Product Description:

The SF-A2.0026.030-04.058 is a permanent-magnet servo motor produced by Bosch Rexroth Indramat as part of the SF Servo Motors series. In automated production lines, it serves as the actuating element for feed axes, pick-and-place gantries, and light material-handling modules. By providing closed-loop control of position, velocity, and acceleration, the unit allows the connected drive to execute repeatable motion profiles that are essential for synchronized multi-axis machinery. Its permanent-magnet design also supports responsive torque delivery during frequent starts, stops, and short indexing moves.

At the mechanical interface, the circular flange spans 100 mm, matching standard IM B5 layouts so the unit can be mounted against a gearbox or machine frame without adapters. At rated conditions, the shaft turns at 3000 rpm, giving a fixed reference for speed loops executed in the drive controller. Electromagnetic conversion efficiency is indicated by the torque constant of 1.5 Nm/A, meaning each ampere delivered by the inverter produces that amount of continuous torque. During startup, the system must accommodate a locked-rotor current of 1.7 A, which produces a stall torque of 2.6 Nm for overcoming static loads. Internal heat is released through radiation and natural convection, so no fan or liquid cooling circuit is required.

Axis holding duties are managed by an electromechanical brake that can sustain 3.2 Nm on the shaft when power is removed. The brake coil is energized from 24 VDC and draws 0.56 A during engagement, while its 0.35 kg mass and 0.4 × 10⁻⁴ kg·m² added inertia affect dynamic response during acceleration and deceleration. Acoustic emission remains below 58 dB(A) at full speed, which helps keep operating noise low in surrounding machine areas. For transport or on-machine impacts, the assembly tolerates shocks up to 6 g, helping protect the rotor and feedback elements from misalignment.