Keywords: ceramic ball, high speed, lower lubrication cost, high-precision bearing, high precision angular contact ball bearing
Since the establishment in 1988, Wuxi No.2 Bearing Co., Ltd. has been a sci-tech private enterprise, engaging in production of high-precision bearing. Currently, the company mainly produces high precision angular contact ball bearing, deep groove ball bearing, and double-row cylindrical roller bearing, the bearings are mainly applied to precision machine tool spindle, ball screw, chemical fiber thread spinner, turbocharger,compressor, gear shaft, transmission shaft and other kinds of applies of precision machine.
The high-speed, heat-resistant, high-rigidity and high-reliability ceramic rolling element are realized.
Heat resistance, durability, lightweight, low expansion, insulation and other properties, ceramics is a lot of excellent characteristics of new materials, its applications are extremely wide. Wuxi 2-axis focuses on the excellent properties of silicon nitride (Si3N4) in ceramic materials and makes use of decades of accumulated bearing technology to apply it to bearing rollers, ceramic ball bearings achieve the ultra-high-speed, ultra-high-precision steel ball bearings to achieve the rotation requirements, so that the use of bearing products have been greatly improved, the use of ceramic ball bearings than steel ball bearings, limit speed increase 1.2 times, life is more than 2 times of steel ball bearings, in the spindle and precision machinery has been widely recognized.
Burn resistance
Compared with steel ball, the ceramic ball has better burn resistance. With the temperature rising slowly, the temperature of ceramic ball bearing is lower than steel ball-bearing by 3.5 ° °C.
■ high speed and low fever
Lightweight, low Coefficient of thermal expansion
Because it weighs 40% less than a steel ball, it acts on the roller, which is less than the pre-tightening force caused by high-speed rotation as the temperature rises
The centrifugal force has little effect and is favorable for high-speed rotation. The steel ball is lower and has less calorific value of 3-5 ° Co.
Low friction
Compared with steel ball, the ceramic ball has less slip, less heat, and is favorable for high-speed rotation. The limit speed can be increased by about 1.2 times.
Therefore, low heating can achieve ultra-high-speed stable rotation and increase its life.
Longer life
Due to its material characteristics, the service life of composite bearings can reach steel ball bearings, life twice.
The working life of machinery has been increased obviously.
Higher speed
Because of its friction and lower moment of inertia, the speed of composite bearings can be increased by up to 30% O over steel ball bearings
Lower lubrication cost
The maximum speed of grease and oil lubrication is also increased.
Therefore, grease lubrication can often be used instead of cost-intensive oil lubrication.
Greater rigidity
The material properties improve the axial and radial rigidity. Its advantages are increased accuracy, accuracy, and critical resonance changes.
Improve machining accuracy
Greater stiffness, reduced thermal expansion and lower vibration of the bearings allow for maximum machining accuracy.
