Product Description:

The SF-A2.0026.060-00.000 is a permanent-magnet servo motor produced by Bosch Rexroth Indramat within the SF Servo Motors series. It is intended for closed-loop positioning and velocity tasks where rapid acceleration and repeatable motion are required on packaging stations, assembly cells, or gantry axes. The motor uses natural convection for heat removal, so it can be installed without external blowers when ambient airflow is sufficient. Its keyed shaft and compact 208 mm housing allow direct coupling to gearboxes or belts in space-limited automation frames. As a permanent-magnet design, it supports responsive torque production in applications that require frequent starts, stops, and direction changes.

At its rated speed of 6000 rpm, the rotor can deliver continuous motion when paired with a matching drive operating on a DC link of 670 V. The electromagnetic design produces a torque constant of 0.78 Nm/A, so commanded current scales directly with motor torque and supports predictable response during closed-loop operation. During startup, the motor withstands a locked-rotor torque of 2.7 Nm while drawing approximately 3.5 A, which is important for sizing fuses and short-term overload limits. This operating range helps the axis overcome static friction and begin motion without abrupt torque changes at the shaft.

A rotor inertia of 4 × 10⁻⁴ kg·m² yields quick acceleration yet limits overshoot when coupled to moderate load inertias. Position feedback is supplied by a single-turn absolute encoder that resolves 8 million increments per revolution, enabling small incremental moves without external batteries. This feedback arrangement helps the control system retain accurate position data within one mechanical revolution after power cycling. The square flange measures 100 mm, matching standard IEC mounting patterns, and the keyed shaft has a diameter of 14 mm with a 30 mm shaft length for secure torque transfer. For dynamic handling systems, the housing endures shocks up to 6 g, so it remains aligned on machines subject to rapid indexing or tool impact.