hubcentric rings

[markus]

i ordered some hubcentric rings today at work. they wre supposed to be 74mm outside diameter and theyre not. Theyre 73.8mm OD and the inner diameter is 72.56. I know it isnt the exact size i need but will this make much of a difference?

[Blitzkrieg Bob]

close enough

[BMWDriver]

In the field of high-end aeronautics, this could be a problem.

0.2 mm is so small, it's close enough to a hair thread.

[AutoXr]

74mm could be the bore they are meant to fit into, therefore a .2 mm clearance is built into them. (You can't go size on size. ) Sometime things are named for what they are used for, not what they actually are....if you know what I mean.