Product Description:

The SD-B5.250.020-00.000 is a brushless servo motor manufactured by Bosch Rexroth Indramat in the SD Magnet Motors series. It is designed for industrial automation tasks that require controlled rotary motion on machine axes, tooling spindles, and material-handling stations. By combining permanent-magnet excitation with an electronic drive, the motor converts electrical commands into precise torque and speed for closed-loop positioning and stable velocity control in assembly lines, packaging equipment, and conveyor systems. This operating method helps the axis respond accurately to changing load conditions during starting, running, and stopping. Because the rotor is electronically commutated, the system can maintain smooth motion over a wide range of commanded speeds.

This model develops a standstill torque of 25 Nm, so it can apply that level of torque while the shaft is not turning. Its nominal speed is 2000 rpm, which supports continuous-duty motion in applications that need steady rotary output. A flange diameter of 116 mm provides the mounting face for attachment to a machine frame or gearbox, and the shaft size is ø19×40 mm for compatible couplings or pulleys. The rotor uses Ferrite permanent magnets, which create the magnetic field needed for servo operation and influence the motor's thermal and magnetic behavior under load. The combination of torque, speed, and mounting dimensions makes the motor suitable for medium-duty servo axes that need consistent mechanical integration.

The motor is supplied with a shaft with a keyway and feather key, allowing torque to pass through a keyed hub instead of relying only on friction. This arrangement supports secure power transmission in applications with repeated starts, stops, and direction changes. When connected to a compatible electronic drive, the motor can react quickly to command changes for positioning, speed control, and synchronized axis movement. That response is useful in equipment that combines holding, indexing, and steady-state rotation within the same operating cycle. A positive shaft connection also helps limit slip between the motor and the driven element when the axis is subject to changing torque demand.