GEAR-FLEX COUPLING
RE-OM-G-04/00-05/15
Page 11
4.4 ALIGNMENT PROCEDURE
Alignment procedure is given separately for each type of alignment, for simplicity.
However all 3 types of misalignments may be present at the same time.
For Permissible
INITIAL (INSTALLATION)
misalignments refer table A on page 12
For Permissible
MAXIMUM (OPERATIONAL)
misalignments refer table B on page 13
4.4.1 CHECKING PARALLEL / RADIAL ALIGNMENT
Check the parallel/Radial alignment with the help of straight edge resting squarely on
both the hubs at 4 places 90° apart. The deviation in the readings should not exceed
the permissible initial parallel misalignment mentioned in table A.
(Refer Fig. 3)
4.4.2 CHECKING ANGULAR ALIGNMENT
Check the angular misalignment with the help of slip gauges by inserting in the gap at
4 places 90
°
apart.The difference in max. & min. gap will be the Total Indicated
Reading (TIR).
The angular misalignment ‘X’ in mm is half the Total Indicated
Reading. The values of angular misalignment should not exceed permissible initial
misalignments mentioned in table A. (Refer Fig. 4).
Fig. 3
Fig. 4