Product Description:

The SD-B3.068.030-01.000 is a permanent-magnet servo unit manufactured by Bosch Rexroth Indramat within the SD Magnet Motors series. Serving as the rotary element of a drive system, it works with a matched power module to deliver commanded motion in packaging lines, material handling stations, and general automation cells. By using field-oriented control, the motor supplies repeatable torque and speed so linked machinery can maintain accurate cycle times and position tolerances. This operating method also helps the axis respond predictably during starts, stops, and speed changes.

Its mechanical interface uses a flange diameter of 116 mm, allowing direct mounting to gearheads or machine frames without adapters. The rotor uses Ferrite magnets to establish working flux density, and under rated excitation the motor reaches a nominal shaft speed of 3000 rpm. At standstill, it can develop a continuous torque of 6.8 Nm, supporting stable holding or low-speed feed operations. Power is transferred through an output shaft with a diameter and length of 19 x 40 mm, providing adequate stiffness for belt-pulley or coupling-driven loads. The mounting arrangement supports compact servo assemblies where direct coupling can help preserve alignment between the motor and the driven load.

The electrical construction is classified as a Brushless servo motor, so commutation is handled electronically rather than through a mechanical commutator. This arrangement avoids brush contact at the rotor interface and supports smooth torque delivery across the operating range. The motor is intended to work with an external feedback device, allowing the drive system to monitor motion while the matched power stage regulates current to the windings. The absence of brushes also eliminates commutator arcing inside the motor housing.