SE-KB4.090.030-00.011

SE Synchronous Servo Motors

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The SE-KB4.090.030-00.011, Bosch Rexroth Indramat, SE Synchronous Servo Motors deliver precision motion control in compact, rugged form. This brushless synchronous motor features a nominal speed of 3000 rpm and a torque constant (kt) of 0.90 Nm/A for highly responsive torque generation. An integrated brushless tach generator and commutation sensor provide real-time feedback and maintenance-free operation. With a mass of 13 kg and flange dimensions of 185 Ø mm, it fits seamlessly into industrial automation systems.

Optimized for dynamic performance, the SE-KB4.090.030-00.011 exhibits a moment of inertia of 2.18 kgm² x 10⁻³ and a fast mechanical time constant of 4.8 ms, enabling rapid acceleration and deceleration. The winding resistance of 1.90 Ω and winding inductance of 17.1 mH ensure controlled current flow and efficiency, while a peak current (imax) of 62 A and current at standstill (i₀) of 10 A allow high torque start-up. Thermal management is assured by a thermal time constant of 28 min and an electrical time constant of 9.0 ms to handle transient loads without overheating. A precision shaft with Ø 19 x 28 mm dimensions and keyway compliant with DIN 6885 simplifies coupling to downstream gear and transmission elements.

Designed for harsh environments, the IP67-rated enclosure resists dust and moisture, and shock resistance up to 6 g with vibration grade N maintains reliability on factory floors. The motor's compact maximum length of 252 mm supports high-density cabinet layouts, while the brushless design eliminates wear components for long service intervals. Seamless integration with Rexroth drive controllers ensures synchronized multi-axis operation, making SE-KB4.090.030-00.011 ideal for CNC machining, pick-and-place robotics, and dynamic production lines.