Product Description:

The SG-B3.220.017-00.000 servo motor is manufactured by Bosch Rexroth Indramat within the SG Synchronous Servo Motors series. It is a brushless unit intended for closed-loop motion tasks in industrial automation, where precise control of position and speed is required for actuators, gantries, and rotary tables. The motor converts electrical power into mechanical torque through a permanent-magnet rotor and sends real-time shaft angle data to the drive through its integrated resolver.

Its static torque reaches 25.0 Nm, enabling the shaft to hold or accelerate medium-inertia loads without additional gearing. Continuous operation at a nominal speed of 2200 rpm supports consistent cycle times, and the windings draw a standstill current of 20.9 A, which must be considered when selecting the amplifier. Samarium-cobalt magnets, identified as SmCo, maintain magnetic flux at elevated temperatures and help reduce torque derating. Mechanical attachment is provided through a flange face measuring 140 mm in diameter. Accuracy class N machining and conformance with vibration grade N limit radial runout and resonance, helping preserve positioning quality during operation.

The housing is sealed to IP65, preventing dust and low-pressure water jets from reaching the internal windings. Permitted ambient temperatures range from 0 to 40 °C, and insulation class F according to VDE 0530 supports a winding temperature limit of 155 °C. Heat is removed through thermal radiation and natural convection, eliminating the need for fans. The motor uses the IM B5 basic mounting configuration, while IM V1 and IM V3 mounting positions are also permitted. It is supplied without a holding brake, which reduces its length and rotational inertia. Resolver feedback reports rotor orientation and spindle speed, while the metallic housing improves structural stiffness. A shaft with a keyway and feather key according to DIN 6885 measures 24 mm × 50 mm and provides secure torque transfer to connected couplings.