MRS162J-1N-0068-NNNN Bosch Rexroth Indramat
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The Bosch Rexroth Indramat MRS162J-1N-0068-NNNN is part of the MRS Synchronous IndraDyn H Motors series. This open kit motor features IP00 protection and supports a maximum installation altitude of 1000 meters. It can operate in ambient temperatures from 0 to 40°C and withstands a demagnetization temperature of up to 300°C for 30 minutes.
Internal Product Review
The MRS162J-1N-0068-NNNN is an open kit synchronous motor with IP00 protection, well suited for protected integrated machine assemblies. An operating ambient range of 0 to 40 °C and a maximum installation altitude of 1000 m support dependable performance in standard industrial settings. Thermal stability rated for 300 °C over 30 minutes is a particularly strong specification.
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Product Description:
The MRS162J-1N-0068-NNNN is a frameless stator-rotor assembly manufactured by Bosch Rexroth Indramat for the MRS Synchronous IndraDyn H Motors series. As a kit motor, it is intended to be pressed or bonded directly into the surrounding machine structure, which reduces the space and weight associated with a separate motor housing. When paired with a suitable servo drive and position sensor, the unit delivers controlled electromagnetic torque for indexing tables, spindle drives, and compact rotary axes in automated production equipment. Because the active parts are installed directly into the machine, alignment of the air gap and support of the rotating mass must be provided by the host assembly rather than by a finished motor frame.
The motor carries a protection classification of IP00, meaning it has no native enclosure and must be installed inside a clean, user-provided housing. Its open kit motor design eliminates endbells and bearings, so mechanical support and cooling must come from the surrounding machine structure. Continuous ratings remain valid up to 1000 m above sea level; beyond that height, reduced air density requires derating. The specified operating envelope spans from 0 °C to 40 °C, which keeps the magnetic system and winding insulation within normal operating conditions. Within this temperature range, heat can be removed through a liquid-cooled mounting structure or by forced air when the installation provides sufficient thermal transfer.
The permanent-magnet stack resists field collapse until a junction temperature of 300 °C, and demagnetization is expected only after sustained exposure for 30 min at that extreme. Axial preload on the bearing system must accommodate up to 310 N of magnetic pull, while radial loading can reach 1973 N during peak torque events. Proper support of these forces helps maintain air-gap concentricity, reduces the risk of rotor-to-stator contact, and supports accurate motion over repeated operating cycles.
