Slewing Bearing Protection Line And Maintenance System

1. Excavation of the rotary bearing of the rig There are intermittent pieces of sound - like crushed crushed stone, harsh metal crushed sound, the fault tells you that the slewing bearing has been worn seriously.

2. Excavation of the rotary bearing of the upper and lower collar gap is obviously open, Slewing Bearing you can simply measure the four points of the rotary bearing, outside the ring gear, or the ring gear as a benchmark to determine the gap between the inner and outer ring, Slewing Bearing if more than 2 mm below, Can still adhere to February, more than 3 mm above the bearing facing the brink of collapse.

3. Rotary bearing sealing system and lubrication system is the protection of rotary bearings and maintenance systems, 85% of the users did not do this, all the reasons is that the operator, especially the driver of their own way, resulting in rotary bearing dry consumption. The following picture, Slewing Bearing the seal has been unable to see, the lubrication is injected after the loss, has been unable to return to heaven.

4. Excavation of drilling machine rotary bearing failure can also be seen in the work of the time, jitter, vibration or forward and backward, rotary bearing deformation reached a serious level.

5. digging drilling machine rotary bearing turntable bearings and slewing bearings directly stuck, Slewing Bearing is more users finally had to stop the final results, and even the user directly forced to pull the rotary bearing rotation, the results of the tragedy occurred.


1. In the rotation of the bearing when the sound is unknown, Slewing Bearing not quickly filling grease, but the addition of kerosene, directly from the bearing gap, the seal pulled out, directly around the filling, and positive and negative rotation, cleaning, as far as possible The cleaning. At this time the internal groove of the slewing bearing, the ball, the ball will get a slight clean. Wash off the debris of the slewing bearing, more than anything else.

2. After cleaning the bearings, filling the oil,Slewing Bearing  the concentration, that is, the viscosity is slightly higher, this time, the seal has been lost, sticky little better, high adhesion rate.

3. Strengthen the temporary protection, to prevent dust, dust, debris into the bearing channel, to ensure that within 2-3 can be reluctant to use.

4. Temporary roller, roller, fast isolation, Slewing Bearing cage, is basically self-deception, frequent accidents. The reason is that slewing bearings are precision parts, precision, installation are carried out in the factory, not a professional manufacturer simply impossible.

General small and medium-sized motor running a little longer, bearing and end bearing between the bearing room often change, can make the bearing jacket with the motor running and rotating, which is often encountered by motor users "bearing running" problem The The greater the roughness of the end cap bearing chamber diameter, the more obvious the knife blade knife, after several disassembly, bearing operation heat expansion, Slewing Bearing squeeze bearing treasure, bearing running often by radial tension or vibration after the processing of the knife marks The peak will continue to become smaller, the bearing chamber diameter gradually increased bearing bearing and end cap bearing room with the gap increases. Bearing room diameter tolerance of the old product is generally equivalent to J7, the new series such as Y2 motor for the H6, is to consider the bearing operation will heat expansion, etc., Slewing Bearing the end cap bearing tolerance is positive, the difference is zero. In case of the end cap bearing room size is poor, the bearing is inferior, coupled with the bearing surface roughness of the larger, bearing by the radial tension and other adverse conditions, Slewing Bearing bearing room and bearing with the gap is easy to occur Ambassador coat jacket in the operation of the jacket rotation occurred in the phenomenon, affecting the normal use of the motor.