Motor & Reducer Cross-Reference Hub
Motor & Reducer Cross-Reference Hub
Any NEMA motor crosses to an equivalent on five nameplate points: HP, RPM, frame, voltage/phase, and enclosure (plus service factor for margin). These guides cover the brand-specific quirks - numbering systems, special mounts, voltage habits - that make each cross go smoothly. Or skip straight to the shortcut: photograph the nameplate and call (888) 203-2358; we cross motors off photos every day.
Brand Guides
| Brand | What the Guide Covers |
|---|---|
| Instant lookup: Cross-Reference Tool | Paste a Dodge TXT, Browning SMTP, Hub City PT, or Cleveland Gear model - get the in-stock cross |
| Baldor / Baldor-Reliance (ABB) | Super-E, general purpose, severe duty, washdown, pump |
| Leeson (Regal Rexnord) | Fractional, washdown, farm duty, jet pump, C-face |
| Marathon (Regal Rexnord) | XRI, Blue Max inverter duty, severe duty, HVAC |
| WEG | W22 cast iron, crusher duty, explosion proof |
| US Motors (Nidec) | HOLLOSHAFT vertical, oil well, general purpose |
| Dayton (Grainger) | MRO general purpose, farm duty, fractional |
| Dodge TXT / SCXT reducers | Dodge TXT / SCXT / HXT, Browning SMTP, Hub City PT, Cleveland Gear model-for-model table |
The Method, In Brief
- Record HP, RPM, frame, voltage/phase, enclosure, and SF from the old nameplate - the nameplate guide decodes every field.
- Frame match = dimensional match, per the NEMA frame chart.
- Match or upgrade the enclosure for the environment (ODP vs TEFC).
- Listed or special-duty motors (fire pump, explosion proof, marine) cross only to equivalently listed units.
- Verify the extras: shafts, brakes, encoders, thrust ratings on verticals.
What We Cross To
Stocking lines from WorldWide Electric (5,900 items: motors, reducers, drives) and North American Electric (severe duty cast iron), covering 0.25–600 HP - browse by application or by category.
Frequently Asked Questions
How do I cross-reference an electric motor between brands?
Match five nameplate points - horsepower, RPM (pole count), NEMA frame, voltage and phase, and enclosure type - then confirm service factor and any special features. Because manufacturers build to NEMA MG-1, a frame match guarantees mounting and shaft dimensions.
Is there a universal motor cross-reference database?
No single complete one exists - brands publish partial competitor tables, and numbering systems differ too much for automatic matching. The nameplate method works on any brand, including obsolete ones, which is why our guides teach it rather than a lookup table.
What if the frame on my old motor doesn't exist anymore?
Pre-1964 U-frames and odd fractional frames cross to modern T-frames with adapter bases or re-sheaving - the frame chart covers the dimensional differences, and adapter hardware is stocked.
Can accessories carry over to the new motor?
Often - C-face brakes, slide bases, and flange kits follow NEMA interfaces. Verify the accessory mounting matches the new motor's frame and face size; kits are stocked for common conversions.
Do you charge for cross-reference help?
No. Send a nameplate photo or call (888) 203-2358 and we return the equivalent part number, price, and availability - the point is getting the machine back up.
Related Resources
Nameplate photo → part number. Usually same call.
Most in-stock items ship same-day; call to confirm availability and freight.
Call (888) 203-2358