With the development of high-speed and high-precision diagnostic instruments, high requirements have been put forward for the use of bearings and linear products, including high speed, high precision, high rigidity, low vibration, low noise, and maintenance free. By utilizing unique core technologies such as material technology, lubrication technology, and precision technology, we have met market demands and made significant contributions to improving the performance of medical devices. With the continuous expansion of the global market for medical devices, the global market sales of medical devices in 2014 were approximately 30 trillion yen. Medical devices can generally be divided into two categories: therapeutic devices (surgical knives, medical catheters, pacemakers, contact lenses, etc.) and diagnostic devices (X-ray CT devices, ultrasound diagnostic devices, MRI, etc.). In order to strengthen patient care, the technology of image diagnostic medical systems such as X-ray CT devices, ultrasound diagnostic devices, MRI, etc. is constantly improving. With the development of high-speed and high-precision diagnostic instruments, high requirements have been put forward for the use of bearings and linear products, including high speed, high precision, high rigidity, low vibration, low noise, and maintenance free. By utilizing unique core technologies such as material technology, lubrication technology, and precision technology to meet market demands, Zhongji Bearing Company has made significant contributions to improving the performance of medical devices.