SE-B2.030.060-00.003

Product Description:

Bosch Rexroth Indramat makes the SE-B2.030.060-00.003. A key factor in the SE-B2.030.060-00.003 synchronous servo motor’s electromagnetic performance when stationary or under light load is its 7.5 A static current. When the motor is not moving or producing very little mechanical output, this is the current flowing through the stator windings. Technically speaking, this is the current that sets up the magnetic field for holding torque. One of the mechanical performance measures of the SE-B2.030.060-00.003 servo motor is torque output. The motor’s ability to hold or oppose motion without any shaft movement is shown by 3 Nm at 0 rpm. The interaction between the stator’s electrified windings and the rotor’s permanent magnets produces this holding torque. Since there is no back EMF, torque can be maximized at a standstill by using the full current to create magnetic force. This is useful for applications that require high static load capacity, such as indexing tables, vertical axis lifts or joint actuators in robotic arms.

The improved winding shape and high permeability magnetic core that reduces losses and increases force transmission in non-rotational situations keep the torque. Resistance to external mechanical disturbances and control accuracy are improved by its low-speed torque performance. Due to magnetic saturation and back EMF, the torque of the motor will naturally taper off at high speeds. For example, the torque drops to 2 Nm at 6000 rpm, a trade-off that is typical for synchronous motors. By reducing the effective voltage between the windings and creating an opposing voltage inside the stator, the increase in rotor speed limits the current and electromagnetic force. To make sure there is enough torque at the operating points, especially in high-speed or cyclic applications, designers must look at the whole torque speed curve. Although the thermal and electrical design must take into account the reduced torque at peak RPMs, this motor’s performance profile is suitable for continuous dynamic motion.

In rigorous cycles, it’s essential to choose the right drive current, cooling method and inertia matching to avoid performance snags and overheating. The servo motor’s radial force capacity, determined by the shaft speed and the distance from the bearing where the force is applied, is the mechanical load management. Up to 850 N of lateral force can be applied to the shaft at 2000 rpm and 0 mm misalignment. The shaft and bearing system design, namely the stiffness and load rating of the bearings, defines this capacity. However, due to higher bending moment and stress concentration on the shaft, the force capacity drops to 500 N when the load offset is 40 mm at the same speed. As centrifugal and vibrational effects increase, the force capacity further drops to 600 N and 400 N for 0 mm and 40 mm offset, respectively, at 6000 rpm.