Product Description:

Bosch Rexroth Indramat manufactures the SF-A2.0041.030-10.056 servo motor within the SF Servo Motors series. The unit is a permanent-magnet synchronous motor intended for closed-loop positioning tasks in industrial automation, where it converts commanded drive current into precise rotary motion for packaging lines, handling systems, and general machine tool axes. It pairs with Indramat digital drives and delivers feedback through an integrated absolute encoder, allowing the controller to index the shaft without a reference move at power-up.

At a rated speed of 3000 rpm, the motor reaches its continuous operating zone without entering field weakening. A torque constant of 1.43 Nm/A links drive current to developed torque. Position feedback is delivered at 8 million increments per revolution, and the encoder maintains an accuracy of ±20 arcsec, so small positioning errors remain within machining tolerances. For start-up or stall analysis, the motor exhibits a locked-rotor torque of 4.0 Nm while drawing a locked-rotor current of 2.8 A. Two NTC thermal sensors sit in the stator windings to report temperature to the drive, allowing protective derating before insulation limits are reached. The motor has a smooth 14 × 30 mm shaft that supports backlash-free coupling to gearboxes or belt pulleys.

Mechanically, the housing carries a 100 mm flange that mates to standard servo gearheads, and the assembly follows the IM B5 mounting pattern with the shaft end exposed. Heat produced by copper losses is removed through natural convection, eliminating the need for forced-air accessories and keeping cabinet layouts simple. The smooth shaft style reduces fretting on clamped couplings, and the absolute encoder means homing sensors are unnecessary. The exposed shaft end allows direct connection to the driven machine element.