Product Description:

The SF-A5.0460.030-10.011 is a permanently excited synchronous motor built by Bosch Rexroth Indramat as part of the SF Servo Motors series. It serves as the rotary actuator in closed-loop motion systems, converting drive commands into controlled torque and speed for indexers, gantry axes, and tool spindles. The magnetic rotor design and integral encoder support fast response and accurate position feedback during rapid acceleration and deceleration in industrial automation. Because the encoder is integrated into the motor, the feedback path remains compact and reduces the need for separate external sensing hardware.

This model connects to a DC bus rated for 670 V, so the associated drive must supply that link voltage for normal operation. Under continuous operation, the shaft reaches a rated speed of 3000 rpm, which suits applications that need a mix of quick motion and stable thermal behavior. The electromagnetic design has a torque constant of 1.58 Nm/A, so phase current is translated into predictable torque output. That relationship helps the drive regulate torque smoothly when load demand changes quickly. During startup or a locked-shaft condition, the winding draws 29 A and can deliver a locked-rotor torque of 46 Nm. Two integrated NTC temperature sensors monitor stator heating so the drive can reduce output or shut the motor down before insulation is overstressed.

The motor is terminated with a power cable that uses a cross-section of 4 × 10 mm², and the mating signal connector is size 1.5 (8-pin) for the absolute encoder interface. Acoustic emissions do not exceed 58 dB(A), which helps keep nearby machine areas quieter during normal operation. The housing and bearing arrangement tolerate shocks up to 6 g, allowing installation on moving carriages or equipment exposed to short-duration impacts. This can be useful in machines where the motor is mounted on traversing assemblies rather than fixed base plates. An absolute encoder supplies single-turn position data immediately at power-up, which shortens startup sequences because no homing move is required before motion begins.