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floating fastener option for concentric mates, and redundant mates

Question asked by Brett Bell on Mar 15, 2016
Latest reply on Jul 28, 2016 by Joshua Gratz

I am confused as to what exactly the floating fastener option in Tolanalyst does relative to concentric mates. It specifies fasteners and pins, so does that mean that it is restricted to toolbox parts?

What I have is a rotating subassembly attached to a motor output shaft. What I would like to measure is the maximum runout of this subassembly relative to the housing. My question, is whether the orientation tolerance is sufficient, or whether I should also check float fasteners?

 

Second question relates to redundant mates. I have a shaft supported with two radial bearings. For some reason, I am unable to constrain both bearings to the rotating shaft and the housing. Tolanalyst only allows me to constrain one bearing, not both. What am I missing here?

 

Note: in image - blue = bearings, red = housing, black = rotating shaft

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