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Brian · 07-21-2019, 10:03 PM

FB 14 is Johnson Bronze bearing classification for flanged floaters
The X30 denotes .030"

FB 10 possibly denotes .010 u/s
Have you a micrometer? Knowing that the X30 denotes .030", measure thickness of bearing and compare with the others. A .010 bearing will measure .010" THINNER than the X30

48-6211-X are .002

Depending on how your crank measures up- currently you say it is .003 , you may well get by using the 48-6211-X's. Ford made them that particular size to run in applications such as yours; a bit of a polish of the throws and use 2 thou bearings on it. There's your 'minimal machining'!

07-21-2019, 10:03 PM	#2
Brian Senior Member Join Date: May 2010 Location: Masterton, New Zealand Posts: 3,829	Re: 32/36 Rod Bearing sizing. FB 14 is Johnson Bronze bearing classification for flanged floaters The X30 denotes .030" FB 10 possibly denotes .010 u/s Have you a micrometer? Knowing that the X30 denotes .030", measure thickness of bearing and compare with the others. A .010 bearing will measure .010" THINNER than the X30 48-6211-X are .002 Depending on how your crank measures up- currently you say it is .003 , you may well get by using the 48-6211-X's. Ford made them that particular size to run in applications such as yours; a bit of a polish of the throws and use 2 thou bearings on it. There's your 'minimal machining'! __________________ Unfortunately, two half wits don't make a whole wit! Last edited by Brian; 07-21-2019 at 10:19 PM.