Product Description:

The SD-B3.031.030-04.000 brushless servo motor is produced by Bosch Rexroth Indramat as part of the SD Magnet Motors series. It supplies closed-loop rotary motion for packaging stations, pick-and-place modules, and other automated axes that require precise speed and position control. Coupled with a compatible drive, the unit converts commanded current into repeatable torque for accurate indexing and point-to-point movement. Its permanent-magnet rotor and internal holding brake help the axis remain immobile during emergency stops or power loss without relying on external clamps. Feedback from the matched drive allows the motor to respond quickly to changing load conditions during repetitive motion cycles. This makes it suitable for transfer units and indexing mechanisms that need controlled starts, stops, and short settling times.

Mechanical mounting follows a square interface of 116 mm, allowing direct bolting to gearboxes or machine frames without alignment adapters. The windings are optimized for a base speed of 3000 rpm, matching common inverter outputs while preserving torque bandwidth for dynamic positioning. Magnetic excitation is supplied by Ferrite material, which provides stable flux across the operating temperature range. At standstill, the stator can develop 3.1 Nm of continuous torque, giving the drive reserve for indexing tables and light presses. Machine safety is supported by an integrated disk brake that closes by spring force when the enable line is removed, preventing unintended shaft rotation during service or shutdown.

The motor resists back-driving loads up to 4.0 Nm, which helps suspended tooling stay in place on vertical axes. Power transmission components can be selected easily because the output journal measures ø19x40 mm, a size that fits standard couplings. The motor is supplied as basic equipment in its standard delivery condition. Its output geometry supports direct connection to common hub-style couplings used on compact servo axes. This shaft size is useful where compact couplings must transmit torque without adding unnecessary overhang to the motor bearing system.