MRT530B-3N-0410-NNNN Bosch Rexroth Indramat
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The Bosch Rexroth Indramat MRT530B-3N-0410-NNNN is a rotor for a torque motor in the MRT Synchronous IndraDyn T Motors series. It features a 410 mm internal rotor diameter, a mechanical frame size of 530, and has a rotor mass of 22.0 kg. The rotor is fastened by screws and is designed for an ambient operating temperature range from 0 to 40 °C.
Internal Product Review
The MRT530B-3N-0410-NNNN is a Bosch Rexroth Indramat torque motor rotor featuring screw fastening and a standard version configuration. Thermal integration is well balanced with a 0 to +40 °C ambient operating range and a +5 to +40 °C permissible coolant inlet temperature. A maximum coolant input pressure of 6 bar makes this rotor a strong choice for precision torque motor assemblies.
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Product Description:
The MRT530B-3N-0410-NNNN rotor is produced by Bosch Rexroth Indramat for the MRT Synchronous IndraDyn T Motors series. As the rotating element of a torque motor, it couples directly to machine shafts or tables and delivers continuous torque for position-controlled automation equipment such as rotary indexers. The rotor must be paired with a compatible stator to create a direct-drive system for industrial motion platforms, eliminating the need for mechanical transmission components between the motor and the driven load.
The mechanical frame size is 530, and the internal rotor bore measures 410 mm, providing clearance for large through-shafts or internal cable routing. The rotor has a moment of inertia of 0.92 kg·m², which must be considered when setting acceleration and deceleration rates for rapid positioning cycles. Its mass is 22.0 kg, requiring suitable support during installation and secure mounting within the machine assembly. Screws positioned around the flange attach the rotor to the machine structure and maintain alignment with the matching stator. The IP00 enclosure rating provides no protection against contact, dust, or water, so the host machine housing must enclose the installed motor components. Adequate internal clearances are also necessary to prevent contact between the rotating assembly and surrounding machine parts during operation.
The coolant circuit may be pressurized up to 6 bar after the matching stator and cooling connections are installed. The coolant inlet temperature must remain from +5 to +40 °C so the motor laminations and magnets stay within their permitted thermal range. During operation, the ambient air temperature must remain from 0 to +40 °C to prevent thermal derating and excessive heat buildup around the motor assembly. The permitted storage temperature is -25 to +55 °C, while sealed transport packaging allows short-term exposure from -25 to +70 °C. Coolant connections must be sealed correctly before the circuit is pressurized to prevent leakage into the machine housing. The machine enclosure must also allow sufficient heat removal from surrounding components without obstructing the liquid-cooling circuit or the rotor’s movement.
