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What are the advantages of crossed roller bearings?

Source:未知Author:HONBbearing06 Addtime:2019-12-07 Click:
Crossed roller bearing is a special type of bearing with inner ring division and outer ring rotation. Since the inner ring or outer ring is divided, it is fixed together with the cross roller ring after loading the roller and spacer retainer, so it is easy to install the crossed roller ring. Because the cross roller bearing is a structure that divides the inner ring and the outer ring, the bearing clearance can be adjusted. Even if it is preloaded, it can rotate with high precision. Because of the special structure, it is generally used for the joint bearing of industrial robots. Today we will talk about the crossed roller bearings, let's take a look at it!

There are two main types of bearings used in industrial robots: thin - walled bearings with equal section and crossed roller bearings. The bearing of industrial robot is one of its key parts, which is suitable for the joint parts or rotating parts of industrial robot, rotating table of machining center, rotating part of manipulator, precision rotating table, medical instrument, measuring instrument, IC manufacturing device and so on.
Advantages of crossed roller bearing for robot:
 
1. Excellent rotation accuracy
The inner structure of the crossed roller bearing adopts a 90°vertical cross arrangement of the rollers, and the spacers or retainers are installed between the rollers to prevent the tilting of the rollers or the friction between the rollers, effectively preventing the increase of rotating torque. In addition, there will not be a roller contact or lock phenomenon; At the same time, because the inner and outer ring is a segmented structure, the clearance can be adjusted to obtain high-precision rotational motion even if it is preloaded.

2. Simplified operation and installation
The outer or inner rings, which are divided into two parts, are fixed together after the roller and retainer are loaded, so the operation is very simple.

3. Bear larger axial and radial load
Because the rollers are arranged perpendicular to each other through the spacer retainer on the 90°v-groove rolling surface, this design allows the crossed roller bearings to withstand a large radial load, axial load and torque load in all directions.

4. Greatly saves installation space
The inner and outer ring dimensions of the crossed roller bearing are miniaturized to a small extent, especially the ultra-thin structure is a small size close to the limit, and has high rigidity, which is suitable for the joint parts or rotating parts of industrial robot, rotating table of machining center, rotating part of manipulator, precision rotating table, medical instrument, measuring instrument, IC manufacturing device and so on.

Above are the advantages of crossed roller bearings for industrial robots. In general, regarding the bearings on the industrial robots, the crossed roller bearing will be definitely a best choice. It can make the joint of industrial robot more flexible, and it has excellent rotating precision, whose operation is also very simple. The bearing can support a larger radial and axial load and can greatly save the installation space. These are all for today's share information, if you have any questions, please leave a message or call us. Your inquiries and orders will be so welcomed.

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