Product Description:

The SF-A5.0700.020-00.038 is a brushless servomotor manufactured by Bosch Rexroth Indramat for the SF Servo Motors series. Intended for positioning axes, conveying tables, and automated packaging lines, the unit converts electrical drive power into controlled mechanical torque that can be commanded by digital motion controllers. Its brushless construction eliminates commutator wear, and an integrated rotor position sensor supports closed-loop operation for precise speed and position regulation in high-cycle industrial automation. This layout is well suited to machines that require frequent starts, stops, reversals, and repeatable motion without the added maintenance associated with brushed designs.

During startup, the stator can draw a locked-rotor current of 34 A, developing a stall torque of 69 Nm that helps overcome static friction in loaded axes. Once motion begins, the drive sustains rotation at its rated speed of 2000 rpm, and each ampere supplied adds incremental torque according to the motor constant. The power stage is fed from a DC link held at 670 V, so the paired inverter must provide that bus level for normal operation. For commutation and position reporting, the motor uses an Absolute Value Encoder, which preserves mechanical reference data through power cycles and supports synchronized multi-axis movement.

The motor body mounts to the machine through a flange that measures SW 190 mm, providing a consistent interface for alignment and installation. The enclosure is rated IP67 with mating connector, helping protect the housing against coolant spray and brief immersion when the proper connector is installed. Mechanical testing verifies resistance to shocks up to 6 g, and airborne sound pressure remains below 58 dB(A) for quieter operation around surrounding equipment. Embedded winding thermistors provide thermal protection by signaling the controller before insulation limits are exceeded, which helps the motor remain in service during demanding duty cycles.