亚洲精品国产美女久久久_国产精品人妻一区二区三区四_午夜福利视频操_深田咏美亚洲一区白虎久久久_久久女厕一次看个够_美日韩肏屄大全_国产午夜寂寞_人妻 日韩 中文字幕 论坛_日韩人妻视频在线精品四区_WWW.久操_64国产精品久久久久久久_一本热道_91MM色视频_九九久久99一二专区免费观看_拳交无码一区综合

Reasons for large runout of precision piston rods:
1. Machining, such as incomplete grinding sequence;
2. The positioning reference is not the same or the form and position errors between the reference are very poor;
3. The fitting tolerance of each fitting component is not selected properly;
4. The support ring is worn, with the first two being before installation and the last two being after installation.
In various mechanical systems with linear reciprocating motion, precision piston rods play a supporting or transmission role, with high accuracy, good wear resistance, and high strength. Suitable for various cylinders, oil cylinders, piston rods, packaging, woodworking, textile, printing and dyeing machinery, die-casting machines, injection molding machines, and other mechanical guide rods, top rods, etc.