1. ⑴ shaft parts materials commonly used material 45 steel shaft parts, high precision shafts can be used 40Cr, bearing steel GCr15, 65Mn spring steel shaft parts repair, ductile iron can also be used; for high-speed, heavy-duty shaft selection 20CrMnTi, 20Mn2B, 20Cr and other low-carbon steel or 38CrMoAl nitrided steel. ⑵ common shaft rod blank material and forgings; large shaft or axis adopts the structure of complex castings. After heating the forging blank, make the metal inside the fibrous tissue along the surface evenly distributed, obtain a higher tensile, bending and torsional strength. 1. CA6140 lathe spindle technical requirements and functions Spindle Lathe CA6140 is stepped on a mounting support bearings, transmission parts of cylindrical, conical surface automotive shafts, install sliding gear spline shaft parts, installation and chuck top conical surface and outside surface of the coupling nut fastening screw through the hole bar and so on. The following describes the technical requirements of the role and the main part of the spindle: ⑴ two spindle bearing journal bearing journal A, B roundness tolerance of 0.005mm, runout tolerance of 0.005mm; while bearing journal taper 1:12 The contact rate ≥70%; surface roughness Ra of 0.4mm; the dimensional accuracy of the bearing journal is IT5. Because the spindle bearing journal is used to install the support bearings, is part of the spindle assembly datum, so it's a direct impact on the manufacturing precision rotary precision spindle components. Shaft parts processing | Jiayuguan shaft parts | Please look Fuyuan gear provided by Luoyang 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!