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[Precision] Spline gear shaft free what?
         Precision shaft spline gear means rotatably supported parts and therewith to transmit rotary motion, torque or moment of mechanical parts. Precision gear spline shaft is generally circular rod-shaped metal, can have different diameters paragraphs. Machine rotary movement of the parts to be assembled on the shaft.
         Depending on the shape of the axes, precision gear shaft splines can be divided into two types of crank shafts and straight. According to the case bearing shaft, precision gear spline shaft can be divided into: ① shaft, both bear and bear torque moment at work, is the most common mechanical axis, such as a variety of speed reducer shaft. ② spindle for supporting the rotating parts not only bending moments transmitted torque, some rotation of the spindle, such as a railway vehicle shaft, and some are not rotatable spindle, such as supporting the pulley shaft. ③ shaft, is mainly used to transmit torque without bending moments, such as a crane moving mechanism in the long axis of the car's drive shaft and so on.

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