Mechanical fit
Pilot/register, fixing threads, bolt circle, shaft diameter and extension, installed length and coupling clearance.
EXISTING MACHINE / INDUSTRIAL MRO
ServoDisc & printed-motor replacement review.
Start from the motor your machine already has. Bring its nameplate, flange and drive details into one structured assessment for a like-for-like scope or a brushless retrofit.
Start with the complete code
Find a legacy motor reference.
Search the model, a family abbreviation or manufacturer. A result identifies equipment for review; every replacement proposal still needs mechanical, electrical and duty validation.
19 identification references. Status: engineering review required. Supply and current OEM availability are unconfirmed.
| Legacy nameplate reference | Manufacturer / family | Reference source | Next step |
|---|---|---|---|
| U6M4 U-series ServoDisc | PMI / Kollmorgen | Kollmorgen ServoDisc catalogue ↗ | Review U6M4 → |
| U9M4 U-series ServoDisc | PMI / Kollmorgen | Kollmorgen ServoDisc catalogue ↗ | Review U9M4 → |
| U9M4LR U-series ServoDisc | PMI / Kollmorgen | Kollmorgen ServoDisc catalogue ↗ | Review U9M4LR → |
| U9M4H U-series ServoDisc | PMI / Kollmorgen | Kollmorgen ServoDisc catalogue ↗ | Review U9M4H → |
| U12M4 U-series ServoDisc | PMI / Kollmorgen | Kollmorgen ServoDisc catalogue ↗ | Review U12M4 → |
| U12M4H U-series ServoDisc | PMI / Kollmorgen | Kollmorgen ServoDisc catalogue ↗ | Review U12M4H → |
| U16M4 U-series ServoDisc | PMI / Kollmorgen | Kollmorgen ServoDisc catalogue ↗ | Review U16M4 → |
| JR12M4CH JR-series ServoDisc | PMI / Kollmorgen | Kollmorgen ServoDisc catalogue ↗ | Review JR12M4CH → |
| JR16M4CH JR-series ServoDisc | PMI / Kollmorgen | Kollmorgen ServoDisc catalogue ↗ | Review JR16M4CH → |
| JR24M4CH JR-series ServoDisc | PMI / Kollmorgen | Kollmorgen ServoDisc catalogue ↗ | Review JR24M4CH → |
| JR25M6CH JR-series ServoDisc | PMI / Kollmorgen | Kollmorgen ServoDisc catalogue ↗ | Review JR25M6CH → |
| JR33M6CH JR-series ServoDisc | PMI / Kollmorgen | Kollmorgen ServoDisc catalogue ↗ | Review JR33M6CH → |
| PMEE-12CBB Print Motor / Minertia P references | Yaskawa | Yaskawa Print Motor Junior instructions ↗ | Review PMEE-12CBB → |
| P12D-CG11 Print Motor / Minertia P references | Yaskawa | PMW Dynamics conversion reference ↗ | Review P12D-CG11 → |
| PMEE-12CBG Print Motor / Minertia P references | Yaskawa | PMW Dynamics conversion reference ↗ | Review PMEE-12CBG → |
| MC13S Axem F / MC identification references | Parvex / Axem | PMW Dynamics conversion reference ↗ | Review MC13S → |
| MC17H Axem F / MC identification references | Parvex / Axem | PMW Dynamics conversion reference ↗ | Review MC17H → |
| MC19P Axem F / MC identification references | Parvex / Axem | PMW Dynamics conversion reference ↗ | Review MC19P → |
| MC24P Axem F / MC identification references | Parvex / Axem | PMW Dynamics conversion reference ↗ | Review MC24P → |
Have a different suffix or unreadable plate?
Send the exact code or a controlled photo link. The absence of a search result does not prevent an industrial identification request.
Send nameplate details for review ↗Manufacturer names identify existing equipment. PancakeMotors is an independent engineering enquiry platform. Referenced catalogues and third-party conversion tables do not establish our affiliation, stock, authorisation or replacement compatibility.
A motor code starts the conversation
Freeze the interfaces that your machine cannot change.
Electrical and feedback
Amplifier, terminal voltage and current, commutation, encoder or tachometer, brake and connector pin-outs.
Duty and acceptance
Torque-speed points, load inertia, repeated starts, cooling conditions and the machine test that will qualify the proposal.
Choose the scope after identification
Keep the installed architecture or review a complete retrofit.
A like-for-like enquiry asks whether the existing mechanical and electrical requirements can be reproduced within an agreed scope. A brushless upgrade also needs a controller, commutation and feedback plan. Neither route is established by a matching flange alone.
The review should identify retained parts, changed parts, required drawings and acceptance tests before an order is placed. Repair, rebuild or new-manufacture feasibility is confirmed after inspection and sourcing review.
Describe what may change in your machine →
Three useful photographs
Start identification without recreating the motor drawing.
01 / Motor plate
Include the entire code and suffix, serial/build references and the printed electrical ratings.
02 / Flange and shaft
Show the front register and fixing holes, shaft end, coupling and overall side view. Use a scale where practical.
03 / Drive and feedback
Include the amplifier label, feedback/brake labels and connector faces. Share existing wiring documentation if authorised.
Review the details that vary by legacy family.
Kollmorgen / PMI U9M4 & U12M4 Replacement Review ↗Suffixes, shaft extensions and analogue feedbackKollmorgen / PMI JR16, JR24 & JR25 Retrofit Review ↗Ruggedized assembly, brake and support loadsYaskawa PMEE / Print Motor Replacement Assessment ↗Full model prefix, amplifier pairing and feedback polarityParvex Axem MC19 / MC24 Disk-Rotor Replacement Review ↗Exact MC suffix, tachometer package and brake length
Questions before choosing a replacement path
Can an industrial replacement start from a nameplate photo?
Yes. Send the full model or a nameplate description, a clear flange/shaft photo and the drive label when available. Initial identification does not require a finished CAD model.
Is a brushless motor electrically interchangeable with a brushed ServoDisc?
That requires a separate drive and feedback review. Mechanical fit alone does not establish commutation, amplifier, feedback or wiring compatibility.
Can you guarantee a drop-in equivalent from a model code?
No. A qualified proposal requires the installed dimensions, electrical and feedback interfaces and machine duty to be reviewed. A model-code search is only the identification step.
Can I enquire about one motor for an industrial machine?
Yes. A single-unit industrial MRO review is within this enquiry route. Quantity alone is not used to reject maintenance or prototype projects.
Should I send confidential drawings in the first message?
Request an NDA and agree a controlled file transfer before disclosing confidential material. You can begin with non-confidential plate details and a description of the machine.
Reference documents for the existing motor
These primary manufacturer resources support identification and explain why interface review matters. Their specifications describe the original products, not a PancakeMotors supply model.
- Kollmorgen ServoDisc catalogue ↗
- PMW Dynamics conversion reference ↗
- Yaskawa Print Motor Junior instructions ↗
Have the plate but no drawings? Begin with the full code, machine type and photographs you are authorised to share.
Send Nameplate Details for Review ↗