Product Description:

The QSK075D-0300-NN-S5-UG0-NNNN synchronous servo motor is manufactured by Bosch Rexroth Indramat for the QSK Servo Motors series and is intended for tasks that require precise angular positioning under changing mechanical load. By linking with Rexroth digital drives, the motor supplies regulated torque and velocity to indexing tables, pick-and-place actuators, and light machining spindles. This arrangement can eliminate separate belt stages and provide direct, programmable motion in compact industrial assemblies.

Its mechanical envelope uses a frame size of 075, a square stator cross-section that eases installation inside machines designed around IEC 75 mm mounting patterns. The axial build uses length code D, giving additional active stack depth for higher continuous torque without increasing the footprint. Electromagnetic characteristics follow winding code 0300; this code corresponds to the wire gauge and turns per phase used for rated current and voltage compatibility with standard Indramat inverters. Thermal dissipation is handled solely by natural convection, so no external blower or liquid circuit is required when calculating enclosure airflow.

The motor connects through a 240° rotatable plug, so power and feedback cables can be routed clear of adjacent components without twisting conductors. Position data originate from an optical sensor that resolves each mechanical turn into 128 increments and relays the count through the Hiperface digital protocol; optical scanning reduces drift compared with magnetic devices. Because the feedback unit is single-turn, the controller tracks revolutions externally when homing is needed. Motion is held by drive torque alone because the unit is supplied without a holding brake, and a plain shaft with a sealing ring helps keep lubricant inside gearboxes while blocking process contaminants.