28-02-2022, 03:22 PM
Mention has been made of Minis. These have either ball a.c. races or taper rollers, both with a precision length spacer between the inner rings. On older vehicles considerable scope for misassembly. Many other taper rollers have no spacer and the nut is just finger tight and retained solely by the split pin. It seems primitive but umpteen millions of vehicles were like that.
Bearing makers do publish specs for radial and axial clearance but as pointed out the tilt is a bit more complex (and much more).
Assessing used bearings is a puzzle for amateurs especially. The tilt is not an accurate indicator, although if a clean bearing with very thin oil has almost none it wont be significantly worn. But it might also not be ideal for the application (ie rear hub)
Bearing makers do publish specs for radial and axial clearance but as pointed out the tilt is a bit more complex (and much more).
Assessing used bearings is a puzzle for amateurs especially. The tilt is not an accurate indicator, although if a clean bearing with very thin oil has almost none it wont be significantly worn. But it might also not be ideal for the application (ie rear hub)