Hello,

 

Does anyone has the bearing defect frequencies for a UC206 bearing please?

This self aligning bearing mounts into a P206 pillow block.

Thank you.

Original Post

Will need machine speed and bearing size to accurately calculate bearing frequencies. Quite a few of the bearing OEMs have bearing frequency calculators on their respective websites. CTC vibration equipment company also has a multiple frequency calculators on their site.

Last edited by rgf12

Sorry for my slip... forgot to add that shaft diameter d is 30mm. I will check. The OEM site I visited requested details for calculation which I could not provide but I will give a try to others. I'll start by CTC. 

Thank you for your reply.

 

The attached is courtesy of Timken's website.  Page 3 is a drawing that seems to be to scale, as are many in these days of AutoCad.  You can scale off most of what you need except for the number of rolling elements which you can get off the bearing you are working on or perhaps a spare in some warehouse.

Attachments

Iphone called 'Vibra Calc'

It appears that this program does not have a database of bearings that includes the UC206 bearing requested by the OP. If I am wrong please correct me on that. There are a lot of programs and free equations to calculate bearing frequencies, but the issue here is getting the detailed bearing geometry for a specific bearing!

Walt

Bearing manufacturers tend to use very similar dimensions across a wide range of product lines.  Just looking at several 6206 bearings which have an inside diameter of 30 mm and an outside diameter of 62 mm I find the pitch diameter of 45.999 mm, the rolling element diameter of 9.525 mm and 9 elements.  No guarantees, but I'd bet that the UC206 is physically identical to a 6206 as far as the anticipated frequencies.  The units are the same as the input speed so in RPM/CPM.

6206 1000 RPM

Attachments

Images (1)
Last edited by John from PA
Walt Strong posted:

Iphone called 'Vibra Calc'

It appears that this program does not have a database of bearings that includes the UC206 bearing requested by the OP. If I am wrong please correct me on that. There are a lot of programs and free equations to calculate bearing frequencies, but the issue here is getting the detailed bearing geometry for a specific bearing!

Walt

Walt, I think that you can input dimensions as well as the library of sizes.

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