Bearing End Float

[<horr@bellsouth.net>]

I am in the process of replacing my front rotors.  To remove the rotor I had to 
remove the hub.  I checked my Bentley's manual for specifications for 
reinstalling the bearings.  The book gives a specification for bearing end 
float to be between 0.003" and 0.005".  How does one measure that?

Any help would be appreciated,
   Howard Orr
   1969 TR6