Product Description:

The SE-B3.075.060-04.000 is a synchronous servo motor manufactured by Bosch Rexroth Indramat for the SE Synchronous Servo Motors series. It supplies rotary motion under closed-loop drive control, allowing precise speed and position regulation in automated machinery such as pick-and-place heads, packaging axes, and high-speed tool changers. A built-in electromagnetic brake secures the load when the axis is disabled, and the keyed Ø19 × 40 mm shaft permits direct coupling to gearboxes or pulleys without slipping.

This motor reaches a nominal speed of 6000 rpm, enabling fast indexing where short cycle times are required. During acceleration or short overload conditions, it can deliver up to 22.0 Nm, while the static torque rating of 8.2 Nm provides continuous load-holding capability at stall. The relationship between current and torque is characterized by a constant of 0.58 Nm/A, so drive tuning can predict mechanical output directly from the commanded current. A back-EMF value of 63 V/1000 rpm sets the voltage demands on the inverter at higher speeds and influences regeneration levels during deceleration. The brake circuit draws only 0.8 A at 24 V ±10%, minimizing auxiliary power consumption while still providing 8.0 Nm of holding torque for vertical or suspended loads.

Dynamic performance is supported by a peak phase current of 84 A, allowing the drive to apply short bursts of energy to overcome inertia or sudden increases in friction. The rotor has a moment of inertia of just 1.66 × 10⁻³ kg·m², so the axis can change speed quickly without requiring excessive servo gain. Electrical time constants are influenced by a winding inductance of 8.7 mH and a winding resistance of 0.90 Ω. Together, these values affect current rise time, resistive losses, and the sizing of drive-side filters. Standstill current is rated at 14 A, and the active housing length measures 288 mm, allowing installation in compact machine frames while maintaining thermal capacity for continuous operation.