Take these numbers given as examples with a grain of salt. The come from different measuring devices with probably questionable calibration (no offense intended). You need a proper size micrometer (not caliper) that discerns down to 0.0001" to accurately determine if your crank is in spec. A bore mic or bore gage would be used on the damper. Might be able to get away with snap gages, if you know how to use them.