成人免费精品在线观看网站,天天日天天草天天干,欧欧美一级a爱高清在线看,欧美的黄色视频在线观看,露脸熟女对白刺激,国产成人va视频在线观看,日韩国产福利网站,亚洲中文字幕精品久久久,免费视频高清在线观看,亚洲一级福利导航

The adapter sleeve and withdrawal sleeve can fix bearings with tapered bore on the cylindrical crankshaft; The conical sleeve is helpful to the assembly and disassembly of bearing and can simplify the bearing supporting design of bearings.

 It is very common to use adapter sleeve, because it can fix bearings on the optical axis as well as step-shaped shaft. The withdrawal sleeve is easy for assembly without any supporting positioning devices on the shaft.

There must be a fixed pivot point on the axis, such as axial angle. The withdrawal sleeve does not embrace nuts, which should be ordered separately.