MRT360E-3N-0260-NNNN Bosch Rexroth Indramat
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The Bosch Rexroth Indramat MRT360E-3N-0260-NNNN is part of the MRT Synchronous IndraDyn T Motors series. It features a 260 mm internal rotor diameter, has a rotor inertia of 0.436 kg·m², and has an ingress protection rating of IP00. The motor weighs 24 kilograms and the rotor is attached by screws using sixteen M8 fasteners.
Internal Product Review
The MRT360E-3N-0260-NNNN is a Bosch Rexroth Indramat synchronous torque motor with clean direct-drive engineering for precision rotary axes. Screw-mounted rotor attachment and a large internal rotor diameter support confident integration in high-torque rotary systems. IP00 construction and 0.436 kg·m² rotor inertia make the motor a strong fit for controlled cabinet installations and stable rotary performance.
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Product Description:
The MRT360E-3N-0260-NNNN is a frameless torque-motor rotor supplied by Bosch Rexroth Indramat within the MRT Synchronous IndraDyn T Motors series. Designed for direct integration into rotary tables or indexing spindles, the unit delivers continuous, cog-free torque for precise positioning tasks in industrial automation. The laminated steel core carries permanent magnets optimized for low cogging and high torque density, supporting smooth operation in CNC rotary axes and indexing stations used in packaging, machining, and automated inspection.
The magnetic interface of this rotor develops an axial attractive force of 370 N, a load that must be countered by the host bearing arrangement to avoid unplanned preload. In the radial plane it draws 3190 N, influencing bearing selection and housing stiffness. A clear internal bore of 260 mm allows fluid lines or mechanical services to pass through the center without extra couplings. System acceleration is governed by the mass moment listed at 0.436 kg·m²; the drive must supply enough current to overcome this inertia during rapid indexing. The open construction carries an IP00 rating, so it relies on the surrounding machine enclosure for contamination control and cooling airflow.
Mechanical integration is handled with 16 evenly spaced mounting points that clamp the laminated stack to the hub. Each interface uses metric threads cut to M8 × 18 mm depth, giving uniform preload while keeping hardware size moderate. The rotor is secured to the spindle flange by screws, a method that simplifies service because no shrink-fit or adhesive bond is involved. Finally, a transported mass of 24 kg must be supported during installation tooling design and during dynamic loading calculations for vertical axes, so handling fixtures can be sized appropriately.
