Cracks in the bolt holes for securing the shaft bearings of nitrogen-hydrogen compressors: handling experience
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During maintenance, cracks were found in the holes of the bolts used to secure the shaft bearings of the nitrogen-hydrogen compressor. Regarding the repair process, I would appreciate it if experts could share their experience
“Cracks appear in the holes of the bearing shell fastening bolts”~~~~~ Bearing shell? Is it a crankshaft bearing (bearing shell) or a connecting rod big end bearing? What material is the base? Crack shape? ~~~If I say nothing, you won’t be able to guess, right!
The bearing shell screws have requirements regarding their strength and torque; the amount of stretch must be measured each time they are removed or installed, and if it exceeds the specified limits, they need to be replaced – not waited until they break. Color flaw detection should also be carried out regularly