Installation Instructions
•
Rexnord
®
Omega
®
Metric Couplings
(Page 1 of 4)
Type E and ES
•
Sizes 2M-140M
Rexnord
80152M
5555 S. Moorland Rd., New Berlin, WI 53151-7953
June 2016
Telephone: 262-796-4060 Fax: 262-796-4064 www.rexnord.com
Supersedes 428-313M
1. General Information
1.1. Omega Couplings are designed to provide a mechanical connection between the rotating shafts of mechanical equipment, using
a torsionally soft flexible element to accommodate inherent misalignment while transmitting the power and torque between the
shafts.
1.2. These instructions are intended to help you install and maintain your Omega coupling. Please read these instructions prior to
installing the coupling, and prior to maintenance of the coupling and connected equipment. Keep these instructions near the
coupling installation and available for review by maintenance personnel.
1.3. Rexnord Industries, LLC owns the copyright of this material. These Installation and Maintenance instructions may not be
reproduced in whole or in part for competitive purposes.
1.4. Symbol descriptions:
Danger of injury to persons.
Damages on the machine possible.
Pointing to important items.
2. Safety and Advice Hints
DANGER!
2.1. Safety should be a primary concern in all aspects of coupling installation, operation and maintenance.
2.2. All rotating power transmission products are potentially dangerous and can cause serious injury. They must be guarded in
compliance with OSHA, ANSI, ATEX and any other local standard for the applications they are used. It is the responsibility of the
user to provide proper guarding.
2.3. Failure to secure cap screws properly could cause coupling component(s) to dislodge during operation and result in personal
injury. See Table 3 for proper tightening torques.
2.4. Do not use on turbine drives if the coupling cannot be protected from steam leakage or overspeed situations beyond the
coupling’s published speed rating.
2.5. Before installing this coupling on systems involving sleeve bearings, herringbone gearsets or other axially sensitive devices,
consult Rexnord.
2.6. Elastomeric couplings can hold a static electric charge that may discharge and ignite in an explosive environment. Both shafts of
the connected equipment must have a path to ground.
3. Preventative Maintenance
DANGER!
Do not make contact with the coupling when it is rotating and/or in operation.
3.1. Periodic visual inspection is necessary to evaluate the condition of the flex element. Inspection can be done during the operation
using a strobe light.
3.2. When inspecting the element look for:
• Fatigue cracks at element splits, discoloration and surface cracking in body of element.
ATTENTION! Replace element if necessary.
4. Element Replacement
DANGER!
Stop the motor and lock it out to prevent start-up during installation of coupling.
4.1. Always replace both half elements.
4.2. Install both half elements from the same box.
4.3. Follow installation instructions (see Section 7, Rexnord Omega Coupling Installation).
4.4. Tighten element cap screws to proper torque (see Table 3).
The designation ATEX (Atmosphere Explosibles) has established itself for the new guidelines. ATEX 100a controls all
regulations for the condition of explosion-proof equipment.
Model No. ___________________ Category ____________________ Reference ___________________
Mfg Year ____________________
Max Temperature _____________
