Product Description:

The SD-B5.250.015-14.000 is an electric drive element built by Bosch Rexroth Indramat for the SD Magnet Motors series. Designed for closed-loop motion platforms, the unit translates command currents from a compatible inverter into proportional rotary displacement. By supplying controlled torque and speed, it serves as a core actuator for pick-and-place axes, conveyor sections, and other automated stations that require repeatable positioning under variable load. Its compact flange interface simplifies installation in machinery frames where space and weight are constrained, and mechanical feedback devices can be coupled to the shaft to relay motion data to higher-level controllers. This arrangement is useful in indexing tables and transfer modules where repeated starts, stops, and reversals are common.

The motor uses Ferrite magnetic material, giving a stable magnetic circuit without rare-earth temperature drift. A square, ISO-standard face provides a 116 mm mounting flange so it can bolt directly to planetary gearboxes or pillow-block supports. Continuous rotation is rated at 1500 rpm, which suits moderate-speed machinery and direct-coupled motion stages. At zero speed, the stator can sustain 25 Nm of holding torque, allowing vertical loads to remain fixed while the drive is energized. Motion is transferred through a cylindrical shaft machined to 19 mm diameter by 40 mm, a size that matches common clamp collars and keyway hubs.

The unit is a brushless servo motor, so commutation is handled through electronic commutation and the rotor does not require brush maintenance. This layout supports smooth low-speed response and consistent torque production when used with a compatible inverter. Because there are no brushes to wear, routine service is limited to the surrounding mechanical components rather than electrical contact parts. It also avoids brush dust inside the housing, which is useful in enclosed machine spaces. The motor can be paired with external feedback hardware at the shaft when an application requires position or speed data for the control loop.