R911270305
Bosch Rexroth Indramat's R911270305 (MDD090A-N-030-N2M-110PB1) is a servo motor from the MDD series. These motors are best known for their high power-to-weight ratio and synchronous operation, making them ideal for use in robotics and handling machines. The R911270305 (MDD090A-N-030-N2M-110PB1) sets itself apart with its low inertia, due largely to the incorporation of iron oxide and rare earth materials in its rotor's permanent magnets. It boasts a torque-inertia ratio that lends itself to high dynamics, and its brushless design and lifetime-lubricated bearings provide robust support for high radial loads.
In terms of functionality, the R911270305 (MDD090A-N-030-N2M-110PB1) features electronic commutation that enhances cyclic load capacity – an essential attribute for continuous start-stop operations with high repetition rates. It offers a nominal speed of 3,000 revolutions per minute and a rotor moment of inertia of 20 x 10-4 kgm2. Equipped with digital servo feedback with an integrated multiturn absolute encoder, and using the optical measuring principle, the motor impressive precision and system accuracy of ±0.5 angular minutes. To ensure the stability of the servo axis when de-energized, a blocking brake with a torque of 6.5Nm is incorporated in the motor design. Additionally, the thermal sensors embedded in the windings help guard against damage from overload.
