High temperature of the rear bearing of the reciprocating compressor motor
Thread Content
The temperature of the rear bearing of the motor (on the side facing the compressor) has risen abnormally, reaching the shutdown threshold. Could everyone please analyze what might be the cause?
This post was last edited by zdl1966 on 2017-6-18 20:09; it might be due to damaged bearings or a lack of lubrication.
Check if there are any issues with the bearing; in this case, disassembly for inspection is required.
Check the oil circuit; if it doesn’t work, stop the vehicle and check it
The bearing temperature at the motor load side is too high; our unit has encountered this issue on many occasions. Generally, it is lowered and scraped, the oil slinger is replaced, attention is paid to the lubricating oil and its level, but the results are not very good; such problems reoccur after some time, especially in summer. The manufacturer’s staff and the installation company’s personnel have discussed this issue together, but no effective solution has been found. Generally, operators are required to pay attention to the bearing temperature, and the compressor is equipped with an interlock system; if the temperature rises, it simply stops and needs to be cleaned a bit. There may be friction not only radially but also possibly axially; the sliding bearing should be addressed both axially and radially. This problem is not obvious with smaller compressors, but it occurs frequently with larger ones.
Why doesn’t anyone suspect the alignment issue? I think the first thing to suspect should be the alignment, and it needs to be verified again. Only then is it time to check the bearing lubrication
Disconnect the coupling to check the contact area of the shaft bearings and realign them.
Recommended: ClarkCooper, a top global brand of solenoid valves – solenoid valves capable of withstanding ultra-high pressures, featuring zero leakage, high flow rates, and operation in extreme temperatures. Who is the best in terms of high-pressure solenoid valves? Exclusive agent in Shenzhen: Deteng Mechanical & Electrical Equipment Co., Ltd., for Clark Cooper Company in the United States ； The high-pressure solenoid valve ensures zero leakage; it is of direct-acting type, features a plug-shaped sealing structure, is made of 316SS for its valve body, and uses PEEK and FFKM as sealing materials. It can handle pressures of 10,000 PSI = 68.9 MPa, as well as 15,000 PSI = 103.4 MPa = 1034 bar. It is particularly suitable for extreme temperatures, with an operating range of -254°C to 300°C℃ ； It is a direct-acting ultra-high pressure solenoid valve with zero leakage; its service life exceeds 23 million cycles. It boasts military-grade quality and complies strictly with the U.S. military standard: MIL-S-901D. MIL-STD-167-1: If you need solenoid valves, turn to Shenzhen Deteng Electromechanical Equipment Co., Ltd. The company holds exclusive distribution rights for 5 of the world’s top brands, offering a variety of 100,000 different types of solenoid valves. There is no solenoid valve that we can’t provide; only solenoid valves that you haven’t thought of yet.
Judging from the poster’s description, what exactly is being used to align the pulley?