Hitachi ZX450-3 swing 9247287 bearing for mini excavator parts
An excavator swing bearing (also called a slewing ring, turntable bearing, or rotary bearing) is a critical component that allows the upper structure (house) of an excavator to rotate 360 degrees smoothly while supporting heavy loads.
| Appliion | Crawler excavator |
| Part name | Excavator slew bearing |
| Machine model | ZX450-3 |
| part number | 9247287 |
| Brand | hitachi |
| Warranty | 6 months |
| Quality | High-accuracy |
How Does an Excavator Swing Bearing Work?
The swing bearing consists of two main rings:
Between these rings are rolling elements (balls or rollers) that reduce friction. A gear ring (internal or external) connects to the swing motor, enabling rotation.
Key Movements Supported:
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Rotation (360° continuous turning)
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Load Handling (axial, radial, and moment forces)
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Shock Absorption (from digging and lifting)
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FAQ:
1. If I only know the excavator model, but can not offer parts No., what should I do ?
If possible, you can send us pictures of old products, nameplate or the size for reference.
2. What is the warranty of the parts after I purchased?
The warranty is 6/12 Months based on the item details.
3. How can I pay the order?
We can receive payment through T/T, Paypal(for small amount),Alibaba trade assurance.
4. When will get the items after I place order?
Once your payment is confirmed, we will arrange the goods within 24 hours; if not in stock , we will inform you before placing the order.
5. How can I do if there is something wrong with the items?
First of all , I have confidence in the quality of our products ,if you really found something wrong ,pls provide pictures for us and we will check. After it is confirmed, pls return to us , we will offer the correct item.
6. What is your main products ?
We are specialized in the excavator spare parts, such as travel motor gearbox/parts, swing gearbox/motor/parts, hydraulic pump /parts and gear parts. If you need other excavator parts, we also can supply as your requirements.
