Product Description:

The SD-B3.095.030-04.000 is a rotary servo unit built by Bosch Rexroth Indramat for the SD Magnet Motors series. Designed for closed-loop motion tasks, the motor converts electrical input into precisely regulated rotation for velocity and position control in packaging, material-handling, and light machining equipment. When paired with a compatible Rexroth drive controller, it operates as a feedback-regulated axis that supports repeatable cycle times and accurate path following in automated production lines. This arrangement is suited to applications that need coordinated starts, stops, and dwell periods without losing position accuracy between cycles.

The motor attaches to machinery through a flange that measures 116 mm in diameter, which simplifies installation where this footprint is already machined into a frame. Its electrical and mechanical design supports a nominal rotor speed of 3000 rpm, making it suitable for applications that need moderate shaft velocity without extensive gear reduction. When power is applied but motion is prevented, the stator can generate 9.5 Nm of standstill torque to support controlled positioning during indexing or dwell periods. A rotor built with Ferrite magnets provides stable magnetic behavior, and the unit is supplied as basic equipment with a disk brake so the shaft can be held after the brake channel is activated. The brake is integrated into the base configuration, which supports holding on axes that pause under load.

For stationary holding after the brake engages, the mechanism provides a static capacity of 4.0 Nm, which helps resist drift on vertical or externally loaded axes. Power is transmitted through a shaft with a diameter and length of 19 mm × 40 mm, a geometry that matches commonly available bellows couplings and timing belt pulleys used in compact servo systems. It is a brushless servo motor, so electronic commutation eliminates brush wear and supports consistent response across repeated motion cycles. The brushless design also avoids contact wear associated with commutators, which helps keep electrical performance stable over long duty cycles.