MRS160E-B061-NN Bosch Rexroth Indramat
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The Bosch Rexroth Indramat MRS160E-B061-NN is a rotor from the MRS Synchronous IndraDyn H Motors series with a motor frame size of 160 and an open kit motor design. It has an insulation class F, a protection rating of IP00, and is designed for operation within an ambient temperature range of 0 to 40°C. The rotor features a 61 mm inner diameter and supports installation at altitudes up to 1000 meters.
Internal Product Review
The MRS160E-B061-NN is an IndraDyn H synchronous spindle motor rotor with an open kit motor design. IP00 protection and Class F insulation make the unit a strong technical fit for controlled machine environments requiring dependable thermal performance. A connection cable interface supports straightforward integration, and the 0-40°C ambient rating highlights practical operating capability.
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Product Description:
The MRS160E-B061-NN rotor is produced by Bosch Rexroth Indramat for the MRS Synchronous IndraDyn H Motors series. As the rotating component in a synchronous spindle assembly, it interacts with a stator to convert electromagnetic fields into mechanical torque. The unit is supplied in kit form so it can be integrated directly into custom housings for high-speed machining centers and other automation platforms. Its design prioritizes low inertia and thermal compatibility with liquid-cooled stator segments, supporting responsive spindle operation within a compact assembly.
With a motor frame size of 160, the rotor aligns with stators that share the same diameter envelope and mounting pitch. A rotor inner diameter of 61 mm leaves clearance for clamping shafts, through-spindle coolant pipes, or sensor wiring. The mechanical layout follows an open kit-motor design, meaning the magnetic stack is delivered without an external housing so it can be pressed into a customer-supplied shaft tube. Thermal endurance is supported by class F insulation, allowing the insulation system to tolerate temperatures up to 155 °C without degradation. Because the rotor has an ingress protection rating of IP00, it relies on the surrounding motor enclosure for protection and must be installed where exposure to dust and fluids is controlled.
Ambient operating temperatures range from 0 to 40 °C, so forced cooling or reduced output may be required if the spindle operates in hotter conditions. Installation is permitted at elevations up to 1000 m above sea level before additional voltage or cooling adjustments become necessary. The component may be stored at temperatures as low as -20 °C and can withstand storage temperatures up to 60 °C. During transit, short-term temperature exposure can reach 80 °C, provided humidity remains moderate. These limits help protect the rotor magnets, bonding materials, and other temperature-sensitive components during operation, storage, and transportation.
