[How-To] Ball bearing sizing

DavidR8

DavidR8

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On my 1974 Honda CB360T there’s a ball bearing that actuates the clutch.
The manual lists is as a #10 and not a dimension like 5/16”.
I can’t seem to find any size reference that lists numbered sizes.
Has anyone heard of numbered bearing size before?
 
Is this a single ball or a single row ball bearing?

Metric bearings exist that use a 3 digit system (i.e.-603= 3x9x3mm)

Also an imperial counterpart may have an R as the first digit (i.e.-R-16 , 1”x2”x3/8”)
 
This is a real stretch but you don’t think it could be a number size as in drill number size, do you? Would be just a bit over 3/16” . Seems very odd to do that though.
 
Ulma Doctor said:
Is this a single ball or a single row ball bearing?

Metric bearings exist that use a 3 digit system (i.e.-603= 3x9x3mm)

Also an imperial counterpart may have an R as the first digit (i.e.-R-16 , 1”x2”x3/8”)
Click to expand...

It’s a single bearing that bears on the end of a pushrod.
 
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