Product Description:

The SF-A2.0041.030-04.053 is a synchronous servo motor built by Bosch Rexroth Indramat as part of the SF Servo Motors series. In an industrial automation cell, this motor functions as the main rotary actuator, translating commanded current into controlled shaft movement for indexing tables, light conveyors, or ancillary tooling. The design supports mounting patterns common to IEC machinery, allowing installation close to the load and reducing coupling compliance. This improves repeatability and shortens settling times.

Electromagnetic characteristics govern how the drive reacts under load. A permanent-magnet rotor working with precisely spaced stator windings yields a torque constant of 1.43 Nm/A, allowing the controller to estimate output torque from phase current with linear accuracy. Under rated conditions, the shaft reaches 3000 rpm, giving moderate peripheral speed for packaging or servo-press cycles. When motion is halted, the brake engages at 24 VDC and draws 0.56 A, locking the axis with a static holding torque of 3.2 Nm so vertical loads remain stationary without amplifier power. Dynamic performance is supported by a total electromagnetic inertia of 5.4 × 10⁻⁴ kg·m², which limits overshoot while still permitting quick acceleration.

The square flange measures 100 mm, while the pilot on the mounting face is 95 mm in diameter, keeping the stator body concentric to gearboxes or belt pulleys installed in the IM B5 foot-free configuration. A keyed shaft sized 14 × 30 mm transmits torque without slip and allows the use of standard couplings. During start-up, a locked-rotor current of 2.7 A produces 4.1 Nm of breakaway torque. The brake inertia is 0.4 × 10⁻⁴ kg·m², which helps reduce stress on small reducers and timing belts, while dual NTC sensors monitor internal temperature rise.