MRT530L-3N-0410-NNNN Bosch Rexroth Indramat
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MPN: R911305058
The Bosch Rexroth Indramat MRT530L-3N-0410-NNNN is part of the MRT Synchronous IndraDyn T Motors series and features an internal rotor diameter of 410 mm. This open kit motor weighs 125 kilograms and has a mounting radial force of 14560 Newtons. It offers IP00 protection and a rotor inertia of 5.78 kg·m².
Internal Product Review
The MRT530L-3N-0410-NNNN is a Bosch Rexroth Indramat MRT synchronous IndraDyn T motor with an open kit design and IP00 protection for controlled installation environments. From a technical standpoint, the 14560 N mounting radial force and 5.78 kg·m² rotor inertia support stable mechanical integration and smooth direct-drive behavior. A strong choice for precision axis applications where mechanical capacity is a priority.
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Product Description:
The MRT530L-3N-0410-NNNN is a frameless torque motor produced by Bosch Rexroth Indramat for the MRT Synchronous IndraDyn T Motors series. Supplied as a rotor-stator kit, it is designed for direct integration into rotary tables, printing cylinders, and indexing heads that require high continuous torque without gear reduction. Embedding the active components within the machine structure allows the motor to provide precise low-speed positioning while minimizing mechanical compliance. The direct-drive arrangement also removes transmission components that could otherwise introduce backlash into positioning movements.
An internal rotor clearance of 410 mm accommodates large through-bores for process shafts, cables, piping, or other machine utilities. During assembly, the hub can withstand a mounting radial force of 14,560 N while maintaining the magnetic air gap. Because the unit is supplied without an enclosure, it has an IP00 protection rating and requires suitable external guarding in dusty or humid locations. The rotor inertia is 5.78 kg·m², which helps smooth velocity ripple but increases the current required during acceleration. The complete kit has a mass of 125 kg, so its weight must be considered when selecting lifting equipment, mounting structures, and support fixtures. Correct support during installation also helps prevent unintended loading on the rotor and stator components.
The frameless configuration uses an open kit-motor design, allowing heat to conduct directly into the surrounding machine bed. Under normal operating conditions, the bearings can withstand a continuous radial force of 6,840 N without reducing their expected service life. The face-plate mounting pattern consists of 40 threaded holes distributed around the motor. Each hole has an M10 thread with a depth of 20 mm, providing sufficient engagement for secure attachment to the machine structure. The distributed mounting points apply clamping force evenly around the lamination stack and help preserve alignment under high torque. The machine bed must provide an appropriate heat-transfer path because the open motor does not include a separate housing for thermal dissipation.
