Product Description:

The SF-A5.0700.030-14.030 is a servo motor manufactured by Bosch Rexroth Indramat within the SF Servo Motors series. The unit serves as the rotary prime mover in automated lines, providing commanded torque and velocity to positioning tables, feed drives, transfer systems, and other motion axes that demand closed-loop accuracy and repeatable response. A holding torque of 56 Nm maintains static load position, and the IM B5 construction style supports flange mounting to machine frames.

At its rated operating point, the motor reaches 3000 rpm, a speed that aligns with common inverter output frequencies and allows direct coupling to gearboxes without overspeeding. When stalled, it can deliver up to 69 Nm of locked-rotor torque while drawing 45 A, which indicates the peak current demand during acceleration and short-duration load changes. Continuous electromagnetic performance is represented by a torque constant of 1.53 Nm/A, and this linear ratio between phase current and produced torque supports predictable current control across the working range. The rotor’s mass moment of inertia is 257 × 10⁻⁴ kg·m², a value that influences servo loop bandwidth and helps determine how quickly the axis can reverse without excessive overshoot.

The integrated fail-safe brake is energized at 24 VDC and releases with a current of 1.33 A, allowing the control cabinet’s low-voltage supply to handle clamping functions without a separate higher-voltage source. After de-energization, the brake engages in 53 ms to arrest motion, while it releases in 97 ms when voltage is restored so the axis can return to commanded movement. Brake inertia is 30 × 10⁻⁴ kg·m², adding marginally to the composite load on the drive. Overall length with the brake installed is 528 mm, and the assembly mass reaches 55.2 kg, which affects axis counterbalancing and support structure sizing. The brake resists the same static load as the motor’s rated holding torque, helping keep the axis secure at standstill.