Product Description:

The SF-A3.0068.030-14.053 is a synchronous servo motor produced by Bosch Rexroth Indramat and assigned to the SF Servo Motors series. It converts electrical power into controlled rotary motion for positioning or velocity loops in industrial automation such as assembly stations, pick-and-place axes, and packaging equipment. In these applications, a matched servo drive uses closed-loop control to regulate torque, speed, and position during repeated motion cycles. Its built-in parking brake and medium frame size place it in applications that need secure hold when power is removed and moderate continuous speed duty.

The integrated holding brake produces 10.0 Nm of static torque, so the shaft stays fixed during downtime or emergency stops. This brake is energized at 24 VDC, allowing direct connection to common machine safety circuits. Under energized running conditions, the rotor can reach a rated speed of 3000 rpm, supporting quick response for indexing moves. Electromagnetic conversion efficiency is indicated by a torque constant of 1.36 Nm/A; every ampere delivered by the drive results in that mechanical output, which helps the controller translate commanded current into predictable shaft torque during acceleration and low-speed positioning. The motor mounts on a 116 mm square flange, matching many mid-range gearbox and machine adapter patterns without extra brackets.

Dynamic start-up is supported by a locked-rotor capability of 6.8 Nm, enough to overcome static system friction when motion commands begin. The associated stall current of 5.0 A helps set inverter sizing for worst-case acceleration. The rotor inertia is 11 × 10⁻⁴ kg·m², which supports a balance between fast acceleration and smooth load following when the motor drives medium payloads or couplings with moderate reflected mass. The brake circuit draws 0.66 A when engaged, limiting heat generation inside tight control cabinets and allowing compact auxiliary power wiring.