Due to the heavy weight of the grinding wheel in the centerless grinder, two static or dynamic balance tests must be conducted to adjust the new grinding wheel after installation. If it is unbalanced, the grinding wheel will produce vibration during high-speed operation, which will affect the machining accuracy. Dynamic balancing requires the use of a dynamic balancing instrument, while static balancing requires the use of a balancing frame and balancing spindle.

　　Dynamic balancing is measured using instruments, which I won't introduce here. Generally, for static balancing, newly purchased machine tools will come with a set. Place the balance spindle into the cone sleeve of the newly installed grinding wheel's chuck and secure it with a nut. Then they are placed together on the balance frame, and several balance weights are installed in the annular groove of the grinding wheel chuck. By adjusting the position of the balance weights, the center of gravity of the grinding wheel is aligned with its axis of rotation. Then install it on the machine tool, use a grinding wheel dresser to round the grinding wheel, and place it back on the balance frame. Balance again according to the above method. Finally, it was installed back onto the machine tool, which is considered complete. Attention when doing cutting and grinding, make sure that the outer end face of the grinding wheel is flush with the outer end face of the guide wheel. If it doesn't work, we need to adjust the gasket. Finally, make its end face flush.