Mechanical interface
Shaft diameter, keyway or plain shaft, shaft seal, flange, centering diameter and mounting orientation are recorded together.
Motor identity, mechanics and feedback
Industrial servo motor repair and replacement support
A servo motor can fit the flange and still be wrong for the axis. Litco reviews the complete motor code, mechanical interface, feedback, brake and failure history before recommending repair or a shelf replacement.
Configuration-aware intake
The complete motor configuration belongs in the repair record
Frame size is only the beginning. Winding, nominal speed, cooling, encoder or tachometer feedback, shaft style, centering diameter, holding brake and connector direction can all change within one motor family. Preserving those details helps prevent a repaired motor—or a replacement—from returning with the wrong interface.
Send the full nameplate and photographs before the unit leaves the machine when possible. A view of the installed coupling, cable orientation and surrounding clearance can answer questions that are difficult to reconstruct after removal.
Equipment represented in this catalog
- AC and synchronous servo motors
- Legacy Indramat MAC and MDD motors
- MHD, MKD and MSK digital servo motors
- 2AD asynchronous spindle motors
What changes the recommendation
Four equipment-specific decision factors
Feedback system
The original encoder, resolver or tachometer arrangement must agree with the drive and the machine’s position or speed loop.
Brake and cooling
Holding-brake presence, brake rating and natural or forced cooling can distinguish otherwise similar motors.
Failure evidence
Noise, heat, contamination, shaft play, feedback faults and the sequence that stopped the axis help define the evaluation scope.
Before removal or shipment
Preserve the evidence a bench cannot recreate
Photograph the complete tag
Keep every suffix, material number and revision readable; do not crop the edges of the plate.
Record the installed position
Show the coupling, flange, cable exits, blower and any tight-clearance condition around the motor.
Protect the shaft and connectors
Use suitable covers and packaging so transport damage does not hide the original failure or create a new one.
Save the machine context
Include the machine builder, model, axis, drive type, fault message and what happened immediately before shutdown.
Only qualified personnel should remove or work around industrial electrical and motion-control equipment. Follow the machine builder’s safety, lockout and stored-energy procedures.
Connected catalog paths
Start with the family printed on the tag
MAC servo motorsBrowse legacy analog AC servo-motor series and model-length pages.Browse MAC servo motors →MDD servo motorsCompare digital AC servo-motor frames, lengths, speeds and options.Browse MDD servo motors →MHD motorsReview exact MHD records and family identification guidance.Browse MHD motors →MKD motorsFind MKD family and exact-code catalog records.Browse MKD motors →
What the first review can establish
Repair, replacement or the next piece of evidence
Repair evaluation
Litco can review the failed motor and explain the practical scope before work is authorized.
Exact shelf check
The complete code is compared with current inventory; availability, condition and configuration are confirmed at inquiry time.
Exchange discussion
When a compatible unit is available, Litco can compare an exchange path with repair and outright replacement.
Have the tag and photos ready?
Ask Litco to evaluate the exact unit.
Call 210-680-9570 or email sales@litcoautomation.com. Scope, timing, price and availability are confirmed before authorization.