Product Description:

The SG-B2.027.049-00.000 is a synchronous servo motor produced by Bosch Rexroth Indramat as part of the SG Synchronous Servo Motors series. Designed for compact machinery, the unit provides precise speed and torque control in automated conveyors, assembly jigs, and pick-and-place axes on the factory floor. It converts regulated drive current into rotational motion while sending feedback to the controller, forming a closed-loop actuator that maintains commanded profiles under rapidly changing load conditions. Its lightweight frame also eases installation in multi-axis gantry systems.

Its mounting interface uses a 100 mm flange that matches IEC dimensions and bolts directly to gearboxes or machine plates. The construction code IM B5 indicates a face-mounted end shield with threaded holes on the drive side. Rated service reaches 5500 rpm, so the rotor can follow high-cycle commands when driven by a matched inverter. At zero speed, the motor delivers 2.6 Nm of standstill torque while drawing 6.8 A of current. With a torque constant of 0.41 Nm/A, output torque scales linearly with commanded current, easing vector control tuning. A brushless resolver on the rotor supplies absolute position feedback for the drive.

The housing meets IP65, sealing the stator against dust and low-pressure water jets so enclosure-free mounting is possible on moving gantries. The low rotating mass provides a rotor inertia of 0.155 × 10⁻³ kg·m², enabling rapid speed changes with limited overshoot. Power is transmitted through a Ø19 × 40 mm shaft that accepts keyed hubs, while concentricity is maintained by flange accuracy grade N. The overall length is 147 mm, allowing the motor to fit in compact frames while leaving clearance for the resolver at the rear. The total mass is only 3.6 kg, which minimizes the added load on linear slides and vertical axes.