Product Description:

The SD-B4.092.020-04.000 servo motor is produced by Bosch Rexroth Indramat as part of the SD Magnet Motors series. It is built for closed-loop positioning and velocity control in automated machinery such as packaging lines and material-handling axes, where precise response and compact mounting are critical. By integrating electronic commutation and a permanent-magnet rotor, the unit converts electrical drive commands into controlled mechanical motion for industrial automation. The motor is suited for applications that require repeatable moves, steady speed control, and quick correction of load changes during operation.

As a brushless servo motor, the model eliminates brush wear and supports maintenance-free operation in continuous-duty equipment. Its flange measures 142 mm, which suits medium-size gearboxes or machine frames that use this mounting size. The nominal shaft speed of 2000 rpm balances torque density and dynamic response, so the drive controller can maintain tight speed regulation without unusually high inverter frequency. At rest, the motor can develop 9.2 Nm of torque, allowing vertical loads to be held without motion within proper thermal conditions. Mechanical coupling is provided by a shaft size of 24 x 50 mm, which gives enough diameter for keyed hubs and enough length for secure clamping collars.

This variant comes with a disk brake as basic equipment, so the rotor can be locked when power is removed on vertical axes or index tables. During active braking or static holding, the integrated brake applies 9.5 Nm of torque, which helps resist back-driving at standstill. The rotor magnets are made from ferrite, providing stable magnetic behavior over a wide temperature range. Because the brake is integrated, the motor can hold position without requiring a separate external locking device in many machine layouts.