One of the main structural elements metalworking machines is spindle assembly (spindle), which used to hold cutting tools or workpieces. The rigidity plays a decisive role in ensuring accuracy and efficiency machine as whole. assessment shaft stiffness carried out on basis analysis static bending shaft, made it possible formulate solve problems optimizing according characteristics for two suppo...

The article provides a mathematical model of the vertical oscillations main shaft on elastic supports sewing machine, taking into account inertial forces, as well rigidity characteristics rubber supports. regularities designs are experimentally determined for various modes grinding materials. An effective design scheme bearing with shock absorbers machine has been developed and recommended.