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What should you pay attention to when purchasing rotary table bearings?

Rotary table bearings, also known as slewing bearings or turntable bearings, are specialized bearings designed to support axial, radial, and moment loads while allowing smooth rotation. These bearings are commonly used in applications where there is a need for a rotating platform or structure, such as in cranes, excavators, turntables, robotics, and other heavy machinery. 

Rotary Table Bearings Features

Rotary table bearings

Single Row or Double Row:

Rotary table bearings can be single-row or double-row designs. Single-row bearings are suitable for applications with light to moderate loads, while double-row bearings provide increased load-carrying capacity.

Gear Options:

Many rotary table bearings come with gear teeth on the outer or inner ring, allowing for smooth rotation when coupled with a pinion or gear motor. This design is common in applications where controlled and precise rotation is required.

Internal Gear, External Gear, or Gearless:

Internal gear bearings have gear teeth on the inner ring, external gear bearings have teeth on the outer ring, and gearless bearings lack gear teeth altogether. The choice depends on the specific application requirements.

Sealing and Lubrication:

Rotary table bearings are often designed to be sealed to prevent contaminants from entering and to retain lubrication. Proper sealing and lubrication are crucial for the longevity and performance of the bearing.

Mounting Holes:

Some rotary table bearings come with pre-drilled mounting holes, making it easier to attach the bearing to the surrounding structure. This feature simplifies the installation process.

High Load Capacity:

Rotary table bearings are engineered to handle axial, radial, and moment loads simultaneously. This makes them suitable for applications where heavy loads and moments are present.


Rotary table bearings

Application-Specific Requirements:

Choose a rotary table bearing based on the specific requirements of the application, such as load capacity, rotation speed, and environmental conditions.

Size and Dimensions:

Consider the size and dimensions of the bearing, ensuring that it fits within the available space and can accommodate the intended loads.

Precision and Accuracy:

For applications that require high precision and accuracy, such as in machine tools and robotics, select a rotary table bearing with the appropriate level of precision.

Installation and Maintenance:

Follow the manufacturer's guidelines for installation and maintenance to ensure optimal performance and longevity of the bearing.

Environmental Factors:

Consider the operating environment, including temperature, humidity, and exposure to contaminants, and choose a bearing with suitable sealing and protection features.

Rotary table bearings play a crucial role in various industrial applications, providing the necessary support for rotating structures. When selecting a rotary table bearing, it's important to consider the specific requirements of the application and choose a bearing that meets those criteria.

More information about rotary table bearings:

What are the features of rotary table bearings?

What are the models of rotary bearing?

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