R911261943
The product listed is the R911261943 (MDD112C-N-030-N2M-130GA3), a model from Bosch Rexroth’s MDD series of synchronous servo motors. This particular model boasts optimal performance at high feedrates and high-speed ranges, ensuring impressive contouring accuracy. Key features include built-in natural convection and surface cooling for heat dissipation, a thermal sensor in the stator windings to prevent overheating damage, and a sealing ring in the plain shaft to keep out fluids. It sports a non-positive shaft-hub connection devoid of backlash, and the housing is protected by a black prime coating to stave off environmental damage. The model runs at a nominal speed of 3,000 RPM and bears a centering diameter of 130mm.
The R911261943 (MDD112C-N-030-N2M-130GA3) utilizes sophisticated digital servo feedback using an integrated multiturn absolute encoder. This replaces the need for separate incremental encoders and employs an optical measurement method to ascertain the motor’s absolute indirect position, even retaining this information after a power shutdown. This ensures a quicker startup time as the motor type name and control parameters are stored in the encoder's data memory. Furthermore, the servo motor's design eliminates the need for brushes and boasts lifetime-lubricated bearings, boosting reliability and ensuring maintenance-free operation. It also possesses an IP 65 Ingress Protection rating implying its resistance to dust, water jets and touch.
