Machinery Attachments

What is an excavator slew bearing?

An excavator slew bearing, also known as a slewing ring or turntable bearing, is a large, specialized rotational bearing used in excavators to enable smooth and controlled 360-degree rotation of the upper structure (including the boom, arm, and bucket) relative to the undercarriage.

Where is an excavator slew bearing installed?

The excavator slew bearing is installed between the upper structure and the undercarriage of the excavator. It acts as the rotational connection point, allowing the upper structure to rotate while the undercarriage remains stationary.

Functions of excavator slew bearing

The primary functions of an excavator slew bearing include:

Rotation: Facilitate smooth and controlled 360-degree rotation of the upper structure, allowing for efficient and precise digging, lifting, and moving materials in multiple directions.

Load Management: Handle complex axial, radial, and tilting moment loads, ensuring stability, safety, and proper load distribution during the excavator's operation.

Precision: Contribute to the precise positioning and movement of the boom, arm, and bucket, enabling accurate digging and material handling.

How to buy an excavator slew ring

To buy an excavator slew bearing, follow these steps:

Determine your requirements: Identify the specific needs, such as load capacity, slewing ring size, material, and gear configuration, for your particular excavator model and application.

Research suppliers: Compile a list of manufacturers, dealers, and distributors that offer excavator slew bearings suitable for your excavator model.

Compare products: Evaluate the features, materials, and benefits offered by each supplier, comparing their products' prices, quality, and performance.

Investigate warranties and support: Inquire about the available warranty options and after-sales support for the slew bearing.

Verify compatibility: Ensure that the chosen slew bearing is compatible with your excavator model and adheres to any industry-specific requirements or regulations.

Make the purchase: After confirming that the slew bearing meets your requirements, complete the purchase and arrange for delivery and installation as necessary.

Why excavator slew bearing?

Excavator slew bearings are crucial components for effective and reliable excavator operation, as they enable smooth and controlled rotation while handling heavy loads. Without a properly functioning slew bearing, the excavator's performance, accuracy, and safety would be compromised.

Brands of excavators

Some well-known excavator brands include:

Caterpillar

Komatsu

Hitachi

Volvo

JCB

Kobelco

Hyundai

Kubota

Liebherr

Doosan

These excavator manufacturers typically offer a range of excavator models, sizes, and configurations, each with specific requirements for matching slew bearings. When choosing a slew bearing, it is essential to ensure compatibility with the excavator model to optimize performance, safety, and reliability.

Suppliers of Excavator Slew Bearings

ZENITH-DRIVE is a professional manufacturer of excavator slewing bearings and we can design and manufacture slew ring bearings, precision bearings, slew drives and custom bearings for major excavator brands. If you are looking for excavator bearing replacements, feel free to contact us.

By virtue of expertise team, advanced manufacturing technologies and strict quality management system, ZENITH-DRIVE takes the lead in the R&D of slewing bearings, which are designed with reasonable construction, light weight, good load carrying capacity and high versatility. The bearings’ diameters range from 200 to 10000mm and the accuracy covers PO, P6 and P5 class. Now, we can manufacture CCS, ABS, BV, GL and other certified bearings.