The main journal diameter precision requirements are usually based on the use of IT6 ~ IT9, even for IT5. As for the size requirements are less stringent in the longitudinal direction, usually only provides basic dimensions. 2) the accuracy of the geometry precision geometry refers journal roundness, cylindrical. These errors will affect the quality of their contact with the mating parts. Geometry of the general accuracy of the journal should be limited to within the diameter tolerance range, high precision of geometry when precision shaft parts, to a predetermined shape tolerance on the part drawing. Luoyang Fuyuan Gear Machinery Co., Ltd. specializes in producing bevel gears, shafts, gears and other disc-type automotive shafts, please come to order. 2. For the case can not use the center hole of the hollow shaft or short shaft positioning, cylindrical surface available for positioning the outer surface of the shaft positioning clamping, gripping 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 shaft parts forging | Gear 2015 Fuyuan whole network lowest price | Qingdao Fuyuan shaft parts provided by Luoyang Gear Machinery Limited. Luoyang Fuyuan Gear Machinery Co., Ltd. (www.lyfycl.com) is a leader in Luoyang, Henan Province, gear over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. Fuyuan gear in leadership with the staff warmly welcome all inquiries negotiations to create a better future Fuyuan gear.