Product Description:

The SF-A4.0091.030-00.019 is a synchronous servo motor produced by Bosch Rexroth Indramat within the SF Servo Motors series. Designed for closed-loop positioning and velocity control, the unit converts electrical commands from a drive into precise rotary motion for actuators, gantries, and machine-tool axes in automated environments. Its synchronous design supports accurate response to changing speed and load commands during coordinated motion tasks. It can be paired with a compatible servo drive wherever accurate positioning and controlled acceleration are required on automated equipment.

It employs a bearing arrangement classified as fixed A-side, meaning the axial preload is taken on the drive-side bearing set so coupled loads remain accurately located. A mounting interface following IEC 72-2 / DIN 42948 provides dimensional interchangeability with other IEC-framed motors. The general installation orientation corresponds to form IM B5, indicating a flange-mounted housing without feet. During operation, the acoustic emission is limited to 58 dB(A), which helps the motor fit machinery that must stay within workplace sound limits. The embedded temperature monitoring channel covers a sensor range of -5 to +155 °C, giving the drive controller early warning before the windings approach critical thermal thresholds.

Mechanical coupling is handled by a keyed shaft, which permits torque transfer through standard key-and-hub connections and helps prevent rotational slip under reversing loads. The stator and rotor assembly withstands shocks up to 6 g, so brief impact events during transport or emergency stops do not compromise alignment. Two integral NTC probes, identified as 2 NTC, provide redundant temperature feedback that can be cross-checked by the drive for fault detection. This arrangement allows continuous thermal monitoring during operation and helps the control system react to abnormal heating before insulation stress becomes severe.