Product Description:

The MRS182B-1N-0085-NNNN belongs to the MRS Synchronous IndraDyn H Motors series from Bosch Rexroth Indramat. It is a frameless synchronous unit meant to be built directly into a machine structure where compact, high-density rotary power is required for positioning, spindle, or auxiliary axes. By integrating only the active motor components, the design allows OEMs to keep overall envelope dimensions small while still obtaining servo-class accuracy and response in industrial automation systems.

Under continuous load the rotor–stator set delivers 29.3 kW of mechanical power at a rated speed of 2800 min⁻¹, producing a steady output torque of 100 Nm while drawing a rated phase current of 64 A. These figures define the thermal equilibrium point that drive sizing programs use for duty-cycle calculations. The open construction carries a protection classification of IP00, so it must be mounted inside a guarded housing that supplies both mechanical shielding and external coolant flow. A plain-drilling mounting style lets the rotor be screwed directly to a customer flange, and the stator couples magnetically through four pole pairs to establish synchronous rotation. An 85 mm rotor inner diameter provides a through-bore for cabling or shafts, and the active steel stack weighs 9.6 kg; together these dimensions help machine builders route services without extra adapters.

During acceleration the assembly can spin up to 12000 min⁻¹, absorb transient phase currents of 170 A, and generate peak torque of 230 Nm for short intervals before thermal thresholds are reached. A reflected rotor inertia of 0.031 kg·m² must be added to the load side of motion-control equations to check servo loop stability and overshoot. The combination of low inertia, high corner speed, and ample overload margin allows rapid duty cycles, while the plain bore and drilling pattern simplify mechanical integration without adding extra mass.