The basic requirement of machine tool spindle of rolling bearing
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With the development of science and technology, machine tool spindle speed is more and more high, speed range is more and more big, therefore, is becoming more and more high to the requirement of bearing high speed stability. The temperature rise of the machine tool spindle bearing is an important factor to limit bearing rotating speed. Normally, correct selection of bearing types and tolerance grade, the configuration way, clearance (load), lubricants and lubrication method, such as size, can to a certain extent, improve the high speed performance of rolling bearings.
2. Life and carrying capacity
For general machine tools, the life of the spindle components is mainly refers to the use of the term to keep the spindle precision, thus, the precision of the bearing is asked to keep the performance to meet the requirements of the spindle component life. For heavy duty machine tools or strong cutting machine, should first consider the bearing capacity.
3. The stiffness and vibration resistance
To ensure the processing quality of machine tool, it is necessary to make the main shaft system has enough rigidity, otherwise it will produce a larger rerun error even flutter. Vibration resistance is refers to the resistance of forced vibration and self-excited vibration. Spindle component vibration resistance depends on the stiffness and damping of the shaft and bearing. The preloaded roller bearing can effectively improve the stiffness of the spindle system.
4. The noise
In high speed grinding machine, grinding head bearing noise is the main component of the whole machine noise, should choose low noise rolling bearing.
234407BM 234706BM 234406BM 517/2860V/YA 5610/2500 517/1720X1V 527/1181M 510/1180M 517/930 510/670 590/560 510/500 52780 59080 517/368M 51760U 517/238 6207-2ZN 6206-2ZN 6205-2ZN 6204-2ZN 6203-RZ 6203-2ZN 6202N 6202-2ZN 6201-2ZN 6200ZZ 6200-2ZN 62/32-ZN 62/32-Z 62/32N 62/32-2Z 62/32-2RZ 62/32-2RS 62/28-2RZ 62/22-2RZ 61996 61992 61988 61984
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1. The rotation speed and temperatureWith the development of science and technology, machine tool spindle speed is more and more high, speed range is more and more big, therefore, is becoming more and more high to the requirement of bearing high speed stability. The temperature rise of the machine tool spindle bearing is an important factor to limit bearing rotating speed. Normally, correct selection of bearing types and tolerance grade, the configuration way, clearance (load), lubricants and lubrication method, such as size, can to a certain extent, improve the high speed performance of rolling bearings.
2. Life and carrying capacity
For general machine tools, the life of the spindle components is mainly refers to the use of the term to keep the spindle precision, thus, the precision of the bearing is asked to keep the performance to meet the requirements of the spindle component life. For heavy duty machine tools or strong cutting machine, should first consider the bearing capacity.
3. The stiffness and vibration resistance
To ensure the processing quality of machine tool, it is necessary to make the main shaft system has enough rigidity, otherwise it will produce a larger rerun error even flutter. Vibration resistance is refers to the resistance of forced vibration and self-excited vibration. Spindle component vibration resistance depends on the stiffness and damping of the shaft and bearing. The preloaded roller bearing can effectively improve the stiffness of the spindle system.
4. The noise
In high speed grinding machine, grinding head bearing noise is the main component of the whole machine noise, should choose low noise rolling bearing.
