Torquing a castlenut

[fredintoon]

LOL... I actually had to look it up! Google is a wonderful thing!

Hi 'Bug,
I tried that and I got "Royal Canadian Hussars" from one site and "a small but undetermined unit of measurement (see also BCH)" from another.
Well, I've always used plain ol' CH for the measurement thing so yeah, I know what those initials stand for but R (or even B) in that context? I dunno, please enlighten me.

[CatatonicBug]

Hi 'Bug,
I tried that and I got "Royal Canadian Hussars" from one site and "a small but undetermined unit of measurement (see also BCH)" from another.
Well, I've always used plain ol' CH for the measurement thing so yeah, I know what those initials stand for but R (or even B) in that context? I dunno, please enlighten me.

Here ya go.

[egleaves]

Until now, I was not aware of the "R" sub-set of the CH unit of measurement. You learn something new everyday, I guess. Thanks guys!

[fredintoon]

Here ya go.

Hi 'Bug,
OK, gotcha, it's the CH's colour that gives the term a dimensional difference.
FYI. a BCH = ~0.0035" while an RCH = ~0.005".
Thus while a BCH of shake in your bearings may allow you a few thousand miles before a major rebuild, an RCH of shake means go shop for bearing shells right now.

[wa407mpp]

shim it!

If the hole doesn't line up at the proper torque, remove the nut and add a washer of the right thickness to line up the hole when it is torqued.

[Pat Kelly]

Or use a bent cotter pin