After a certain lifespan, cam cutters may experience wear on some components, much like how people fall ill as they age. If the roller needle bearing of a cam cutter is damaged, the following steps can be taken for handling the issue:
Loosen the output sleeve and remove the output shaft. Do not loosen the rear cover after it's removed, ensuring the shaft's axial position remains unchanged when reassembled.
   2. Replace the damaged needle roller bearings and ensure the use of qualified needle roller bearings.
   To remove the output shaft, loosen the locknut at the rear end and the output sleeve at the front. The shaft and sleeve can then be pulled out together. Upon reinstallation, simply tighten the locknut to restore the output shaft to its original position.

Above is a simple introduction on what to do when the roller needle bearing of a cam divider is damaged. For more details, please consult the technical staff at Kunshan Dongzhihao.