GEAR-FLEX COUPLING
RE-OM-G-04/00-05/15
Page 9
4. INSTALLATION INSTRUCTIONS
4.1 BEFORE INSTALLATION
•
Remove the coupling from packing & thoroughly inspect for signs of
damage.
•
Disassemble the coupling by removing nuts & bolts. Clean all the
parts carefully.
•
Remove protective coatings / lubricants from bores & keyways.
•
If received in damaged condition, coupling should not be installed.
4.2 FINISH BORE & KEYWAY PROCEDURE
Danger!
Coupling supplied with CE mark- it is responsibility and liability of the customer
for marking correct F/B, K/W as specified by!
The maximum finish bore value (See Page No.-5 & 6 technical data) must not be
exceeded. In the event of failure to keep to these values, the hub may break and
the particles dispersed by the rotation may cause serious danger.
1. Rathi couplings are supplied with pilot bore unless ordered for finish bore. They
should be bored to required finish bore sizes with reference of the outside
diameter (OD) of hub (Refer fig. A)
2. Clamp the hub puller hole side dia. on lathe and true the hub O.D. Maintain
concentricity of finish bore w.r.t. coupling OD and face run-out within 0.04 mm for
dia. 10-180, 0.06 mm for dia. 180-400 & 0.08 mm for dia. 400-630.
3. Unless otherwise specified, std. tolerance of H7 for Finish bore and for keyway
width will be supplied as per DIN 6885/1.
4. Use dial bore gauge or plug gauge for respective bore size. (If plug gauge is used
then ensure that Go end of gauge will pass straight way through out bore length.)
5. Make chamfer of required size on both the sides of bore.
.
FIG. A