MRS202A-1N-0096-NNNN Bosch Rexroth Indramat
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The Bosch Rexroth Indramat MRS202A-1N-0096-NNNN is part of the MRS Synchronous IndraDyn H Motors series. This motor features a rotor mass of 12.8 kg, a rotor inner diameter of 96 mm, and a rotor outer diameter of 145.5 mm. It has five pole pairs and a rotor inertia of 0.05 kg·m².
Internal Product Review
The MRS202A-1N-0096-NNNN is a finely engineered synchronous motor rotor for Bosch Rexroth IndraDyn H systems, featuring a smooth-hole bore design and an H6 bore fit for accurate mechanical integration. With 5 pole pairs and 0.05 kg·m² rotor inertia, this unit delivers well-balanced dynamic behavior for demanding servo applications.
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Product Description:
The MRS202A-1N-0096-NNNN is a synchronous motor component produced by Bosch Rexroth Indramat within the MRS Synchronous IndraDyn H Motors series. Designed for servo axes in automated machinery, the unit converts three-phase drive current into controllable torque and speed, allowing coordinated motion in packaging lines, printing presses, and material-handling gantries. Its mechanical interface and magnetic configuration are matched to IndraDrive controllers, so the motor can be integrated directly onto precision gearheads or belt transmissions without additional adaptation. Because it is a synchronous motor component, it relies on controlled commutation from the paired drive to maintain commanded motion across changing loads. This operating approach supports coordinated indexing, speed regulation, and synchronized axis movement in automated equipment.
It includes balancing threads measuring 24 × M6 × 10 mm, which provide mounting points for trim screws when residual vibration must be reduced. The shaft hub is machined with a smooth hole profile, so torque is transmitted through a friction-locked clamping element rather than a keyed interface. Dimensional accuracy of the hub is ensured by a H6 bore fit, which limits radial clearance and helps keep the rotor concentric to the driven shaft. A chamfer set at 30° eases insertion of the clamping sleeve and helps prevent burr formation during assembly. Electromagnetically, the rotor carries 5 pole pairs, so the drive tracks the correct electrical angle for sinusoidal commutation.
The motor’s dynamic response is influenced by its low rotational inertia of 0.05 kg·m², a value that helps shorten acceleration times and reduce control-loop overshoot. The rotor has an inner diameter of 96 mm, allowing the use of large-bore clamping sets for hollow shafts or through-shaft cabling. Despite this opening, the rotor maintains a mass of 12.8 kg, which helps support smooth speed behavior during load changes. An outer diameter of 145.5 mm sets the envelope that must fit inside the motor stator housing. That outside dimension also preserves the intended air gap for efficient magnetic coupling.
