Dear Experts,
this is one case the timing gear has damage then i try to figure out the root cause.
attached is the damage gear with some pitting in teeth surface.
Please advice some possible cause...
Many thanks
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Dear DOMINICH.VO ,
it might be damaged due to operated under Misalignment or from assembly errors .If you have any Vibration spectrum , we can get more details for root cause failure findings .
Dear Mr. Kishore Kumar,
Please have a look in spectrum. Some information that this pump is running with low viscosity compared with the specification. Does is effect to rotor and gear condition.
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Dear DOMINICH.VO ,
increased noise floor with gear impact indication , are you maintaining and changing its lubrication as per the manufacturer recommendations and grade .
Do you mean viscosity of pumping fluid , low viscosity might have some effect but i don't think so it is the main cause .For better understanding on this you can refer the manual and contact the support service .
https://www.machinerylubricati...ad/150/gear-failures
https://www.rexnord.com/conten...ments/108-010_manual
Here are a couple of links showing different failure modes
Your images show the gear was loose on the shaft, lubrication is in question, gear material may not have been hardened to proper levels
Dave
Thanks Dave for material.
the lubrication is just follow the manufacturer and no any abnormal. The spec for oil is VG100, The oil was maintaining and changing as manufacturer then i have no doubt in oil issue.
As see the defect mark, look like a very excessive load effect on gear and broken the teeth surface, the spectrum also shows high GMF relate to gear wear , also indicates very high load.
then the next question is why the high load on the gear , i keep going my investigation on this way/...
Thanks