The Yaskawa SGMRV-37ANA-YR13 is an industrial AC servo motor commonly associated with Yaskawa Sigma-5 (Σ-V) motion platform, built for applications where you need tight speed regulation, repeatable positioning, and stable torque delivery under dynamic loads. In real-world factories, motors in this class typically end up on machine tools, packaging lines, converting equipment, robotics axes, indexing tables, and high-inertia material handling—anywhere “close enough” motion is expensive.
Based on widely listed market references, SGMRV-37ANA-YR13 is generally described as a 200 VAC, 3-phase servo motor in the 3.7 kW range, with a typical listed rated speed around 1500 rpm, current around 23.6 A, and rated/continuous torque around 23.5 N·m. (As always with servo motors: final authority is the nameplate and the matching drive/motor manual for your exact suffix/options.)
Sigma-5 is popular because it aims for the practical sweet spot: strong dynamic response, good tuning tools, and a broad motor lineup. Yaskawa’s own Sigma-5 product overview describes Sigma-5 rotary servo motors as covering a wide output range and commonly featuring absolute encoders as standard in the family. In a properly engineered system—rigid mechanics, correct inertia ratio, clean feedback wiring—this motor class can deliver that “snappy but not twitchy” motion profile that keeps cycle times down without shredding gearboxes, couplings, or bearings.
| Item | Typical Value (SGMRV-37ANA-YR13) | Practical Meaning |
|---|---|---|
| Motor type | AC servo motor, Sigma-5 family | Designed for closed-loop speed/position/torque control |
| Rated output | 3.7 kW | Suitable for heavier axes, higher throughput machines |
| Rated voltage | 200 VAC (class) | Common industrial servo bus/input family |
| Rated current | 23.6 A | Helps size drive, wiring, breakers |
| Rated speed | 1500 rpm | Typical base speed for torque-oriented axes |
| Rated/cont. torque (listed) | 23.5 N·m | Core torque capability for continuous duty |
| Discontinuation status (market note) | Often listed as discontinued by manufacturer | Sourcing strategy matters (stock, tested surplus, warranty terms) |
| Weight (shipping references) | 22 kg) | Impacts packaging, mounting, freight cost |
Yaskawa motor codes often encode the series, power class, and option package (shaft, brake, encoder/cable direction, environmental rating, etc.). For SGMRV-37ANA-YR13, the “37” is widely consistent with a 3.7 kW class listing, while the trailing option block is what typically determines details that matter in the field: whether a holding brake is present, which feedback type is fitted, and what connector orientation/cable exit you’ll be dealing with. If you are replacing an existing motor, match every character (or confirm equivalency in the Yaskawa documentation for that motor/drive combination), because “almost the same” in servo land can mean “won’t connect,” “won’t tune,” or “won’t home safely.”
A 3.7 kW Sigma-class motor with ~23.5 N·m listed torque is typically chosen for axes that need solid continuous torque, not just peak bursts. That’s the difference between “it moves” and “it moves all day in August, in a cabinet that runs warmer than anyone admits.” This class is common for ballscrew Z-axes, rotary tables, feeders, extruders/conveyors with tight speed regulation, and high-inertia rollers.
In many Sigma-5 installations, the servo amplifier/drive platform is the SGDV series. Sigma-5 drive documentation and datasheets commonly highlight features such as auto-tuning, vibration suppression, and support for multiple command/reference methods (including networked command variants). The practical value: quicker commissioning and fewer “mystery oscillations” when mechanics are less than ideal.
Servo motors don’t fail because they’re offended by physics; they fail because the system around them is messy. For SGMRV-37ANA-YR13 class systems, the biggest reliability multipliers are usually:
Correct motor/drive matching and parameter set
Proper shielding/grounding of feedback and power cables
Sensible accel/decel profiles (especially on high inertia loads)
Thermal management (cabinet airflow and ambient limits)
Mechanical alignment (coupling runout, bearing preload, belt tension)
Some distributors and secondary-market catalogs explicitly flag SGMRV-37ANA-YR13 as discontinued by the manufacturer. That doesn’t make it a bad motor—it makes it a procurement and risk-management issue. If you’re buying for replacement stock or for a customer machine, treat it like a mission-critical component:
| What to verify before buying | Why it matters |
|---|---|
| Clear nameplate photo + serial/lot info | Confirms exact suffix/options and reduces wrong-item risk |
| Shaft type, keyway, flange dimensions | Mechanical mismatch = instant return or rework |
| Brake presence and brake voltage (if applicable) | Safety holding and vertical axes depend on it |
| Encoder/feedback type and connector compatibility | Wrong feedback = can’t commission, or unstable loop |
| Tested status and warranty terms | Discontinued models often rely on seller warranty |
The Yaskawa SGMRV-37ANA-YR13 is a Sigma-5 class 200 VAC servo motor widely listed around 3.7 kW, 23.6 A, 1500 rpm, and ~23.5 N·m torque—well-suited for heavier industrial axes that demand stable torque and consistent closed-loop control. Pair it with the correct Sigma-family drive and clean installation practices, and it’s the kind of motor that quietly does its job for years. Treat suffix matching and verification seriously—especially given discontinuation notes in the market—and you’ll avoid the classic servo tragedy: a perfect motor sitting on a bench because one character in the model code didn’t match.
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