Product Description:

The SF-A2.0026.030-10.053 is a servo motor produced by Bosch Rexroth Indramat and belongs to the SF Servo Motors series. This compact rotary actuator is intended for motion axes that require repeatable positioning and precise velocity control in automated machinery. By converting electrical energy into controlled mechanical torque, the motor works with drive amplifiers to move tool heads, conveyors, or robotic joints in closed-loop systems used in packaging, assembly, and material-handling equipment.

At its rated speed of 3000 rpm, the rotor provides the operating velocity expected by the drive for belt stages and gearhead-driven axes. A torque constant of 1.5 Nm/A links phase current to output torque, allowing the controller to predict mechanical response from commanded current values. The motor is designed for a DC link bus of 670 VDC, which affects inverter selection and insulation requirements. Its square mounting interface corresponds to a 100 mm flange, allowing direct mounting on machinery built for that frame size. When the shaft is prevented from rotating, the unit can withstand a locked-rotor torque of 2.6 Nm, which is useful during hold-position or indexing tasks at startup.

The electromagnetic design produces a sinusoidal back-EMF waveform, which helps reduce torque ripple and supports field-oriented control. Heat is removed through natural convection, so the surrounding installation must keep ambient temperature within the permitted range without using a motor-mounted fan. Position feedback is provided by an integrated absolute encoder, which eliminates homing after each power cycle and supports multi-turn tracking through the control loop. Continuous excitation is supplied by a permanent magnet rotor, giving high power density while keeping the locked-rotor current at 1.7 A. Two NTC temperature sensors embedded in the stator windings provide thermal data to the drive so it can protect the insulation during extended duty cycles.