Product Description
Bosch Rexroth asynchronous motor MAD series has one of the prominent variants that is MAD100D-0250-SA-S0-AH1-05-N1 and it has a rated torque of 50 kW. The rated speed is 2500 rpm, and due to derating, the key speed is down to 2000 rpm. With universal bearings installed in it, this machine can run up to 9000 rpm. Standard bearings are deep-groove ball bearings that have high availability in the market and long service life. At maximum speed, the torque maximum value responds to 118.7 Nm. The torque constant is a fundamental parameter in electric motors and its value in this motor at 20 degrees centigrade is 2.04 Nm/A. It is the correlation between the motor's electrical input and its mechanical output.
It has 3 pole pairs, and the rotor moment of inertia excluding the holding brake is 0.0392 kgm2. The mass of the machine without brake is 72 kg. The MAD100D-0250-SA-S0-AH1-05-N1 is additionally equipped with an electrically releasing holding brake with rotor moment inertia of 0.000556 kgm2, and a maximum holding brake speed is 10000 rpm. This machine has a frame size of 100, a frame length of D, and a winding code of 0250. The cooling mode is through blowing using an axial fan.
The electrical connection is at side A and the minimum wire to power up the motor has a cross section of 6 mm2.
The MAD100D-0250-SA-S0-AH1-05-N1 has the plain output shaft that offers a non-positive, non-floating shaft-hub connection, and this variant doesn't have a sealing ring. These machines are maintenance-free as long as they are operated in the manufacturer's recommended conditions. To ensure functionalities, these motors are subjected to electrical and mechanical tests. It is advised to avoid using the electrically releasing holding brake for main spindle applications.
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