MSK050B-0300-NN-M2-UG0-RNNN Bosch Rexroth Indramat
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MPN: R911308185
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The Bosch Rexroth Indramat MSK050B-0300-NN-M2-UG0-RNNN is an IndraDyn S Synchronous Servomotor from the MSK IndraDyn S Synchronous Motors series. It has a plain shaft, uses natural convection cooling, and features increased concentricity design. The motor uses an optical multiturn absolute encoder with an EnDat2.1 interface and a resolution of 2048 signal periods.
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Product Description:
Bosch Rexroth Indramat supplies the MSK050B-0300-NN-M2-UG0-RNNN servo motor as part of the MSK IndraDyn S Synchronous Motors series. The product is an AC synchronous motor used in industrial automation to drive axes that require repeatable velocity, accurate torque, and integrated position feedback. When paired with an IndraDrive controller, it forms a closed-loop system that indexes loads, executes coordinated motion profiles, and maintains cycle-to-cycle accuracy in packaging, assembly, and material-handling equipment. Its synchronous design supports controlled starts, stops, and speed changes on axes where motion quality affects placement and transfer consistency.
The motor uses natural convection, so heat is dissipated through the housing without fans or liquid circuits. Feedback is transmitted over the digital EnDat2.1 interface, allowing position data and stored motor information to travel on a single four-wire link. The encoder provides 2048 signal periods per mechanical turn, which supports fine commutation and smooth low-speed operation. Because the sensing principle is optical, the feedback signal is not affected by magnet aging and can maintain stable accuracy over time. The multi-turn absolute function tracks shaft revolutions inside the encoder, so the axis can retain position information after power is restored without requiring a homing move.
The rotor is machined for increased concentricity, which helps keep radial runout low at the coupling. A feedback plug that is rotatable through 240° makes cable routing easier when space around the motor is limited. Frame size 050 with length code B gives the unit a compact footprint with moderate continuous torque density. Power is transmitted through a plain shaft, allowing the use of backlash-free clamp or collet couplings. The motor is supplied without a holding brake, so vertical loads need external locking or drive-applied holding torque. Winding code 0300 matches the motor to compatible drive current ranges and operating characteristics.
Frequently Asked Questions about MSK050B-0300-NN-M2-UG0-RNNN:
Q: How is the MSK050B-0300-NN-M2-UG0-RNNN motor cooled?
A: The MSK050B-0300-NN-M2-UG0-RNNN uses natural convection for cooling, so it operates without forced ventilation.
Q: What type of encoder does the MSK050B-0300-NN-M2-UG0-RNNN motor use?
A: This model features a multiturn absolute optical encoder with EnDat2.1 interface.
Q: How adjustable is the encoder connector on the MSK050B-0300-NN-M2-UG0-RNNN?
A: The encoder connector on this motor is rotatable within a 240° range.
Q: Does the MSK050B-0300-NN-M2-UG0-RNNN include a holding brake?
A: This motor is manufactured without a holding brake.
Q: What does the design of the MSK050B-0300-NN-M2-UG0-RNNN motor offer regarding axis alignment?
A: The MSK050B-0300-NN-M2-UG0-RNNN features an increased concentricity design for improved axis alignment.
