Bearing radial clearance of bearing selection, not all are required to work a minimum clearance linear bearings, you must choose the appropriate clearance according to the conditions. GB 4604-93, the bearing radial clearance group is divided into five groups -2, 0 group 3, 4, 5 groups, progressively larger clearance values, where 0 is set as the standard clearance. Basic radial clearance group for general operating conditions, temperature and commonly used conventional interference fit; shaft under special conditions of high temperature, high speed, low noise, low friction and other work 承则宜 large selection of radial clearance; right precision spindle, machine tool spindle bearings should use a smaller radial clearance; for roller bearings can keep a small amount of clearance work. In addition, it does not matter separate type of bearing clearance; and finally, after bearing installed operating clearance than the original clearance before installing small PMI linear bearings manufacturers, because bearing is subjected to a certain load rotation supply PMI linear bearings, also elastic deformation of the bearing and mating generating load. 3, from the center to the sides in order to tighten the screws linear bearings, the track and vertical mounting surface fitting, beginning from the central location to the ends of the packing can be more stable accuracy. After the vertical datum slightly tighten HIWIN linear bearings, locking force to strengthen the lateral planes, so that can effectively fit linear bearing lateral plane. 4. Use a torque wrench in accordance with a variety of materials eleven tightening torque, the linear bearing rails slowly tighten the screws. THK linear bearings transmission machinery manufacturers _ _ Korea and Taiwan linear bearings provided by Dongguan Transmission Machinery Co., Korea and Taiwan. Dongguan City, South Korea Taiwan Transmission Machinery Co., Ltd. (www.dghantai.com) is an industry leader in Dongguan, Guangdong, machine tool accessories, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. In Korea and Taiwan transmission machinery leadership with the staff warmly welcome all inquiries negotiations, Korea and Taiwan to create a better future transmission machinery.