Ball Chengde supply Bot Seiko (certified), Ball provided by Shandong Bot Seiko Corporation. Shandong Bot Seiko Co., Ltd. (www.jsinfo.com.cn) is specialized in the "ball screw, lead screw, linear guide, spindle," the enterprise, the company of "honesty, hard service" concept, for You provide the most quality products and services. Welcome to inquire! Contact: Zhang complete. Shandong Bot Seiko Science and Technology Co., Ltd. The company was identified as "high-tech enterprise", "National Torch Plan Key High-tech Enterprise", "National Torch Program key support units"; the company was identified as "two national safety and quality standards enterprise-class "; the company passed ISO9000 and ISO14000 certification. Company "Bot" trademark was identified as "China Famous Brand" Cangzhou Ball enterprises, "Bot (BT) card", "ball screw" was identified as "Shandong Famous Brand." Screw support bearings gap detection and repair, such as a dial indicator to measure the screw in the screw does not swing to reverse rotation pointer, indicating that the screw does not traverse. Chengde Ball as dial pointer swing supply, indicating that the screw has a rocky ledge phenomenon. The difference between the maximum and minimum measurement dial indicator value is the axial screw ran away. At this point, we have to check whether the support bearing caps lock back, whether support bearings are worn failure, pre-load bearing washers are appropriate. If there is no problem Ball Bearings, just re-do the pre-load washer with it. If the bearing is damaged, you need to replace the bearing off again to do with pre-load washer, then back cap back tight. Screw axial movement lies in the accuracy of the size of the support bearing pre-load washers. Screw mounting accuracy of the ideal state is no positive and negative space, support bearings also have 0.02mm about interference.