Grinding machine is a kind of grinding machine that grinds the plane or forming surface of the workpiece. It mainly uses the grinding wheel to rotate the workpiece to achieve the required flatness. Many customers will ask how to adjust the clearance of the grinding head bearing of the grinder? Xiaobian analyzes for you one by one. 1. Loosen the dovetail hanger block and adjust the bearing clearance. Adjust the nut so that the spindle rotates by hand (the bearing clearance is 0 at this time). 2. Tighten the dovetail suspending block (the hoisting force should not be too large), so that the bearing expands the aperture under the action of the expansion force of the suspending block, and fits closely with the bearing seat sleeve hole. At this point, the spindle can be rotated by hand. If it does not rotate or is too loose, it should be readjusted. 3. Screw the nut into the thread at the front end of the main shaft of the grinder, and tap around the nut with a soft metal such as copper to disperse the stress of the suspending, so that the outer cone of the grinding head bearing of the grinder fits better with the seat hole. Flexible, no abnormal sensations, otherwise it should be retuned. 4. Gently tighten the nut again to reduce the influence of the verticality error between the nuts on the accuracy of the bearing hole. Lift the main shaft of the grinder with a dial indicator, measure the bearing clearance of the grinding head of the grinder within the range of 0.008~0.015, and adjust it when it is out of tolerance. If you want to know more about grinding machine grinding head bearings, the manufacturer has 37 years of experience in grinding machine grinding head bearings!