R911256222
Produced by Bosch Rexroth Indramat, the R911256222 (MDD112B-N-040-N2M-130PB0) servo motor belongs to the efficient MDD series. These motors, coming in varying frame sizes and torque options, cater to a wide application scope, such as textile machines, machine tools, and handling equipment.
This particular MDD servo motor combines superior performance and low maintenance operation. Its rotor is fortified with iron oxide and rare earth materials, and the design allows for extreme load-bearing, particularly in repetitive start-stop operations. Natural convection and surface cooling are facilitated by its housing structure. The brushless design and life-lubricated bearing contribute to its maintenance-free operation. The motor is designed to operate for a nominal lifetime of 30,000 operating hours and can handle high radial loads. The shaft features a DIN 6885 compliant keyway and a sealing ring to ward off penetration by hydraulic fluids.
In addition, the R911256222 (MDD112B-N-040-N2M-130PB0) model includes a digital servo feedback system with an integrated multiturn absolute encoder. This optical method accurately determines the motor's absolute instruction position, retaining information even after power switch-off. The possibility of thermal overload damage is tempered by a sensitive thermal sensor in the stator windings, facilitating high overload capacity through efficient heat conduction.
