countered in one of the ponents. It is mainly used for support in mechanical gears, pulleys, cams and connecting rods and other transmission parts, to transfer torque. Different forms according to the structure, the axis can be divided into stepped shaft, taper spindle, axis, hollow shaft, crankshaft, camshaft, eccentric shafts, all kinds of screw shaft such as short axis aspect ratio of less than 5 large known as the slender shaft 20, most shaft in between; shaft bearings bearing, and bearing with the shaft segment called the journal. Journal is the axis of the assembly base, and their general requirements for precision and high surface quality. According to parts of the structure and function, using the knowledge of locating and clamping fixture pleted.РKey words:Shaft, journal, fixtures
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