What should be paid attention to when installing paired angular contact ball bearings? Sanli summarizes the following steps for everyone: Step 1: Ensure the natural environment of the installation, clean the shaft, bearing housing and other components; Step 2: Accurately measure the specifications, concentricity, vertical angle of the shaft ring, etc. of the shaft and bearing housing; Step 3: Open the outer package of the bearing, wipe off the anti-rust oil on the surface of the inner and outer rings, and conduct a visual inspection of the bearing; Step 4: Determine the installation position of the bearing, and the standard step must be installed back to back; Step 5: Use an electric heater To heat the bearings, ensure that the inner ring of the temperature measuring probe and the matching single-row angular contact ball bearings should be heated together; under normal circumstances, the bearing temperature is 70°C higher than the shaft, and the maximum bearing temperature should not exceed 120°C. (Bearing must be demagnetized) Step 6: Install angular contact ball bearings, matching single-row angular contact should be installed together; Step 7: Use a wrench and lock nut to manually lock the bearing to the appropriate position to ensure that the inner hole is tightened On the shoulder of the shaft, the inner bores of the two matching angular contact ball bearings are close to each other; (no lock washers are added at this time) Step 8: Wait for the bearing to cool to room temperature; Step 9: Remove the lock nut , install the lock washer, and then install the nut. If conditions permit, you can apply a layer of slick oil on the rounded corner of the lock nut; Step 10: Install the lock nut to the appropriate position with a wrench, and manually On the premise of not moving, you can use the hammer to lock another 1/8 - 1/4 turn to clear the gap generated during the refrigeration process; Step 11: Find the lock washer foot closest to the lock nut groove, such as If the two ends are not aligned, do not loosen the lock nut to align the two ends with the locking groove, you can re-tighten the lock nut to align with the two ends of the nearest sealing ring foot, and then bend the sealing ring foot to the groove body; Twelfth Step 1: After the installation is complete, turn the bearing manually to check whether there is any malfunction, excessive torque, unstable torque, etc. Step 13: If the next step is not carried out immediately, the parts need to be covered and protected to prevent debris from entering. Step 14: For bearings placed back to back, the outer fixing can be fixed relatively loosely in the bearing seat, and it is best to leave a radial backlash of 0.00~0.05mm. Only when the torque is accurate can the rotation be stable! (http://)
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