Answer / @lbert

From Bearing Number, one can find only I.D. and Bearing type. Rest all are standardized with no proper links.

Answer / pavan

8*5 =40 gives you the ID of the straight bore bearing, or
simply you can say shaft diameter.

In case of taper bore the sleeve thickness has to be added

Answer / surendra shahare

6208=8*5=30

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why stress decrease from upper yield point to lower yield point?

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