:
T/T, WESTERN UNION, CHINESE BANK,PAYPALProduct Origin:
JAPANLead Time:
2-3 DAYSDesigned for machinery parts traders, repair workshops, and mining equipment operators, this excavator bearing offers strong load endurance and reliable anti-friction performance. Its precision-machined structure helps minimize mechanical wear, improve swing system stability, and extend gearbox operating life under continuous heavy-duty conditions.

| Part Number | 188-4170 |
|---|---|
| Part Name | Bearing |
| Compatible Brand | Caterpillar |
| Applicable Models | CAT 325D, 330D, 336D |
| Application | Excavator |
| Material | High-grade Bearing Steel |
| Product Color | Metallic Silver |
| Working Temperature | -30°C to 120°C |
| Key Function | Support rotating gearbox components |
| Condition | 100% New, Aftermarket / OEM Quality |
| Packaging | Wooden Case/Reinforced Carton/Neutral Packing / Customized Box |

Helps maintain stable gearbox rotation and reduces abnormal movement during operation.




FAQ
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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