Product Description:

The SE-B3.033.060-00.000 is a synchronous servo motor produced by Bosch Rexroth Indramat for the SE Synchronous Servo Motors series. It is intended for closed-loop industrial axes where rapid acceleration and accurate velocity tracking are required, such as pick-and-place gantries or packaging stations. The motor converts electrical energy from a matched drive into regulated rotary motion and returns position feedback for precise control in automated machinery.

The unit reaches a nominal speed of 6000 rpm, allowing high surface velocities on compact mechanisms. A static torque rating of 3.8 Nm means the energized shaft can hold that load without rotation. With a torque constant of 0.49 Nm/A, each ampere of phase current produces roughly half a newton-meter, which helps with drive sizing. Short-term overloads are handled by a peak current limit of 46 A. With phase inductance of 18 mH, the motor’s laminated core helps limit ripple and smooth the current waveform. Additional characteristics include a mechanical time constant of 6.7 ms, a back EMF constant of 60 V per 1000 rpm, and phase resistance of 2.36 Ω, which support controller tuning. The rotor’s inertia, including the tachogenerator, is 0.81 × 10⁻³ kg·m², and motion is transmitted through a Ø19 × 40 mm shaft with a keyway and feather key for positive coupling.

A standstill current of 7.7 A maintains holding torque when the shaft is motionless, and this current also serves as the thermal reference for continuous operation. Dynamic electrical response is associated with an electrical time constant of 7.7 ms, which is close to the mechanical constant and supports coordinated servo loops. Heat is absorbed gradually because the thermal time constant is 20 min, allowing intermittent overloads without exceeding insulation limits. The assembled motor weighs 8.1 kg, which affects mounting provisions and overall machine mass.