Product Description:

The SF-A2.0026.030-00.000 is a synchronous servo motor manufactured by Bosch Rexroth Indramat within the SF Servo Motors series. It serves as an electric motor for rotary positioning, speed regulation, and indexing duties in automated cells, packaging machines, and machining centers. Direct coupling through a keyway and feather-key shaft connection supports stable torque transmission, and the motor is intended for closed-loop operation with compatible Rexroth drive amplifiers.

At a DC link potential of 670 V, the stator windings draw power directly from the intermediate circuit without requiring separate step-down components. During continuous motion, the rotor reaches 3000 rpm, which suits many spindle and transfer-axis applications. With the shaft locked, it produces 2.6 Nm of stall torque while drawing 1.7 A. A torque constant of 1.5 Nm/A provides a clear relationship between commanded current and mechanical output. The motor also uses dual NTC thermistors for winding protection, has a housing length of 208 mm when no brake is fitted, and uses a keyed shaft with a 14 mm diameter and 30 mm key length for secure torque transfer.

The feedback stage provides 8 million increments per revolution of resolution and maintains absolute accuracy within ±20 arc seconds, allowing fine position control without external scales. A square flange size of 100 mm matches legacy Rexroth mounting patterns for straightforward installation on existing machine interfaces. The mass of 6.2 kg helps keep moving inertia low for short acceleration ramps. The complete rotating system, including the encoder, has an inertia of 4 × 10⁻⁴ kg·m², which supports quick response and stable settling behavior. A mating connector is not supplied, so the electrical connection can be matched to the machine's preferred wiring method.