R911255320
The R911255320 (MDD112A-N-030-N2L-130PB0) is an advanced digital AC servomotor designed and manufactured by Bosch Rexroth Indramat. Designed with a keyway output shaft, the motor is capable of transmitting torque in a form-fitting manner. The device automatically shuts down for thermal reasons and boasts a continuous start-stop operation with a high repetition frequency when used with a blower attachment. Taking care to prevent any potential liquid penetration into the housing, the device features shaft sealing along with keyway integration according to DIN 6885-A standards. With thermal capabilities between temperatures of -20°C and 80°C, it produces a theoretical maximum torque of 31.3Nm.
Notably, the R911255320 (MDD112A-N-030-N2L-130PB0) exhibits both axial and radial load functionality during operation. The unit has a measured overall length of 312mm, features a cylindrical shaft end as per DIN 748, Section 3 standards, and utilises power cables that can be either soldered or crimped. The motor housing is designed for both natural convection and surface cooling, with a peak current rating of 55.3A. In terms of position detection, the motor utilizes an optical system encoder while its inbuilt temperature sensor helps to maintain the optimal housing temperature, effectively preventing overload. The device is also able to recognise 4096 motor revolutions with its encoder. Its maximum usable speed is determined through torque-speed characteristics with the motor bearing boasting a lifespan of around 30,000 hours of operation.
