Technical requirements for stainless steel shaft
1.Stainless SteelShaftmachining accuracy
1) Dimensional accuracy. Stainless SteelShaftThe dimensional accuracy of parts mainly refers to the dimensional accuracy of shaft diameter and shaft length. According to the application requirements, the dimensional accuracy of the main journal diameter is usuallyIT6-IT9, stainless steelShaftThe neck can also reachIT5. The length of the shaft is usually specified as the nominal size, and the corresponding tolerance can be given to the length of each step of the stepped shaft according to the requirements of use.
2) Geometric accuracy. The shaft part is usually supported on bearings by two journals. These two journals are called support journals and are the basis for shaft assembly. In addition to dimensional accuracy, the geometric accuracy (roundness, cylindricity) of the supporting journal is usually required. For journals of general accuracy, the geometric error should be limited to the diameter tolerance. When the requirements are high, the allowable tolerance value should be specified separately on the part drawing.
3) Mutual position accuracy. The coaxiality of the matching journal (transmission journal) in the shaft part relative to the supporting journal is a general requirement for their mutual positioning accuracy. Generally, for a shaft with ordinary accuracy, the radial runout of a supporting journal with matching accuracy is usually0.01-0.03mmwhile the high precision axis is0.001-0.005mm. In addition, the mutual position accuracy also has the coaxiality of the inner and outer cylindrical surfaces, and the perpendicularity of the axial positioning end face and the axis.
2.The surface roughness depends on the accuracy and operating speed of the machine.
The surface roughness requirements of the shaft parts are also different. In general, the surface roughness of the supporting journalRaValue is0.63-0.16μm. Match the surface roughness of the journalRaValue is2.5-0.63μm.
The above is the content collected by Fuzhou Sanhe Precision Axis Co., Ltd. If necessary, please contact us. The company focuses on manufacturing precision micro shaft. Strict quality requirements. From proofing to mass production, it can meet the needs of various quantities. The main products are armature shaft, precision shaft, rotor shaft, motor shaft, Stainless steel shaft, etc., the products are widely used in various types of micro motors, power tools, automobiles, precision machinery and other fields.
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2024-01-02
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