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Motor Type:
8720SM-011-S1-DB
Manufacturer:
Allen Bradley
Exchange: Please Call
New: Please Call
Endeavor Technologies has a unique solution to the problems that can plague the Allen Bradley AC spindle motor 8720SM-011-S1-DB. We upgrade the motor bearings, modify the encoder pick-up gear to reduce runout and minimize flutter in the pulse generator signal, and we make numerous improvements to the covers and seals to better protect the motor against contamination. The result is a motor that is more robust and better performing than a factory new motor. Your Allen Bradley spindle motor 8720SM-011-S1-DB will be carefully evaluated by experienced technicians to determine if it is faulty. The windings and resolver will be tested with a variety of diagnostic instruments, all critical mechanical dimensions will be measured with micrometers, and all tests and measurements become part of our permanent record of the motor in our database. Worn mechanical components will be replaced with parts fabricated or refurbished by our expert machinists. Our machine shop is fully equipped with lathes, mills, and precision grinding equipment. If the winding has failed, it will be rewound with all class H insulation in our winding department. If the shaft is worn or broken, it will be replaced with a new shaft precision ground to the original specification. Rotating components will be precision balanced on one of our Schenck Trebel hard bearing balancing machines. Mechanical assembly tolerances such as shaft and flange runout will be verified to be within factory tolerances. Finally your 8720SM-011-S1-DB motor will be test run, checked for excessive noise or temperature, and vibration levels recorded. All test data becomes part of our database, and a link to the final service report will be emailed to you upon request. Don’t risk having your obsolete Allen Bradley spindle motor 8720SM-011-S1-DB “repaired”—send it to Endeavor Technologies to be completely rebuilt to factory specification!
Unlike most "repair" shops, we incorporate actual Allen Bradley servo amplifiers into our test stands. There is no doubt that your motor has been fully tested, and meets Allen Bradley's specification for new. We inventory thousands of dollars in spare parts specific to Allen Bradley: encoders, resolvers, cooling fans, terminal blocks, connectors, and more.
Our test procedures are the best and most thorough in the industry. Many "repair" shops can't run servo motors at all, and can't run spindle motors at full speed. An Allen Bradley motor rebuilt by Endeavor Technologies has been test run, closed loop with the encoder or resolver, to full speed. Spindle motors are tested for extended periods of time, until bearing temperatures stabilize. Vibration levels are monitored and verified to be within Allen Bradley's specification, not just a general standard for the electric motor repair industry. Each rebuilt motor is checked to ensure that it conforms to the factory assembly tolerances, not just an industry norm for general purpose motors. Slippage is a common problem with brake motors. Every Allen Bradley brake motor is torque tested after being rebuilt to ensure it holds at least the factory specified torque.