SF-A4.0125.015-14.057

SF-A4.0125.015-14.057 from Bosch Rexroth Indramat is a high-precision servo motor in the SF Servo Motors series, engineered for demanding motion-control applications. Equipped with an STG/MTG encoder, it delivers accurate position feedback and repeats within microns. The motor features a Locked Rotor Current of 14.5 A and a Rated Speed of 1500 rpm, ensuring robust starting torque and consistent operation under variable loads. Its Basic Version with Holding Brake, w/o Mating Connector shaft option integrates a fail-safe brake that holds position when power is removed.

This synchronous drive adheres to an IM B5 flange mounting standard, securing with through-bolts for rigid coupling to gearboxes or machine frames. The integrated holding brake is released by a 24 V DC control voltage (±10 %) and provides 2 Nm of braking torque, while the brake assembly itself weighs 0.21 kg. Thermal protection is built in: embedded thermistors in the windings monitor temperature, automatically reducing output if the housing exceeds the 0 … 40 °C ambient range. Firmware version 0.57 optimizes current vector control and supports both single-turn and multi-turn encoder evaluation for extended travel and homing precision.

Bosch Rexroth Indramat designed the SF-A4.0125.015-14.057 for seamless integration with its IndraDrive controllers and multi-axis servo racks, simplifying system architecture. The precision encoder and brake combination enhance reliability by preventing drift during power interruptions and rapid reversing cycles. Backed by a 12-month warranty, this motor delivers long-term stability and repeatability in packaging, conveyor, robotics, and CNC machining installations.