Product Description:

The SE-B3.033.030-14.000 is a synchronous servo motor produced by Bosch Rexroth Indramat in the SE Synchronous Servo Motors series. It is intended for closed-loop positioning and speed regulation in automated machinery, converting commanded current into controlled torque for rotary axes. An integral spring-applied brake and analog speed feedback capability allow the motor to hold position during stops and deliver repeatable motion profiles in multi-axis industrial systems.

During continuous operation, the unit reaches a nominal speed of 3000 rpm, giving it a practical balance between rapid cycle times and manageable centrifugal forces. A static torque rating of 4.2 Nm indicates the load the motor can hold at zero speed, and the windings draw a standstill current of 4.0 A to generate that torque without overheating. The brake is energized by a 24 V DC supply; once de-energized, it clamps the rotor in approximately 55 ms, minimizing axis drift after power loss. Field wiring uses a 2.5 mm² connection cross-section that supports the stated currents while limiting voltage drop. Mechanical coupling is handled by a 19 mm plain shaft that is 40 mm long and machined without a keyway, so couplings must rely on a clamping hub. The overall motor length is 256 mm, and its construction withstands mechanical shocks up to 6 g.

Once power is reapplied, the brake disengages within 40 ms, restoring motion with only a brief delay to the control loop. The square mounting interface uses a 116 mm flange that aligns the stator centrally in gearboxes or frames while keeping radial runout low. With a mass of 8.5 kg, the rotor inertia remains moderate, easing acceleration demands on the drive. The integrated tachogenerator produces 2.7 V/1000 rpm, supplying analog speed feedback to legacy controllers that do not employ digital encoders.