ABB BSM90N-1250AX BSM N-series AC brushless servo motors

The ABB BSM90N-1250AX is a servo motor specifically optimized for high-speed operation within the compact BSM90N chassis. In its speed-torque tradeoff, it clearly leans towards speed.

Item Information Product Name ABB BSM N Series AC Brushless Servo Motor Product Model BSM90N-1250AX Manufacturer ABB Motor Type AC Permanent Magnet Synchronous Servo Motor Model Analysis According to ABB's naming conventions, we break down this model number as follows:

• BSM: Brushless Servo Motor.

• 90: Chassis size. Indicates the motor's flange size is approximately 90mm. This indicates it is a compact motor.

• N: N Series, ABB's high-performance servo motor product line.

• 1250: Motor winding code. This is the core performance identifier of this model. Compared to the previously discussed "3250" or "4150", "1250" typically indicates that the motor has a higher rated speed and lower rated torque for that frame size.

• A: Feedback System. A represents a standard incremental encoder.

• X: Axis Option. X indicates that the motor output shaft is a smooth shaft with a flat key.

Key Features and Typical Applications

• High Speed Design: The "1250" winding indicates that this motor, within the BSM90N frame size, is designed for high-speed operation.

• Compact and Lightweight: The 90 frame size makes it compact with low inertia, ideal for applications requiring rapid start/stop and lightweight construction.

• High Dynamic Response: As a servo motor, it provides precise position, speed, and torque control.

• Requires a Compatible Driver: Must be used with a compatible ABB servo driver (such as the MicroFlex e190 series).

Typical Applications:

Due to its high speed and compact design, it is ideally suited for:

• High-speed spindle drives (e.g., small engraving machines, drilling machines)

• High-speed conveyor and sorting systems

• Direct drives of small fans or pumps

• Lightweight robot axes requiring rapid movement

• Textile machinery

• Any other automation scenario requiring high speed but not high load torque