Product Description:

The SE-B5.320.020-10.015 is a synchronous servo motor manufactured by Bosch Rexroth Indramat for the SE Synchronous Servo Motors series. It is intended for closed-loop industrial automation tasks that require precise shaft positioning and speed regulation, such as indexing tables, pick-and-place actuators, and feed drives on machining centers. The tacho voltage ripple is limited to 1.5% to support stable speed feedback during operation.

This model delivers a nominal speed of 2000 rpm, providing a predictable velocity reference for motion controllers that synchronize multiple axes. Electromagnetic force generation is characterized by a torque constant of 1.60 Nm/A, which allows torque to be calculated from the applied phase current. Back EMF scaling is represented by a voltage constant of 176 V/1000 rpm, a value used when selecting a compatible inverter and DC-bus level. Current rise through the stator winding follows an electrical time constant of 18.0 ms, indicating how quickly commanded torque can be established after a step change. Copper losses at steady state are affected by a winding resistance of 0.47 Ω, which influences thermal loading and drive sizing.

A rotor inertia of 13.6 × 10⁻³ kg·m² balances rapid acceleration with smooth speed regulation. The motor has an overall mass of 31 kg, providing structural damping after installation. Heat dissipates over a thermal time constant of 40 min, allowing temporary overloads without an immediate rise to the maximum operating temperature. The winding inductance is 8.7 mH, which helps filter current ripple generated by pulse-width-modulated drives. The motor has a 180 mm flange pilot and a 32 mm shaft diameter without a keyway. Its shaft extension measures 58 mm, while the maximum housing length is 345 mm.