Yaskawa J-37FZ
Single Wound and Dual Winding Motor
Lifecycle & replacement
Yaskawa's published discontinuation lists (checked 2026-09-01) do not assign a lifecycle status to this part number.
IAC stocks legacy spares and exchange units and quotes upgrade paths. Send us the nameplate details and we will confirm a compatible replacement.
Checked against: Yaskawa America Support By Product - Inverter Drives; Yaskawa America Support By Product - Servo Amplifiers; Yaskawa America Support By Product - Servomotors; Yaskawa America Support By Product - Machine Controllers; Yaskawa America Support By Product - PLC Controllers; Yaskawa America Support By Product - Spindle Drives; Yaskawa America Support By Product - Spindle Motors; Yaskawa product page carrying the verbatim definition of Legacy.
Technical specifications
Single Wound Motors
| Rated Outout 1 HP (kW) - 30 minute Rating (50%ED) | 50 (37) |
| Rated Outout 1 HP (kW) - Continuous Rating | 40 (30) |
| Rated Speed r/min - Base Speed | 1150 |
| Rated Speed r/min - Maximum Speed | 4500 |
| Output Torque at Base Speed Continuous Rating - N·m | 249.0 |
| Output Torque at Base Speed Continuous Rating - lb·ft (kgf·m) | 183.7 (25.4) |
| Rotor Inertia lb·ft (GD2/4) (kg·m2) | 8.068 (0.340) |
| Rotor GD2 lb·ft2 (kgf·m2) | 32.27 (1.360) |
| Vibration | V10 |
| Noise Level | 80dB(A) or less |
| Approx. Mass lb (kg) | 581 (263) |
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.