120° is the best way to measure deviations, checking at every 90° with symmetrical, equally sized rotating parts is simply remeasuring at two points (0/360° - 180° and 90°-270°) if it deviates +0.010 at 270° it will basically be out -0.010 at 90°. @ 120°, 240°, and 0/360° when alignment deviates +0.010 @ 0/360°, it will be out - 0.005 @ 120°, and -0.005 @ 240° if horizontal elevation alignment in either shaft is off and lateral alignment is < 0.001 If @120° the deviation is -/+ 0.005 rotate the coupled shafts 90° and repeat if measurements are the same, align the misaligned machine, if they are different, address the off center rotation or bend in the relevant shaft.
120° is the best way to measure deviations, checking at every 90° with symmetrical, equally sized rotating parts is simply remeasuring at two points (0/360° - 180° and 90°-270°) if it deviates +0.010 at 270° it will basically be out -0.010 at 90°. @ 120°, 240°, and 0/360° when alignment deviates +0.010 @ 0/360°, it will be out - 0.005 @ 120°, and -0.005 @ 240° if horizontal elevation alignment in either shaft is off and lateral alignment is < 0.001
If @120° the deviation is -/+ 0.005 rotate the coupled shafts 90° and repeat if measurements are the same, align the misaligned machine, if they are different, address the off center rotation or bend in the relevant shaft.
Do you make these coupling for cars, like bmw ?
Dropit no