What causes many bubbles in the oil return line of the motor’s front bearing?
Thread Content
This unit uses a motor to drive the screw compressor. It has been in operation for only a short time, and recently it was noticed that there are many bubbles in the oil return line window of the front bearing housing; the windows of the other oil lines are normal. Experts, what could be the cause of this? Thank you! ! !
Are you referring to the front bearing of the motor itself? I’ve never seen a motor like this before; it has its own oil return pipeline. Is it possible that the bearings are lubricated with engine oil rather than ordinary grease?
This is the motor of the screw compressor unit; it is the return oil pipeline that comes from the shaft bearing at the front end of the motor. The lubricating oil is pumped in by the oil pump and then returns to the oil tank.