Product Description:

The SE-B4.210.050-10.010 is a synchronous servo motor manufactured by Bosch Rexroth Indramat for the SE Synchronous Servo Motors series. It is designed for closed-loop positioning tasks in industrial automation, where rapid speed changes and accurate torque delivery are required to keep tooling or conveyors aligned with machine cycle commands.

The motor reaches a nominal velocity of 5000 rpm, allowing fast indexing while the static holding capability is rated at 18 Nm so loads can be supported at standstill without drift. A peak supply demand of 174 A defines the inverter output that must be available during acceleration, whereas normal continuous current remains at 28 A. Electromagnetic conversion efficiency is indicated by the torque constant of 0.64 Nm/A; this value links commanded current to produced torque inside the control loop. Mechanically, a flange diameter of 142 mm and IM B5 face mounting simplify integration on gearboxes or frames. The rotor’s 4.98 × 10⁻³ kg·m² inertia moderates overshoot, and concentricity is increased per DIN 42955 to minimize run-out. There is no keyway on the shaft to avoid stress risers, but alignment is maintained by a ground cylindrical surface. A built-in tachogenerator provides 1.8 V/1000 rpm feedback, and the stator wiring shows 0.27 Ω resistance with 3.3 mH inductance to damp current ripple.

Dynamic reserves are expressed through a maximum torque of 52.0 Nm, giving ample headroom above the continuous rating for brief load spikes. Electrical behavior at higher speeds is characterized by a winding inductance of 3.3 mH and a back-EMF slope of 68 V/1000 rpm, factors the drive must counteract with voltage boost during rapid ramps. The ground, smooth shaft measures Ø24 × 50 mm, enabling rigid coupling with low backlash collars and eliminating the need for key alignment procedures.