Grundfos Peerless Pump 8196 Series, Installation, Operation And Maintenance Manual

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INSTALLATION REXNORD REX OMEGA SPACER TYPE COUPLINGS
WARNING
•
Because of the possible danger to person(s) or property from accidents
which may result from improper use or Installation of products,
it
s extremely important to follow the proper installation and operational procedures
•
All rotational power transmission products are potentially dangerous and can cause serious injury. They must be properly
guarded
and in compliance with OSHA standards for the speeds and applications in which they are used. It is the responsibility of the user
to provide proper guarding.
•
Failure to secure cap screws property could cause coupling component(s) to become dislodged during operation; resulting in
personal
injury.
Do
not start motor or job without the
complete
coupling being
properly secured
to driving and driven
equipment shafts.
•
Before installing this coupling on any system containing sleeve bearings, herringbone gear sets or other devices sensitive to axial thrust,
consult Rexnord.
•
It is the responsibility of the user to consider the coupling’s stiffness (available from Rexnord) as it relates to the drive system
frequency.
STEP 1: Inspect both driving and driven shafts and hub bores making sure they are free from dirt and burrs. Be sure the keys fit shafts properly. Mount both hubs
to the shafts securing only one hub; the other hub should be loose for minor adjustment of spacing. Where tapered bushings are used, follow bushing manufacturer's
instructions.
If hub is bored for an interference fit, we recommend heating the hub ~ water, oil bath" or an oven and quickly positioning it on the shaft. Do not spot
heat hub as it may cause distortion.
STEP 2: Place half of the elastomer element around hubs and secure with self-locking capscrews. The elastomer element will space the other hub. It is important to
have cap screws properly tightened. See Table 1 below for recommended capscrew torques and instructions. Now secure the other hub to the shaft.
STEP 3: Mount other half of the elastomer element to hubs. Be sure to secure rings to the spacer element if provided. Tighten all cepscrews to the
recommended cap screw torques in Table 1 and your done! .
HELPFUL HINT: ]f the cap screw holes in the element do not line up properly with the hubs due to equipment misalignment, rotate the shafts (if possible)
slightly as you install each cap screw. On larger coupling sizes, first install the cap screws that are located in the center of the half element.
ALLOWABLE SHAFT ENGAGEMENTS
Shafts can be flush with the hub (not shown), recessed below the face of the hub, or extended beyond the hub face.
Dimension Y should be equal to, or
greater than •. 8 times dimension X.
The shaft may extend beyond the htA>. as long as
there is sufficient keyway length available.
TABLE 1
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