Sorry,gentlemen,i missed all that entirely,and have just stumbled across it,and of course that Photobucket fiasco has obliviated the photos... Judging by Littleknife's decoding,could it have been one of these stamps? (it's a topic dedicated to 1-ГПЗ,which is the stamp and the abbreviation for the First Gov't Ball-bearing Factory) https://rusknife.com/topic/17780-то...венного-подшипникового-завода-1-гпз-г-москва/
Samek might be a great resource but here is a portal for ordering their axes: http://www.tksl.eu/index.php?route=product/category&path=81