MRT531L-3N-0410-NNNN Bosch Rexroth Indramat
Wake Industrial LLC is not an authorized distributor of this product.
MPN: R911341130
The Bosch Rexroth Indramat MRT531L-3N-0410-NNNN is a rotor of a torque motor, part of the MRT Synchronous IndraDyn T Motors series. It features a mechanical frame size of 531, an internal rotor diameter of 410 mm, and has a rotor mass of 130 kg. The rotor provides a radial attractive force of 13770 N and is fastened by 40 M10 screws, with an IP00 degree of protection.
Internal Product Review
The MRT531L-3N-0410-NNNN is a torque motor rotor in the Bosch Rexroth IndraDyn T line, configured in mechanical frame size 531. Fixing per screws and 40 rotor fastening holes give the assembly a secure, installation-friendly mechanical interface. Rotor inertia of 5.8 kg·m² and radial attractive force of 13770 N highlight impressive torque-handling potential.
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Product Description:
The MRT531L-3N-0410-NNNN is a rotor supplied by Bosch Rexroth Indramat for the MRT Synchronous IndraDyn T Motors series. It is the rotating element of a direct-drive torque motor designed for use with MBT torque motors, and it delivers high continuous torque when paired with a liquid-cooled stator. The component is manufactured in a standard version and is installed with screw fasteners inside machinery that requires backlash-free rotary motion. Suitable applications include positioning tables, printing cylinders, and similar high-precision rotary axes.
With a mechanical frame size of 531, the rotor has an inner diameter of 410 mm, allowing it to fit over large hollow shafts. The steel and magnet assembly weighs 130.0 kg and has a moment of inertia of 5.8 kg·m², which must be considered when setting acceleration and deceleration profiles. Magnetic coupling to the stator creates an axial attractive force of 565 N, so the thrust bearings must accommodate this constant load. The unit operates in ambient temperatures from 0 °C to +40 °C and has an IP00 protection rating, so the surrounding machine enclosure must protect it from contact, debris, and moisture. Storage is permitted at temperatures as low as -25 °C, while the upper transport temperature is +70 °C.
Radial magnetic pull reaches 13770 N, which must be considered when selecting the housing bore and support bearings. Mechanical retention is provided by 40 equally spaced holes tapped to M10. Each mounting hole is 20 mm deep and accepts a screw that secures the rotor to the driven hub. Cooling circuits connected to the companion stator may carry water or a water-glycol mixture at pressures up to 6 bar. The coolant inlet temperature must remain between +5 °C and +40 °C to provide effective heat removal while reducing the risk of condensation. During handling and transport, the rotor must remain dry and protected from impacts that could damage the magnet assembly or mounting surfaces.
