Siemens SIMOTICS S-1FT7 Synchronous Servo Motor

Siemens SIMOTICS S-1FT7 Synchronous Servo Motor About

The Siemens 1FT7138-5SB71-1BK0 is a SIMOTICS S-1FT7 synchronous servo motor designed for high-performance, precise, and dynamic motion-control applications. It uses permanent-magnet synchronous motor technology to provide accurate torque, speed, and positioning performance, making it suitable for CNC machine tools, robotics, automated production systems, material-handling equipment, packaging machinery, and other demanding industrial applications.

The 1FT7138 frame size provides a robust industrial construction with high power density and excellent dynamic response. The -5SB71 configuration defines the motor's electrical, mechanical, and cooling characteristics, while -1BK0 identifies the specific motor configuration. The motor is intended for integration with compatible Siemens SINAMICS drive systems, providing responsive servo control, precise positioning, and reliable continuous-duty operation.

Typical applications include CNC axes, machine tools, robotics, automation equipment, packaging machinery, handling systems, and precision positioning applications. Its permanent-magnet design enables efficient servo operation and rapid acceleration and deceleration.

For the exact 1FT7138-5SB71-1BK0 MLFB, specifications such as rated power, rated torque, rated speed, encoder type, holding brake, IP protection, dimensions, and weight should be verified against the Siemens-specific documentation rather than inferred from another 1FT7138 variant.