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using .2 and .3 probes for the first time

Hey Guys im having a lot of trouble trying to measure with .2mm and .3mm probes. Iv turned down the touch speed to 2 im not scanning. im only measuring small circles with 5 to 8 hits. It seems like I have to recalibrate them 1 to 2 times a day.
I have a large cylinder with flat bottom holes in its OD wall. In the holes are ball bearing that are pressed it. I only have a small amount of land available to measure the hole. I can measure 1 to 3 parts then I will start to have alarms saying the probe became unseated or that it couldn't retract. Usually once I calibrate it will work ok. Sometimes Ill have to recalibrate with the master probe. As you can imagine this is eating up a lot of time. If anyone has any advice I would appreciate it.
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  • Maybe I'm misinterpreting?
    You've got a bearing pressed into a cylindrical bore, of a larger component, correct?
    You are trying to assess the diameter of the cylindrical bore, in which the bearing is pressed in, correct?
    The bearing has an inner and outer race, correct?
    The planar "side" of the of the bearing has a flat surface on edges of inner and outer races, correct?
    The "Race Plane" I'm stating, is that exposed side edge of the bearing's outer race.