New Holland E135 swing bearing YY40F00006F3 Swing Circle

New Holland E135 swing bearing YY40F00006F3 Swing Circle

The slewing ring (also known as a slewing bearing or turntable bearing) is a critical component in excavators, enabling 360-degree rotation between the upper structure (house) and the undercarriage. It supports axial, radial, and moment loads while ensuring smooth movement for digging, lifting, and material handling operations.

Working Principle

The slewing ring operates as a large-scale anti-friction bearing:

1. Rotation Mechanism: The excavator’s hydraulic motor drives a pinion gear that meshes with the slewing ring’s gear teeth, enabling rotation.

2. Load Distribution: Combines axial (vertical), radial (side), and moment (tilting) loads from digging forces.

3. Lubrication: Grease reduces friction between rolling elements and raceways, preventing metal-to-metal contact.

Key Physics:

• Static load capacity: Up to 5,000 kN (for mining excavators).

• Rotational speed: Typically 0–10 RPM.

Our advantages

1.Strong part number database.
If you can provide the right model and part number, we can supply the right product.
2.Professional and experienced salesperson.
Our founder has been into this field for more than 7 years, with rich experiences.
3.Strict and complete company rules.
We will try our best to meet customer’s delivery time. Before delivery, we must verify the part number or pictures of products one by one, to make sure that customers can receive high-quality and right-quantity goods.
4.Good management system.
No matter how big or small order, as long as customers place the order, we will provide exporting service free for charge.
5.Good service attitude.
If the customer has any questions about the product, In our receiving and knowing the situation, we will help the customer to solve the problem in the first place. As long as customers’ requirements are reasonable, we will endeavour to make them satisfied.

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/ass’y/parts, swing gearbox/ass’y/motor/parts, hydraulic pump assy/parts and gear parts. If you need other excavator parts, we also can supply as your requirements.