RATHI DISC-O-FLEX RLM, Installation & Operating Manual

Page: 6 / 16

Installation & Operating Manual /DISC-O-FLEX/RLM,RLMK
RATHI TRANSPOWER PVT.LTD. Gaia Apex,S No 33/2D,Viman Nagar
R-II-D-03/02-09/20
Pune, 411014
Page 5
of 15
GO TO INDEX
3.3 Shaft Alignment

In order to achieve optimum service life of the coupling, shafts must be aligned.

Initial misalignment should not be more than 25 % of maximum misalignment
(Refer Table 3).
Table 2 : Method of misalignment
Method Parallel/Radial Angular
1
Using dial gauge Using dial gauge

Clamp dial gauge on driven hub

Note the reading at each quarter rotation of hub by rotating one end.

P or X is half the Total Indicated Reading (TIR) shown on dial gauge
2
Using straight edge Using verinier calliper

If the field constraints do not permit to use dial gauge then alternatively use
straight edge & vernier calliper to measure parallel and angular alignment
respectively.