The development of the machine tool industry pulling bearing demand

Web Design And Seo For www.china-webdesign.com

angular bearings - China Manufacturer

Thank you for inquiry my angular bearings, Tel : 0086-0379-64390888, E-mail: liuping@lyzyc.cc

http://www.lyzycbearing.com/angular-contact-ball-bearings/

The rolling bearing machine is mainly used for the following three parts: spindle, ball screw and generally drive shaft.ball bearing companies
Spindle bearings as the basis of matching pieces of the machine, its performance directly affects the speed of the machine, rotary precision, rigidity, anti-chatter vibration cutting performance, noise, temperature rise and thermal deformation, thereby affecting the precision machined parts, surface quality. Therefore, the high-performance machine must be equipped with the high performance of NSK bearings.

Rolling bearing accuracy is generally divided into P0, P6, P5, P4 and P2 five grade for the accuracy of precision machine tool spindle bearings for P5 and above level, CNC machine tools, machining centers, high-speed, high-precision machine tools spindle bearing, you need to choose P4 and above super-precision bearings.FAG bearing

Machine tool spindle bearings usually include deep groove ball bearings, angular contact ball bearings, cylindrical roller bearings, angular contact thrus t ball bearings, tapered roller bearings and thrust bearing six structure types.

With the rapid development of CNC technology, complex, high-speed, intelligent, sophisticated, environmentally friendly "has become the main trend of today s machine tool industry technology development. Among them, the high-speed processing can be efficiently to improve the machining efficiency and shorten the processing cycle of the workpiece. This requires that the machine tool spindle and its associated components to adapt to the needs of high-speed machining. CNC machine tool spindle FAG bearings basically limited angular contact ball bearings, cylindrical roller bearings, angular contact thrust ball bearings and tapered roller bearings four structure types.
Along with CNC machine tool spindle to speed the development of ceramic materials (mainly refers Si3N4 engineering ceramics) has a low density, high elastic modulus, thermal expansion coefficient, excellent wear res istance, high temperature resistance, corrosion resistance and other performance, which manufactures high-speed ideal material for precision bearings. Ceramic bearings are more widely used, in view of the intractability of the ceramic material, precision ceramic rolling element bearing is a ceramic, the inner and outer rings remain with chrome steel hybrid ceramic ball bearings.

The ball screw as sophisticated, efficient, sensitive transmission components, high precision lead screw, nut and ball should be used should also be paid to the choice of the axial rigidity and high friction torque, high running accuracy of the bearing. The ball screw support commonly used way thrust angular contact ball bearings, tapered roller bearings, needle roller and thrust roller bearings, deep groove ball bearings and thrust ball bearings. The ball screw support using the most is the contact angle of 60 ° single row angular contact thrust ball bearings, INA Bearing accuracy cla ss is mainly P4 class.

Rolling machine tools installed on the drive shaft in general, the requirements and selection of the same general machinery drive bearing, just to meet the strength and life requirements, bearing speed limit can not exceed the prescribed speed.roller thrust bearings

Under normal circumstances, TIMKEN bearing machine tool bearings we mentioned refers to the machine tool spindle bearings and ball screw bearings, precision machine tool bearing accuracy P5 P5 class spindle bearings and screw bearings.