It is not the gear reducer. The big turntable is apart. It is just the gap between the bearings. Ask an expert to answer set high performance
It is better to remove the bearings and see if the raceway has been worn off. Don't know what you said is on the momentum space inside and outside the ring spacing or bearing axial, if the latter, the contact point of the drive in ball raceway is not normal to abnormal sound in rolling sliding, no peeling case can be replaced with large diameter steel ball to adjust.
The steel ball bearing sleeve in the slewing bearing is damaged or damaged!
It is with a few years of car, and see you in the rotary table tooth teeth, if the year is relatively new, estimation of slewing part is unlikely, unless the accident occurred, if the noise inside the tooth that do rotation squeak squeak, is willing to be short of oil, if oil guaranteed, see is not the gnashing of teeth.. The outer teeth are usually only the teeth.. The failure rate of slewing support is still relatively small
