Mechanical
Field Bearing Replacement
Field Bearing Replacement
Often removing a motor to send out to have bearings replaced takes several hours of disconnect and reconnect. American MTS has the expertise to complete this work onsite reducing scheduled or unplanned down time. This is particularly true when the failed bearing is on the opposite drive end of a motor.
Proper installation and lubrication of a radial ball or roller bearing properly is critical to achieve the full service life of the component. Improper mounting methods that take advantage of shortcuts, such as using a hammer or a torch, will result in premature failure or a potential safety hazard. Pullers and presses designed for that purpose are the best options for three reasons: safety, saving time and minimizing the damage to the shaft and housing during the process. Two- and three-jaw mechanical pullers pull evenly on the outer ring as the threaded post is tightened, which is centered on the end of the shaft.
The shaft and housing will be precision measured to determine if machine work is needed. Our in house machining capabilities allow us to quickly complete this work if needed. Finally, the bearings are lubricated and the motor reassembled.
It is not recommended to reuse a bearing that has been removed from service, but it is recommended that the bearing be examined after removal for cause of failure. American MTS has the expertise and equipment to cut the bearing and determine the root cause of failure.
Supplemental Labor for Outrage and Projects
Supplemental Labor for Outrage and Projects
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Equipment Installation
Equipment Installation
Precision installation requires some additional effort but the benefit to you is large. American MTS provides you with the assistance or training needed to ensure proper practices are followed. We can take full responsibility for a proper uninstall and reinstall, just the precision install or laser alignment only. We are here to work with you and assist as you need.
Critical factors during installation include:
Lead Testing
The initial cause of the motor failure may have been the leads shorting to each other or to the junction box. It's also possible the leads were damaged during removal. It's critical to fully inspect the leads before reconnecting.
Connections
Another important installation consideration are the connections. Loose connections can lead to high current flow, heat and eventually failure of the lead or the complete winding.
Shaft Alignment
Improper shaft alignment can lead to accelerated wear on shafts, couplings and bearings. The misalignment also wastes energy as additional torque is required to overcome this condition.
Mounting Bolts
The mounting torque is another very important part of a precision installation. Too loose can result in soft foot. Too tight may crack the feet. Either case will cause high vibration and premature bearing failure.
Onsite Pump Services
Onsite Pump Services
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