R911386821 (MSK101C-0301-NN-S1-BG0-NSNN)

It provides absolute position within one revolution for enabling the drive to commutate immediately with precise electrical angle alignment and stable torque production from standstill. Its Hiperface protocol blends absolute and incremental channels for clean interpolation and drive diagnostics.

The convection eliminates blower hardware for simplifying maintenance and reducing potential ingress paths in dusty or washdown environments, while remaining suitable for continuous loads within the motor’s thermal model. When heat density rises, MSK family options allow field-addable blowers or liquid cooling on other variants.

Its plain shaft supports backlash-controlled clamp couplings and precision gearheads for minimizing stress concentrators and improving concentricity. It’s advantageous for high servo stiffness, smooth reversal and reduced mechanical runout under cyclic positioning.

The B-side orientation simplifies strain-relief and segregates power from feedback harnessing on certain machine layouts for aiding EMC practices. It allows tight side-exit routing near linear stages or within compact axis modules.

Yes, the Bosch Rexroth specifies using compatible IndraDrive controllers and approved feedback interfaces for ensuring correct commutation, SIL features and thermal/overcurrent protection states across the full operating envelope.