Product Description:

The SE-B4.090.050-10.000 is a synchronous servo motor manufactured by Bosch Rexroth Indramat and supplied within the SE Synchronous Servo Motors series. Designed for precision industrial automation, it transforms drive currents into controlled rotary motion so that packaging stations, gantry axes, or electronic cams achieve repeatable speed and position profiles under closed-loop feedback. It supports direct coupling to gear stages or belt drives and is often selected where cycle accuracy must be combined with compact frame dimensions. Closed-loop operation also helps the servo system correct speed and position deviations as load conditions change.

During continuous operation, the shaft reaches a nominal velocity of 5000 rpm, and the motor accelerates to that speed in just 60 ms, enabling rapid indexing. A static torque of 8.0 Nm is maintained at zero speed with a standstill current of 14 A, helping vertical loads remain stationary when motion is paused. That current passes through windings with 0.94 Ω resistance and 9.0 mH inductance. For short surges, the inverter can deliver up to 85 A. Combined with a torque constant of 0.57 Nm/A, this supports fast load changes without magnetic saturation. The back electromotive force rises linearly at 68 V per 1000 rpm, a value used to size DC-link voltage margin.

A rotor inertia of 2.18 × 10⁻³ kg·m² provides a balance between quick acceleration and mechanical damping when the drive calls on the maximum output of 23.0 Nm. Heat buildup is gradual because the thermal time constant is 27 min, allowing time-based current limiting rather than immediate derating. The motor uses the standardized mechanical envelope of the SE Synchronous Servo Motors series, supporting consistent integration with matching servo drive systems and common mounting interfaces. This layout is useful in compact axis arrangements where controlled motion and predictable thermal behavior are required.