SE-B3.033.030-04.037 Bosch Rexroth Indramat
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The Bosch Rexroth Indramat SE-B3.033.030-04.037 is part of the SE Synchronous Servo Motors series and features a maximum torque of 9.1 Nm with a nominal speed of 3000 rpm. This motor has a permanent-magnet single-disk brake supplied with 24 V DC and a protection class of IP67. The motor weighs 8.8 kg with the brake and has a flange size of 116 mm.
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Product Description:
The SE-B3.033.030-04.037 is a synchronous servo motor produced by Bosch Rexroth Indramat within the SE Synchronous Servo Motors series. Designed for closed-loop position and velocity control, the motor converts electrical energy into rotary motion for indexing tables, handling modules, and packaging axes in automated lines. Its permanent-magnet rotor and sealed housing allow direct mounting inside machinery, while the integrated holding brake maintains shaft position during power interruptions. Because it is intended for servo duty, the motor can respond quickly to command changes from the drive and maintain smooth motion through frequent starts, stops, and reversals.
In continuous operation, the servo reaches a nominal speed of 3000 rpm, giving a balance between rapid indexing and thermal limits. During acceleration, the electromagnetic design supports a maximum torque of 9.1 Nm, while the static torque at zero speed is 4.2 Nm, helping the axis resist unintended movement at a stop. A standstill current of 4.0 A flows through the stator windings to sustain that holding force and to create breakaway torque when motion starts. The integrated permanent-magnet single-disk brake is released by 24 V DC, and it clamps the shaft automatically when control power is removed. This electrical behavior supports predictable low-speed operation when the drive transitions from standstill to motion.
The motor uses a centering diameter of 110 mm and a 116 mm square flange, which simplifies coupling to standard gearbox adapters. The shaft measures 19 mm in diameter and 40 mm in length, providing adequate surface for keys or clamp collars. With the brake installed, the overall body length is 263 mm and the motor weighs 8.8 kg, which helps it fit compact multi-axis layouts without becoming difficult to support. The housing is sealed to IP67 to block dust and withstand temporary water immersion, and internal components tolerate shocks up to 6 g during transport or incidental machine impact. Power and feedback connectors accept 2.5 mm² conductors so the rated currents can be carried without excessive voltage drop. The flange and shaft proportions also leave room for direct coupling to pulleys, couplings, or compact gearheads in enclosed machine frames.
