Product Description:

The SF-A4.0230.030-00.072 is a synchronous servo motor manufactured by Bosch Rexroth Indramat for the SF Servo Motors series. Designed as an actuator for industrial automation, it supplies controlled torque and velocity to mechanisms that need repeatable positioning. Electronic commutation eliminates brush wear and enables rapid current transitions, while the IM B5 construction provides a face-mounting flange that mates directly to machinery enclosures. The motor integrates directly with servo amplifiers and motion controllers used in packaging, assembly, and material-handling equipment.

At a rated shaft speed of 3000 rpm, the motor develops torque in proportion to current with a constant of 1.57 Nm/A. The windings are fed from a DC link that may reach 670 V, allowing high power density without increasing current. Position data come from an absolute encoder that delivers 8,000,000 increments per revolution at an accuracy of ±20 arc-seconds, so fine interpolation can be carried out directly in the controller. The rotor and stator assembly withstands mechanical shocks up to 6 g, supporting installation on indexing tables subject to abrupt starts and stops. A locked-rotor current of 14 A is specified for drive tuning, and magnetic alignment between the rotor magnets and the rotating stator field is maintained throughout operation.

In routine service, the bearings are rated for 20,000 h, providing predictable service intervals for production equipment. When the shaft is blocked, the motor can generate 22 Nm of standstill torque, which is useful for clamping duties or vertical-axis loads that must resist gravity until motion resumes. Acoustic output is limited to 58 dB(A), helping support low-noise operation in plant environments. A square 142 mm flange aligns the housing to gearheads or direct-drive mounts. Non-volatile feedback allows the controller to recover the shaft angle immediately after power loss.