Slew Bearing

What is slew bearing?

A slew bearing consists of an inner and outer ring, one of which usually contains the gear. Together with the connection holes in both rings, they enable optimized power transmission through simple and quick connections between adjacent machine components. Bearing raceways, together with rolling elements and cages or spacers, are designed to withstand loads acting singly or in combination in any direction.

Zenith Drive produces standard and customized slewing bearings in various designs with outer diameters from 0.2 to 18 m slewing bearing to meet the needs of specific applications.

Types of Slew Bearings

Four-point contact ball slewing bearing: A single row of ball elements that contacts the raceways at four distinct points, allowing the bearing to handle axial, radial, and tilting moment loads.

Crossed roller slewing bearing: Cylindrical rollers arranged in a crisscross pattern, offering higher load capacity and increased stiffness, making them suitable for applications requiring high rigidity and precision.

Double-row ball slewing bearing: Two rows of ball elements, increasing load-carrying capacity and stiffness, making them ideal for heavy-duty applications.

How Slew Bearings Work?

Slew bearings facilitate the smooth and precise rotation of a structure relative to another by managing axial, radial, and tilting moment loads simultaneously. The rolling elements (balls or rollers) between the inner and outer rings minimize friction, allowing for low-torque rotational movement.

How Slew Bearings are produced?

Slew bearing production involves various stages, including:

Raw material selection: High-quality steel or other suitable materials are chosen based on application requirements.

Processing: The raw material is processed into the necessary components, such as inner and outer rings, rolling elements, and spacers.

Heat treatment: Components undergo heat treatment to increase hardness and improve their wear resistance and durability.

Grinding and finishing: The components are machined and ground to achieve the required precision and surface finish.

Assembly: The inner and outer rings, rolling elements, and spacers are carefully assembled and aligned to achieve the proper preload and ensure smooth operation.

Quality control: The completed bearings undergo rigorous inspection and testing to ensure the desired performance, durability, and reliability.

Features of Slewing Bearings

High load-carrying capacity: Designed to handle axial, radial, and tilting moment loads.

Compact design: Can accommodate large loads in a compact space, making them ideal for space-constrained applications.

Low-friction operation: Rolling elements minimize friction between the inner and outer rings, reducing energy consumption and wear.

Customizable configurations: Can be designed with various gear types, sizes, and materials to meet application requirements.

Applications of Slew Bearings

Construction and heavy machinery: Used in cranes, excavators, and tunnel boring machines.

Renewable energy: Employed in wind turbines and solar tracking systems.

Robotics and automation equipment: Provide rotational movement for robotic arms and manipulators.

Aerospace and defense: Utilized in satellite dishes, radar mechanisms, and military vehicles.

Price of Slew Bearing

The price of a slew bearing varies depending on factors such as the bearing size, materials, load capacity, design, gear configuration, manufacturer, and customizations. For accurate pricing, it is recommended to contact suppliers or manufacturers directly with specific requirements.

Remember, while price is an important factor, selecting a slew bearing that meets performance and quality requirements is crucial to ensuring the optimal operation and longevity of your application.

Supplier of Slew bearing

Zenith Drive is a leading slew bearing manufacturer with a reputation for delivering high-quality, tailored solutions to the market. Their dedication to exceptional customer service, technical expertise, and continuous innovation positions them as a reliable partner for businesses seeking precision rotation and load management solutions.