Need information regarding the data included in example for Inner race bearing faults

[Faris_Elasha]

Hi

There are number of examples for fault detection in bearing ( Vibration Tool Kits). I need more information regarding these data which include:

- What is bearing specification

- how the data Acqusition performed

- any link for the tutorial

[ShalimarA · Accepted solution]

I've come across this Manual that demonstrates how to use the OAT Envelope Detection VI to perform fault detection on bearings. 

http://zone.ni.com/reference/en-XX/help/372416A-01/svtconcepts/cst_speed_brg/

It lists the bearing specifications:

• Diameter 0.2813inch
• Pitch Diameter: 1.1228inch
• Speed: 1,234 RPM

It also goes on to list the characteristic frequencies determined by these attributes.

The data acquisition is being performed by use of an accelerometer and tachometer. These devices measure the vibration data and rotational speed of the bearing. The fault detection uses a method called Envelope Detection to look at the signals from the bearing and compares them to signals from standard bearings to discover faults. You can read more about the data acquisition method here:

http://zone.ni.com/reference/en-XX/help/372416A-01/svtconcepts/fault_detection/#Envelope_Detection

The first link is a tutorial on fault detection in bearings. The end of the link provides the location of an example VI that you may also find useful. 

[Faris_Elasha]

Thank You Ali and Sorry for late reply

[ShalimarA]

No problem, glad it was helpful!