Figure 10: Dial indicator
Angular alignment
Unit is in angular misalignment when the shaft axes are concentric, but not parallel. Shim unit as re-
quired.
1.
Flexible Couplings
The normal gap (distance between coupling halves) is approximately 1/2". However, the coupling
manufacturer's instructions should be followed. Insert a feeler or taper gauge at 90° intervals on
the circumference of the hubs. When the gap is identical within .002", the unit is in angular align-
ment. See Fig. 11.
Figure 11:
2.
Spider-Insert Couplings
The normal gap (distance between hub and insert) is approximately 1/16". However, the coupling
manufacturer's instructions should be followed. Check alignment by using calipers at 90° inter-
vals on the circumference on the outer end of hubs. When caliper measurements are identical,
the unit is in angular alignment. See Fig. 12.
Figure 12:
3.
Flexible Spacer Couplings
2.6 Alignment procedures
16
3107 Installation, Operation and Maintenance Instructions