Interpreting Part Measurements that Deal with ISO

[BRusnak]

Hello,

I am a co-op working on a parts audit. I was looking at measurements for some bearings and noticed that both tolerance values were negative. I don't know how to interpret this so that my report is accurate. Here is an example: nominal = 10.2362 tolerances = -0.0004, -0.0009
Any insight will be greatly appreciated. Thanks for the help!

 

[CoryPad]

The allowable limits are 10.2353 and 10.2358. The nominal value represents the line to line contact between the bearing and mating part, while deviations from nominal show the amount of clearance or interference that may be present in the assembly.

 

[BRusnak]

Thanks for the help!