MSK101D-0300-FN-S2-AG0-RNNN
MSK IndraDyn S Synchronous Motors
The MSK101D-0300-FN-S2-AG0-RNNN is an IndraDyn S Synchronous Servomotor from Bosch Rexroth Indramat's MSK IndraDyn S Synchronous Motors series. Featuring liquid cooling and an optical EnDat2.1 encoder with 2048 signal periods resolution, it delivers a continuous torque of 57.0 Nm at 34.9 A and peaks at 160.0 Nm with a maximum current of 137.7 A. Designed with increased concentricity, plain shaft and A-side power connector, this size 101 motor ensures precise performance without a holding brake.
Technical Specifications
Cooling
Liquid cooling
Power Connector
A-Side
Encoder Technology
Optical
Encoder Turn Type
Singleturn
Encoder Interface
EnDat2.1
Encoder Resolution
2048 signal periods
Motor Length
D
Motor Size
101
Holding Brake
Without holding brake
Design
Increased concentricity
Product Type
IndraDyn S Synchronous Servomotor
Shaft Type
Plain shaft
Rated Speed Code
0300
Continuous Current at Standstill 100 K
34.9 A
Continuous Torque at Standstill 100 K
57.0 Nm
Maximum Current
137.7 A
Maximum Torque
160.0 Nm
Winding Inductivity
3,200 mH
Frequently Asked Questions
With an optical singleturn EnDat 2.1 encoder (2048 signal periods), do I need homing after power-off?
Singleturn absolute means the drive knows position within one revolution at power-on, but multi-turn angle is not retained—home if the axis moved >1 turn while unpowered. Many EnDat 2.1 encoders also provide SIN/COS tracks that the drive interpolates for finer resolution.
Can non-Rexroth drives run this EnDat 2.1 feedback?
Yes, if the controller supports EnDat 2.1 with analog 1 Vpp tracks; EnDat 2.2 devices are backward-compatible at the command level but analog signals still matter for some drives. Verify your controller’s EnDat mode and wiring for the 1 Vpp channels before commissioning.
What are the practical benefits of the “increased concentricity / plain shaft” design?
Reduced runout lowers cyclic torque ripple and coupling misalignment forces, which helps precision at low speeds and extends bearing life. It also improves encoder signal stability, easing sub-micron interpolation.
How should I handle shaft and bearing loads on an MSK101D?
Keep axial force under the specified limit (≈500 N for MSK101 family) and size couplings/pulleys so radial load vs. overhang length stays within the MSK101 curves; exceeding these reduces L10 bearing life. Use the family’s Fr/Fa diagrams during mechanical design.
What thermal behaviors affect cycle-time in high-duty B2B applications (metal forming, robotics, semiconductor)?
Liquid cooling and the MSK101D’s long thermal time constant (~100 min) damp temperature swings, so torque droop over long programs is reduced versus naturally cooled variants. Still, validate duty cycles with the drive’s thermal model to avoid over-temperature faults on long peaks
Common Misspellings
MSK101D0300FNS2AG0RNNN
MSK101D 0300 FN S2 AG0 RNNN
MSK-101D-0300-FN-S2-AG0-RNNN
Internal Product Review
The MSK101D-0300-FN-S2-AG0-RNNN servomotor from Bosch Rexroth features liquid cooling, a plain shaft, and delivers 57.0 Nm continuous torque at standstill. It includes an optical singleturn encoder with EnDat2.1 interface and 2048 signal periods resolution. This motor is ideal for precision-driven applications in robotics, metal forming, and semiconductor machinery.
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