Yaskawa SGMSH-40AA
SGMSH Sigma II
Lifecycle & replacement
Yaskawa defines this status as: “Legacy products can still be purchased, but are not intended for new applications.”
- SGM7AListed under “Retrofit / Upgrade Product”IAC note: Joined to matrix row: SGMSH; successor column: Retrofit / Upgrade Product
- Applies to Yaskawa America (the Americas)
- Yaskawa support matrix: replacement not listed, factory repair available, exchange not listed
On a servo axis the amplifier, motor, encoder and cables are a matched set. When a legacy component fails, the manufacturer's current generation usually does not pair with the rest of the original set, so the whole axis typically has to be upgraded together: drive, motor and cables, and often controller parameters or firmware. Replacing only the failed unit is rarely possible. Before ordering, talk to us: we can quote a like-for-like legacy spare or exchange unit to keep the existing installation running, or engineer a matched upgrade path for the axis.
IAC stocks legacy spares and exchange units and quotes upgrade paths. Send us the nameplate details and we will confirm a compatible replacement.
Source: Yaskawa America Support By Product - Servomotors, retrieved 2026-09-01.
Technical specifications
Ratings
| System Voltage | 200V AC |
| Rated Output 1 - kW (hp) | 4.0 (5.4) |
| Rated Torque 1 - N • m | 12.6 |
| Rated Torque 1 - lb • in (kg • cm) | 129 (112) |
| Instantaneous Peak Torque 1 - N • m | 37.8 |
| Instantaneous Peak Torque 1 - lb • in (kg • cm) | 387 (336) |
| Rated Current * - A RMS | 25.4 |
| Inst. Max. Current 1 - A RMS | 77 |
Ratings [SGMSH Sigma II]
| System Voltage | 200V AC |
| Torque Constant - lb•in/A RMS (N•m/A RMS ) | 4.9 (0.53) |
| Moment of Inertia - lb•in•s 2 x 10 -3 | 8.5 |
| Moment of Inertia - kg•m 2 x 10 -4 | 9.6 |
| Holding Brake (at 20°C) - Capacity - W | 9.85 |
| Holding Brake (at 20°C) - Torque - N • m | 20 |
| Holding Brake (at 20°C) - Coil Resistance - W | 58.5 |
| Holding Brake (at 20°C) - Rated Current - A | 0.41 |
| Holding Brake (at 20°C) - Add'l Inertia - lb•in•s 2 x 10 -3 | 1.89 |
| Rated Ang. Accel.* - rad/s 2 | 13160 |
| Inertia Time Const. - ms | 0.6 |
| Inductive Time Const. - ms | 14.1 |
Documentation & CAD
Files hosted by Yaskawa; links open the official document or download page. 3D CAD requires a free Yaskawa login.
Manuals
Get a quote for a replacement
Industrial Automation Co. stocks, sources, and repairs Yaskawa parts — new, refurbished, or exchange units with warranty.
Specifications compiled from official Yaskawa product documentation. Always confirm against the datasheet for your exact unit and revision.