Product Description:

The SE-B5.440.030-00.000 is a synchronous servo motor produced by Bosch Rexroth Indramat within the SE Synchronous Servo Motors series. Built for closed-loop positioning in industrial automation systems, the unit converts electrical drive commands into precise rotary motion for tooling, material handling, or packaging axes. It uses a permanent-magnet rotor and a feedback interface compatible with Rexroth drives, enabling dynamic response while maintaining servo accuracy under variable load. This arrangement supports repeatable acceleration, deceleration, and position holding in machinery that must respond quickly to changing commands.

At a 2000 rpm nominal speed, the motor delivers rated shaft output while staying within its thermal envelope. The torque produced per ampere is 1.09 Nm/A, so the controller can estimate load by measuring phase current. During startup or while holding position, the windings can draw 47 A of standstill current. Electromagnetic behavior is also characterized by a phase inductance of 3.3 mH and a winding resistance of 0.14 Ω, figures that influence current rise time and copper losses. The back EMF rises at 120 V/1000 rpm, which helps with DC-bus voltage selection. An electrical time constant of 22.1 ms shows how quickly current reaches steady state relative to command changes. Mechanical coupling is provided through a shaft machined to Ø32 k5 × 58 mm and secured with a feather key sized A10 × 8 × 50, while the stator mounts to machinery through a flange diameter of Ø180 j6.

The rotor-load system exhibits a 279 ms mechanical time constant, and its reflected inertia including the tachogenerator measures 18.6 × 10⁻³ kg·m², which is useful for velocity-loop tuning. Heat absorption capacity is indicated by a thermal time constant of 47 minutes, allowing moderate overloads before steady-state temperature is reached. The enclosure carries an IP65 protection rating, sealing the motor against dust ingress and low-pressure water jets in typical factory environments. Overall mass is 39 kg, and the housing length is 395 mm, both of which matter when the motor is mounted on moving axes or compact machine frames. These physical characteristics should be considered when sizing supports, couplings, and available installation space.