the advantages of high precision cross roller bearings compared with traditional bearings
- 2022/2/28 18:55:53
Today, with the rapid development of social science and technology, not only science and technology are changing rapidly, but our bearing industry is also undergoing earth-shaking changes. In terms of performance, high-precision cross roller bearings have replaced the use of traditional bearings in many aspects. High-precision cross roller bearings are better than traditional bearings in many aspects of use. Now let's compare the advantages of cross roller bearings and traditional bearings.
The characteristic of high-precision cross roller bearings is that the cylindrical rollers are arranged vertically on a 90° V-groove rolling surface through an isolation block. Therefore, cross roller bearings can withstand radial load, axial load and torque load and other multi-direction load. Compared with the traditional combination of thrust bearing and radial centering bearing, the cross roller bearing has a compact structure and small volume, and simplifies the design of the table, thus reducing the cost of the turntable.
In addition, due to the use of optimized preload, this kind of bearing has high stiffness, so the stiffness and accuracy of the turntable are also guaranteed. Thanks to the design of two rows of cross rollers, the effective span of the bearing can be significantly improved, so the bearing has a high anti-overturning moment. In cross roller bearings, it is divided into two types: the first is cross cylindrical roller bearings, the second is cross tapered roller bearings.
Generally, the price of cross cylindrical roller bearings is lower than that of cross tapered roller bearings, which is suitable for relatively low speed turntable applications; The cross tapered roller bearing adopts the pure rolling design of tapered roller, which has the advantages of high running accuracy, strong speed capacity, reduced shaft length and processing cost. Cross roller bearings are suitable for various types of vertical or horizontal boring machines, as well as vertical grinding, vertical turning and large gear milling machines.
Although the structure of cross roller bearings is special, the production and processing process is relatively cumbersome, which has a certain pursuit for operators. Relying on the advantages of new equipment, it can quickly form the capacity of mass production, quickly improve the production cycle, and the cost is significantly reduced compared with turntable bearings. For users, the cost performance is much higher than conventional bearings, which is the main reason why cross roller bearings gradually replace conventional bearings in recent years.
