Product Description:

The Bosch Rexroth Indramat SF-B4.0172.060-10.053 is an AC synchronous servo motor in the SF Servo Motors series. Built for dynamic positioning tasks, the unit converts stator current into precise rotary motion for pick-and-place modules, packaging spindles, and general handling equipment. A digital servo feedback encoder resides in the housing and streams real-time rotor position to the drive, allowing tight velocity and torque loops during production cycles.

During continuous operation, the motor draws a phase current of 65.2 A at stall, producing a sustained torque of 19.5 Nm. Under rated supply frequency, the shaft can spin at a nominal speed of 6000 rpm, giving high linear throughput when coupled to gearless transmissions. The torque constant of 0.30 Nm/A means each ampere delivered by the inverter contributes three-tenths of a newton meter to the load. Fast current change is enabled by a low winding inductance of 0.7 mH, so controller commands translate into quick torque steps. The 0.07 ohm phase resistance keeps joule losses moderate, while digital servo feedback maintains commutation accuracy at high speed.

Transient demands are handled with a peak current of 293.3 A, allowing the electromagnetic system to develop up to 60.6 Nm for rapid acceleration or shock load absorption. The rotor inertia of 0.0042 kg·m² strikes a balance between quick start-stop capability and load stability, and the overall mass is 22.0 kg, which simplifies cabinet floor loading calculations. A protection rating of IP65 safeguards internal components against dust and low-pressure water jets, and the power leads enter on Side A so cable routing can follow the machine frame. A 110 mm centering diameter aligns the flange with precision mounting fixtures, while the shaft is supplied with a keyway for positive torque transmission. Because the assembly is delivered without a holding brake, the axis must be secured by external clamping or drive torque when power is removed.