Product Description:

The SF-A3.0068.030-00.030 is a synchronous servo motor produced by Bosch Rexroth Indramat as part of the SF Servo Motors series. This compact rotary unit is built for precision motion tasks in automated machinery, where it converts controlled drive current into repeatable torque and speed for positioning, indexing, or tensioning functions on industrial lines. It is intended for closed-loop motion applications that require consistent response during repeated machine cycles. The motor can be used where accurate speed regulation and repeatable positioning are both required within the same axis.

The motor has a rated speed of 3000 rpm, giving the drive predictable velocity limits during cycle-time calculations. Start-up performance includes a locked-rotor torque of 6.8 Nm when the shaft is held stationary, and it requires a locked-rotor current of 5.0 A from the inverter to reach that value. With a torque constant of 1.36 Nm/A, the controller can scale output smoothly across the load range. Axial loading on the shaft can reach 133 N without compromising bearing integrity, and bearing life is rated at 20,000 h under the stated radial and axial forces. These values support use with gearheads, belt drives, or direct-coupled mechanisms.

Maximum airborne sound pressure is limited to 58 dB(A), helping reduce noise in work areas near the machine. The housing withstands shocks up to 6 g, so transport or incidental line impacts are less likely to disturb alignment. Position data is provided by an encoder set to the Absolute Value format, which allows immediate position availability after power cycling. Overtemperature conditions are monitored by Two NTCs embedded in the stator windings, and their resistance change signals the drive to derate or shut down before insulation limits are exceeded. The encoder and thermal sensors allow position and winding temperature to be monitored during operation.