ABB BSM63N-275AX BSM N-series AC brushless servo motors

The ABB BSM63N-275AX is a specific model in ABB's high-performance N-series of AC brushless servo motors.

Here is a detailed breakdown of its key characteristics and typical applications.

The BSM63N-275AX is a compact, powerful, and dynamic servo motor designed for precise motion control applications. It belongs to the "N-series," which is known for its high torque density and excellent dynamic response.

Decoding the Model Number

• BSM: Brushless Servo Motor

• 63: Frame Size (the physical diameter of the motor housing, in this case, 63mm)

• N: Series (N-series, indicating a specific generation/performance family)

• 275: Motor-specific code, often relating to the stack length and torque constant.

• A: Design variant (e.g., winding type, voltage constant).

• X: Typically indicates the presence of a keyway on the shaft and a specific sealing option.

Key Technical Specifications (Typical)

• Frame Size: 63 mm

• Shaft: Likely a 14 mm diameter shaft with a keyway (as indicated by the 'X').

• Feedback Device: This motor is designed to be paired with a high-resolution feedback device, most commonly a sin/cos encoder (e.g., 20-bit or 24-bit multi-turn). This is crucial for precise positioning and smooth low-speed operation. The exact encoder type must be confirmed from the datasheet or motor nameplate.

• Protection Class: Typically IP65 (Dust-tight and protected against water jets), making it suitable for harsh industrial environments where coolant, dust, or washdowns are present.

• Cooling Method: Natural convection (self-cooled, IC410). It does not have an external fan.