Strange gear tooth pattern
Strange gear tooth pattern
(OP)
Hello Guys,
in attachments you found some photo about strange gearbox tooth pattern found. Before the inspection i made some vibration measurement on it discovered this:4
-1XM in axial 13,5 mm/s
-2XM in radial 16 mm/s
-1XGMF 2mm/s
THis machine is forming roll in a papaer machine (MOTOR-PENDULUM GEAR-CILYNDER) normally working one side of teeth.
All of your consideration about tooth pattern will be helpfull.
Regards
in attachments you found some photo about strange gearbox tooth pattern found. Before the inspection i made some vibration measurement on it discovered this:4
-1XM in axial 13,5 mm/s
-2XM in radial 16 mm/s
-1XGMF 2mm/s
THis machine is forming roll in a papaer machine (MOTOR-PENDULUM GEAR-CILYNDER) normally working one side of teeth.
All of your consideration about tooth pattern will be helpfull.
Regards
RE: Strange gear tooth pattern
Instead of being forced into mesh, an alternate is contamination is filling the normal gaps and causing displacement that looks much like it. Checking the oil for powdered metal fragments would tell that.
On the other hand, they look well aligned; have they been running for a long time? It's possible that they were run without enough lubrication some time in the past even if there is enough now.
RE: Strange gear tooth pattern
ask for the gear charts when manufacture. other could be cased by misalignment in the gear box.
RE: Strange gear tooth pattern
Walt
RE: Strange gear tooth pattern
The contact pattern at the end of the gear flanks above and below the pitch diameter in picture 4 shows a hollow profile condition. A manufacturing issue with the gear teeth.
RE: Strange gear tooth pattern
@Strong
Really the gear resonance could create these effect? It is a real case you follow up by yourself?
RE: Strange gear tooth pattern
TTFN (ta ta for now)
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