‌‌The steps for replacing the bearing of the vertical shaft impact crusher are as follows‌:

‌Disconnect the power and close all valves‌: First, you need to disconnect the power and close all valves of the vertical shaft impact crusher to ensure safe operation. ‌

‌Remove the base and rotor‌: Start disassembly from the base, lift the feed hopper and the crusher top cover, and then remove the rotor.

‌Release the belt tension and remove the pulley‌: Release the belt tension and remove the drive belt, and then remove the crusher pulley.

‌Remove the bottom and top conical rings‌: Remove the bolts of the bottom inner conical ring and the top conical ring, then use the tapping headless screw to remove the top conical ring, and insert the eye bolt into the top of the main shaft.

‌Lift the bearing and clean‌: Lift the bearing, remove the bearing seal cover and the bearing body, wipe it clean with an oily cloth or paper towel, and soak it in citric acid solution and clean it.

‌Install the new bearing‌: Apply an appropriate amount of grease, install the new bearing on the crusher according to the standard operating procedures, and ensure that the model of the new bearing is consistent with the old bearing.

‌Things to note when replacing bearings in a vertical shaft impact crusher‌:

‌Size selection‌: Select the appropriate rolling bearing according to the size of the bearing. Use roller bearings for larger shafts and ball bearings for smaller shafts. ‌

‌Load size and direction‌: Select the appropriate bearing type according to the size and direction of the load. For example, choose deep groove ball bearings or cylindrical roller bearings when bearing radial loads; choose thrust ball bearings or thrust roller bearings when bearing axial loads.

‌Self-aligning performance‌: When there is an angular error in the axis or the shaft stiffness is small, choose self-aligning ball or self-aligning roller bearings with good self-aligning performance.

‌Speed limit‌: Make sure the speed of the bearing does not exceed its limited range to avoid overheating and damage.

These steps and precautions can help ensure the safety and effectiveness of the replacement of bearings in a vertical shaft impact crusher. In actual operation, it is best to refer to the manual of the equipment or consult a professional technician to ensure the accuracy and safety of the replacement process.