Product Description:

The SD-B4.140.030-00.000 is a permanent-magnet servo motor produced by Bosch Rexroth Indramat as part of the SD Magnet Motors series. In industrial automation, this motor works with a matching drive controller to deliver controlled rotary motion for indexing tables, conveyors, and articulated mechanisms that require programmable speed and position control. Its design uses electronic commutation and a fixed magnet rotor, which reduces wear-related maintenance and supports repeatable torque during continuous operation. The motor is intended for applications that need steady response during frequent starts, stops, and directional changes.

It develops a standstill torque of 14.0 Nm, providing holding force during positioning when the shaft is energized but not rotating. Under rated electrical excitation, the rotor reaches 3000 rpm, which suits common servo applications with medium-inertia loads and allows rapid motion between indexed positions. The mounting interface uses a rectangular flange measuring 142 mm square, so the housing can be attached directly to machine frames or matching transmission components. Power is transmitted through a shaft sized at 24 x 50 mm, giving a compact output geometry for couplings and hubs. Magnetic excitation comes from a rotor ring made of ferrite, which supports stable operation across normal industrial temperature ranges.

The output shaft is supplied as a shaft with keyway and featherkey, which helps prevent slip during acceleration, braking, and direction changes. Because the unit is a brushless servo motor, commutation is handled electronically rather than through brushes, reducing wear and eliminating brush dust inside the motor area. This layout supports repeatable motion in equipment that cycles frequently throughout the day. Standard feedback provisions allow the motor to be integrated with coordinated motion systems, and the rigid shaft interface helps maintain accurate torque transfer at the load.