Product Description:

The SF-A3.0068.030-10.018 is a synchronous servo motor manufactured by Bosch Rexroth Indramat and grouped within the SF Servo Motors series. It is designed to deliver accurate rotary motion under closed-loop control, allowing machine builders to synchronize linear slides, indexing tables, or tooling spindles with sub-millisecond repeatability. By pairing an absolute encoder with electronic commutation, the unit feeds real-time rotor position data to the drive controller so that current vectors can be adjusted instantaneously for consistent torque production across the full speed range.

This motor mounts against a machine face by means of a 110 mm centering pilot, while power is supplied from a common DC bus operating at 670 V. The internal windings generate a back electromotive force with a Sinusoidal profile, which lowers harmonic distortion and eases current filtering in the drive. During startup or a jam condition, the shaft can resist external loading with a locked-rotor torque of 6.8 Nm and draws a corresponding locked-rotor current of 5.0 A. A plug-in output connector simplifies cable connection, and the absolute encoder eliminates the need for homing moves after power loss, helping the machine resume operation quickly.

The electromagnetic design delivers a torque constant of 1.36 Nm/A, so shaft torque can be predicted directly from commanded phase current. At its rated speed of 3000 min⁻¹, the motor can sustain continuous duty without exceeding thermal limits. A flange size of 116 mm provides adequate surface area for heat dispersion. Two integrated temperature sensors, specified as 2 NTCs, supply the controller with winding temperature feedback and allow dynamic derating before insulation temperatures are reached during repetitive high-duty cycles.