According shaft parts function and working conditions, the technical requirements, mainly in the following areas: geometry precision roundness important mainly refers to the surface of the journal surface, an outer conical surface, such as cone, cylinder degrees. The error should generally be limited to the size of the tolerance range of automotive shafts, shaft parts for precision shaft machinery required otherwise provided in the parts diagram its geometry accuracy. Axis is one of the typical machining parts in common. 2. Impossible for the center hole of the hollow shaft or short shaft positioning shaft parts to repair the situation, the outer surface of the shaft can be used for positioning the outer surface of the clamping position, clamping and torque transmission. Generally use the three-jaw chuck, four jaw chuck shaft parts, such as universal fixture, or a variety of high-precision automatic centering fixture, such as a liquid plastic thin-walled centering fixture, such as a diaphragm chuck. 3. With the outer surface of various plug or mandrel rod hollow shaft positioning setup process, the common variety of plug or mandrel rod with a center hole to install the workpiece. When small cone common plug; mandrel rod large cone used with plug and turning shaft parts, shaft parts, please look for the gear provided by Luoyang Fuyuan Fuyuan Gear Machinery Co. Luoyang Fuyuan Gear Machinery Co., Ltd. (www.lyfycl.com) strong, credible, in Luoyang gear industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead Fuyuan gear and you hand into the brilliant, for a better future!