2013年8月12日星期一

INA crossed roller bearings highlights many advantages


With the domestic high-precision machining equipment and the rapid development of increasingly mature, CNC dividing plate, vertical machining centers, vertical grinding machines and other high-precision CNC machining equipment more and more away from traditional design, with better performance cross roller INA bearings and turntable Precision bearing.
However, cross roller bearings in other respects, however, has INA rotary table bearings insurmountable advantage, first of all, in the structure of the cross roller bearings and INA rotary table bearings, cross roller bearing structure is relatively simple and more, through a row in a single raceway intersecting cylindrical rolling elements are arranged, it can get quite large axial, radial bearing capacity and overturning moment, while INA rotary table bearings must pass three rows of three-row cylindrical rolling element raceway in order to achieve the same effect, which in the production and processing to bring a lot of inconvenience, relative to the cross roller bearings, single row raceway, INA rotary table bearings production and processing greatly increased the complexity, the difficulty also increased significantly, which is production and processing equipment and production staff made a very high quality requirements, it is known that the current domestic high-precision processing equipment and the overall quality of industrial workers compared with foreign countries there are still a large gap, which is why the domestic production of INA rotary table bearings has never stability, the main reason is difficult to meet user requirements, this will inevitably cause the high reject rate INA rotary table bearings, substantial increase in production costs, the production cycle is too long and difficult to mass production.
Crossed roller bearings INA rotary table bearings just to make up deficiencies in these areas, a relatively simple structure is much less complicated production process, the production equipment is not so demanding, both relatively easy to achieve high accuracy, can be very Fast mass production capacity, the production cycle is relatively short, the cost relative to the INA rotary table bearings dropped significantly, for the user, the cost is much higher than the INA rotary table bearings, which is why in recent years, a gradual replacement of cross roller bearings INA rotary table bearings The main reason, it is conceivable that in the near future, high-precision cross roller bearings INA bound to replace a wide range turntable bearings.

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