Reasons for overheating of reciprocating compressor bearing shells
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1. The fit between the bearing shell and the shaft journal is uneven, resulting in binding or a small gap. Check the bearing shell clearance. 2. If the bearing is skewed or the shaft is bent, the fit clearance should be adjusted accordingly. 3. Insufficient lubricant supply. 4. The oil quality is too poor. Other impurities may enter the bearing.
The oil quality does not meet the requirements, preventing the formation of a complete oil film. The compressor load is too high.
1. The clearance of the bearing shells has increased, and the condition of the oil film is not good. 2. The lubricating oil contains impurities.
The bearing shell bolts are not tightened evenly, the clearance is too small, and the oil quality is poor