Product Description:

The SF-A4.0230.030-00.048 is a servo motor built by Bosch Rexroth Indramat for the SF Servo Motors series. Designed for use in precision positioning axes, it converts regulated three-phase drive current into controlled mechanical torque for assembly stations, pick-and-place modules, and similar automation equipment. A keyed Ø24 × 50 mm shaft supports direct coupling or geared connections, while mounting orientations of IM B5, IM V1, and IM V3 give the unit flexibility in horizontal or vertical layouts. It is suited for motion tasks that require repeatable starts, stops, and position changes within a compact machine envelope.

At a rated speed of 3000 rpm, the electromagnetic assembly produces a stall torque of 23 Nm, giving the axis stable holding capability when motion is stopped. During that condition, the stator draws a stall current of 16.2 A, a value the drive can use for thermal calculations and current limiting. The winding design provides a torque constant of 1.57 Nm/A, so the commanded current produces predictable torque output across the usable operating range. Dynamic behavior is influenced by a rotor inertia of 49 × 10⁻⁴ kg·m², balancing acceleration response against the reflected inertia of the connected load.

The total mass of 22 kg adds structural damping and helps moderate vibration when the motor is fastened to a machine frame. A housing length of 341 mm leaves room for cable bends and helps the unit fit common machine spaces, including vertical mounting positions. Heat is removed through radiation and natural convection, eliminating the need for fans and allowing operation in enclosed spaces where airflow is limited. For position feedback, a single-turn absolute encoder sends rotor angle data to the control system, so position is available immediately after power-up without a homing routine.