Product Description:

The SF-A2.0041.030-14.057 is an AC servo motor from Bosch Rexroth Indramat in the SF Servo Motors series. It converts electrical energy into controlled rotation for positioning and velocity-regulated axes found in packaging stations, pick-and-place heads, and material-handling gantries. When coupled with Rexroth digital drives, the unit supplies the dynamic torque and response needed for closed-loop motion profiles in modern production lines.

A centering diameter of 130 mm mates the flange to precision mounting faces. The overall length of 357 mm affects clearance around the machine envelope. The shaft uses a keyway that conforms to DIN 6885 for positive coupling, and the power leads exit on Side A to simplify cable routing in multi-axis racks. Under continuous duty, the motor delivers 14.5 Nm of torque at a current of 24.1 A, and it reaches 3000 rpm. With a torque constant of 0.60 Nm/A, every ampere yields proportional shaft torque, and the stator’s electrical network presents 4.4 mH of inductance and 0.43 Ω of resistance, which affect drive tuning and thermal losses.

Dynamic response is characterized by a peak current capability of 108.2 A, allowing rapid acceleration up to a theoretical maximum torque of 45.1 Nm during short transients. The laminated rotor has an inertia of 0.0029 kg·m², so load matching can be performed without excessive overshoot. An integrated holding brake applies 11 Nm of static torque to secure vertical or indexing loads when power is removed. Thermal behavior is predictable because the copper and iron mass yield a time constant of 50 min, giving a predictable interval for intermittent overloads before steady-state temperatures are reached. Closed-loop commutation is supported by digital servo feedback with a multiturn absolute encoder, which reports position across full revolutions and removes the need for homing routines at startup.