SE-B4.210.050-10.037 Bosch Rexroth Indramat
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The Bosch Rexroth Indramat SE-B4.210.050-10.037 is part of the SE Synchronous Servo Motors series and features a mass of 22.0 kg and a flange size of 142 mm. This servo motor provides a nominal speed of 5000 rpm, a peak current of 174 A, and an IP67 protection class. It has a torque constant of 0.64 Nm per Amp and a winding resistance of 0.27 Ohms.
Internal Product Review
The SE-B4.210.050-10.037 is a Bosch Rexroth Indramat synchronous servo motor that stands out with a 5000 rpm nominal speed and IP67 protection. A 3.3 mH winding inductance paired with 0.27 Ω winding resistance supports responsive current control and efficient servo tuning. The 4.98 x 10^-3 kgm2 inertia gives the motor a well-balanced profile for high-dynamics axis applications.
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Product Description:
The SE-B4.210.050-10.037 synchronous servo motor is produced by Bosch Rexroth Indramat for the SE Synchronous Servo Motors series. As a permanent-magnet AC unit, it is intended to actuate linear or rotary axes that require precise velocity control and short positioning times in automated packaging lines, pick-and-place modules, and machine tools. Electronic commutation and integrated feedback allow closed-loop torque regulation, so the motor can hold or change speed accurately during dynamic motion.
Electrically, the motor reaches a nominal speed of 5000 rpm, supplying rapid traverse capability while maintaining positioning accuracy. Continuous stall torque is delivered from a standstill current of 28 A, and momentary accelerations can draw up to 174 A from the inverter. Torque rises in proportion to a constant of 0.64 Nm/A, and the generated back EMF follows a voltage constant of 68 V/1000 rpm. The phase inductance is 3.3 mH, while a winding resistance of 0.27 Ω limits copper losses during sustained duty cycles. These values influence current-loop dynamics and allow the drive to impose steep current ramps without inducing instability or excessive temperature rise.
Mechanical integration is aided by a centering hole of Ø125 H8 × 10 mm and a square mounting flange that measures 142 mm. The solid Ø24 × 50 mm shaft is supplied without a keyway, so couplings must rely on friction or shrink-fit methods. Rotor inertia, including the internal tachogenerator, is 4.98 x 10^-3 kgm², supporting responsive control of lighter loads. Overall length without a holding brake is 347 mm, and the housing mass without the brake is 22.0 kg. The enclosure is rated IP67, which shields it against dust ingress and temporary immersion and permits installation in washdown or coolant-prone zones.
