R911258221
Produced by Bosch Rexroth Indramat, the R911258221 (MAC063B-0-JS-4-C/095-B-0/WA612XX/S001) is a standalone servo motor expressly designed for convection cooling. Its performance features an impressive speed rating of 6000 RPM. With a 0.8 Nm continuous torque at standstill and a 3.5 Amps continuous current, this motor ensures smooth and steady power application. Its 0.00024 kg m2 rotor inertia indicates swift response times for rapid start-and-stop operations. It is noteworthy that the motor's windings possess a resistance of 3.7 Ohms at 20 degrees Celsius and its inductance is approximately 3.5 millihenry. Moreover, the torque constant sits at 0.23 Nm/A at the same temperature with a maximum peak pulse current of 19 Amps. The heating element has a thermal time constant of 30 minutes when convection cooling is used. Although lacking a blocking brake, it relies upon an external cooling fan for increased thermal control.
Enhanced with a tacho feedback mechanism, the R911258221 (MAC063B-0-JS-4-C/095-B-0/WA612XX/S001) motor can pair with notable components such as an incremental or absolute encoder. Consequently, the control system can maintain an accurate record of the motor's speed, positioning, and torque while making precise adjustments as needed, ensuring optimal motor performance. This feedback system's predictive maintenance capabilities build on monitoring various parameters, facilitating early fault detection, promoting reliability, minimizing system downtime, and extending the motor's lifespan. It's essential to note that the motor is powered via a power cable attached on side B of the housing and should only be operated and maintained by trained professionals due to its complexity.
