Product Description:

The SF-A5.0250.030-00.019 is a permanently excited synchronous servo motor from the SF Servo Motors series manufactured by Bosch Rexroth Indramat. In automated production cells, it converts electrical drive commands into controlled rotary motion for positioning tasks that need repeatable accuracy and fast response. A sinusoidal back-EMF profile works with vector drives to minimize torque ripple, while the motor cable can be wired with a 4 × 4.0 mm² cross-section to keep voltage drop low over machine lengths.

This unit reaches a rated speed of 3000 min⁻¹, giving standard servo axes a balanced mix of velocity and resolution. The torque constant is 1.44 Nm/A, so drive current scales linearly to output torque for predictable loop tuning. A link voltage of 670 V allows operation on high-power DC buses without step-up conversion, supporting rapid acceleration. During start-up tests the rotor can withstand a locked-rotor torque of 23 Nm while drawing 16 A; these figures define inverter peak limits and mechanical coupling strength. Sinusoidal back-EMF supports field-oriented control, and the absence of a mating connector lets machine builders select plug styles while respecting the motor connector size of 1.25.

The rotor inertia is 83 × 10⁻⁴ kg·m², a value that limits overshoot when the axis reverses direction. A square 190 mm flange matches large gearheads, and the IM B5 mounting face simplifies direct coupling to pump housings or gearbox plates. Two integrated 2 NTCs monitor winding temperature for shutdown before thermal limits are exceeded. The design also specifies a mating connector that is not included, reminding installers to source field-compatible plugs. All remaining conductors are routed through the stated motor cable, ensuring clear segregation between power and feedback paths.