gear shaft

Positioning base the choice of gear shaft on the surface of the main processing purchase, to a large extent depends on selecting locating datum structure characteristics and the main shaft of the shaft parts on the surface of the main location accuracy requirement is decided the axis because benchmark may be the ideal not only ensure that benchmark is unified, and make the locating datum and the look datum coincidence outdoors circle intended for crude benchmark additionally, upon both sides of a sharp hole for great benchmark concrete also note the following factors: (1) when the decision between machined surface when the position accuracy of high, best done in a clamping surface processing (2) for rough machining or when two end middle holes (such as planetary gearbox spindle cone hole) can’t be used meant for positioning, to enhance the stiffness of the procedure system during workpiece processing, only cylindrical surface area or cylindrical surface area and one end middle hole can be used as positioning reference



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