low speed bearing condition monitoring

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Posted ByMatej on October 13, 2005 at 07:09:37:

Hello all,

I'm new in the field of condition monitoring and vibration analysis. My main goal is to develop a system which will detect bearing faults in very early stages. I read a lot of articles about bearing condition monitoring and vibrodiagnostic, but I didn’t find a solution jet. The reason why I didn’t find it jet is in the specific characteristics of bearing witch I have to diagnose.

Namely, I would like to diagnose an axial slewing ball bearing with extremely low rotational speed (1RPM to 10RPM). The bearing is not standard, it has external gear and is quite big (pitch diameter = 650mm, number of balls = 80).

So my question is: what type of transducer (displacement, velocity, accelerometer, ultrasound,…) should I use for my application? ….I think that the main problem for this decision is hiding in the low rotational speed of bearing (because of the very low frequencies, bearing tones, which are present in the signal).

I would be most grateful if whoever could point me in the right direction.

Thank you in advance for any advice.

Matej

Follow Ups

Re: low speed bearing condition monitoring Duncan Carter 13:24:06 10/17/2005 (0)
Re: low speed bearing condition monitoring Matej Zvokelj 03:25:11 10/17/2005 (1)
Re: low speed bearing condition monitoring Duncan Carter 10:20:45 10/14/2005 (2)

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Comments:: Hello all, : I'm new in the field of condition monitoring and vibration analysis. My main goal is to develop a system which will detect bearing faults in very early stages. I read a lot of articles about bearing condition monitoring and vibrodiagnostic, but I didn’t find a solution jet. The reason why I didn’t find it jet is in the specific characteristics of bearing witch I have to diagnose. : Namely, I would like to diagnose an axial slewing ball bearing with extremely low rotational speed (1RPM to 10RPM). The bearing is not standard, it has external gear and is quite big (pitch diameter = 650mm, number of balls = 80). : So my question is: what type of transducer (displacement, velocity, accelerometer, ultrasound,…) should I use for my application? ….I think that the main problem for this decision is hiding in the low rotational speed of bearing (because of the very low frequencies, bearing tones, which are present in the signal). : I would be most grateful if whoever could point me in the right direction. : Thank you in advance for any advice. : Matej

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