Product Description:

The SE-B5.320.020-00.019 is a synchronous servo motor produced by Bosch Rexroth Indramat within the SE Synchronous Servo Motors series. It is intended for closed-loop industrial axes that need precise velocity and position control. The design couples a permanent-magnet rotor with an electronic drive so that automation equipment such as gantries, packaging stations, or metalworking heads can translate electrical commands into tightly regulated mechanical rotation.

At a rated speed of 2000 rpm, the rotor reaches its nominal angular velocity while remaining within thermal and mechanical limits. When the shaft is locked, the motor can deliver 39 Nm of stall torque, and that torque requires a continuous phase current of 24 A. The relationship between current and torque is represented by a constant of 1.6 Nm/A; this factor allows the drive to calculate the current required for a commanded load. Back electromotive force rises linearly with speed, with a voltage constant of 173 V/1000 rpm. This value helps with drive selection by indicating the voltage generated as motor speed increases. A winding resistance of 0.47 Ω determines copper losses and influences temperature rise during steady operation.

The electrical time constant of 18 ms indicates how quickly stator current can build after a step command, while the thermal time constant of 40 min indicates how gradually the winding temperature responds to load changes. Acceleration characteristics reflect a rotor inertia of 13.6 × 10⁻³ kg·m², allowing moderate load matching without excessive overshoot. The housing has a mass of 31 kg, which contributes to heat absorption and structural stability. The shaft has a diameter of 32 mm and an extension length of 58 mm. The motor has a maximum overall length of 345 mm, IP67 sealing at the drive-end flange, and flange accuracy grade R.