SG-B2.027.049-00.000 Bosch Rexroth Indramat
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The Bosch Rexroth Indramat SG-B2.027.049-00.000 is part of the SG Synchronous Servo Motors series and weighs 3.6 kilograms with a nominal speed of 5500 rpm. This servo motor has a brushless resolver feedback device, a 100 mm flange size, and an IM B5 construction type. It is rated for IP65 protection and provides a standstill torque of 2.6 Nm with a standstill current of 6.8 Amps.
Internal Product Review
The SG-B2.027.049-00.000 is a Bosch Rexroth Indramat synchronous servo motor with IP65 protection and IM B5 construction. A 5500 rpm nominal speed and 2.6 Nm standstill torque give the motor a very capable balance of dynamic response and holding performance. Brushless resolver feedback makes the SG-B2.027.049-00.000 a strong choice for precision servo applications.
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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.
