High-voltage motor sliding bearings, non-forced lubrication, oil change interval?
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This device is equipped with a high-voltage motor that rotates at 372 revolutions per minute to drive the reciprocating machine. The motor’s bearings are sliding bearings, and they are lubricated using a non-forced lubrication system. May I ask the experts: what is the recommended interval for changing the oil in these bearings, and what are the relevant standards? Thank you.
Generally, this type of bearing is lubricated using an oil ring for oil slinging. I haven’t seen any specific replacement schedule; we determine when to change the oil based on changes in its quality.
The replacement of lubricating oil is based, firstly, on the operating time – it is replaced at the end of a specified operating cycle – and secondly, on an analysis of the oil quality; if the analysis shows that the oil is not up to standard, it must be replaced!
Based on the operating conditions of the lubricating oil in the compressor itself, the replacement cycle is every three years; however, this is a mandatory replacement process that involves the use of a lubricating oil pump. If it is an electric motor, can we apply the lubrication standards for pumps? The lubricant for the pump should be replaced every six months.
Based on the operating conditions of the lubricating oil in the compressor itself, the replacement cycle is every three years; however, this is a mandatory replacement process that involves the use of a lubricating oil pump. If it is an electric motor, can we apply the lubrication standards for pumps? The lubricant for the pump should be replaced every six months.
Given the low rotation speed, it is recommended to test the quality of the lubricating oil once a month; if it does not meet the standards, it should be replaced. During routine inspections, attention should be paid to any changes in the oil’s quality, with color and viscosity being particularly important. Since lubrication is not mandatory, there is less oil in the bearing housing, and if possible, the oil should be changed every three months