Product Description:

The SG-A3.100.029-03.000 is a brushless servo motor produced by Bosch Rexroth Indramat for the SG Synchronous Servo Motors series. It serves as an electromechanical actuator that converts drive current into controlled rotary motion for positioning tasks in industrial automation cells. A resolver tracks the rotor angle and speed, supplying sinusoidal feedback to the servo drive for closed-loop motion control.

This unit develops a static torque of 11.2 Nm, so it can hold or start loads at zero speed without an external gearbox. At standstill, the windings draw 15.6 A, which establishes the continuous output current required from the drive inverter. Under rated conditions, the rotor reaches 3500 rpm, allowing direct coupling to ball screws or timing pulleys that need mid-range shaft velocity. The permanent-magnet rotor uses SmCo material, which maintains its magnetic strength at elevated temperatures and reduces the risk of demagnetization. Heat is removed through thermal radiation and natural convection, so no forced-air ducts are required. A compact holding brake engages automatically, and its release coil is energized at 24 V DC ±10%, matching common control power rails.

The housing has an ingress protection rating of IP65, providing full dust exclusion and protection against low-pressure water jets. The stator insulation is rated as Class F according to VDE 0530, permitting winding temperatures up to 155 °C before thermal aging accelerates. Mechanical attachment follows the B5 flange pattern, with IM V1 or IM V3 vertical mounting allowed. The mounting face maintains accuracy class N across a diameter of 140 mm, supporting precise alignment with the connected machinery. Output torque is transmitted through a keyed shaft measuring 24 mm × 50 mm; this geometry accommodates DIN 6885 feather-key couplings and positions radial loads near the front bearing. The permitted ambient operating temperature ranges from 0 °C to 40 °C.