Product Description:

The SF-A5.0250.030-14.019 belongs to the SF Servo Motors series engineered by Bosch Rexroth Indramat for closed-loop positioning and velocity control in automated machinery. It is a permanent-magnet synchronous motor intended to operate with compatible Rexroth drive controllers. In service, it converts commanded current into rotational motion for axes that require repeatable accuracy during production cycles. Its servo design supports smooth acceleration and controlled deceleration on indexing, transfer, and handling axes.

This motor connects to a common DC bus maintained at 670 V, allowing fast energy exchange between multiple axes. A square metric flange measuring 190 mm simplifies mounting to gearheads or machines laid out to IEC patterns, while a torque constant of 1.44 Nm/A gives the relation between phase current and developed torque. The flange layout also helps align the housing on standard machine faces in compact installations. The holding brake is energized by 24 VDC; once actuated, it draws 1.33 A and secures the shaft with 56 Nm of static torque so vertical loads can remain stationary when power is off. Construction type IM B5 places the motor in a flange-mounted arrangement, and brake inertia of 30 × 10⁻⁴ kg·m² is matched to the rotor mass so stopping response remains predictable. Nominal acoustic emissions are limited to 58 dB(A), allowing the motor to run near production areas without exceeding common plant noise limits.

The axial bearing system endures up to 380 N of thrust, which supports belt tensioners or helical couplings without premature wear. Under brief stall conditions, current may approach 16 A before drive limiting intervenes to protect the windings. Once running, the rotor reaches a rated speed of 3000 rpm, and its 6 g shock resistance helps keep internal magnet alignment intact during normal operation as well as during transport or machine shock.