MRT450D-3N-0350-NNNN Bosch Rexroth Indramat
Wake Industrial LLC is not an authorized distributor of this product.
MPN: R911306196
The Bosch Rexroth Indramat MRT450D-3N-0350-NNNN is part of the MRT Synchronous IndraDyn T Motors series, designed as an open kit motor with a screw fixing mounting style and twelve mounting holes. This motor features an internal rotor diameter of 350 millimeters, an axial attractive force of 480 Newtons, and a radial attractive force of 2480 Newtons. The rotor has a mass of 17.9 kilograms and a rotor inertia of 0.64 kilogram-square meters.
Internal Product Review
The MRT450D-3N-0350-NNNN is an MRT synchronous IndraDyn T kit motor featuring an open motor design and screw fixing for clean mechanical integration. IP00 protection and 12 mounting holes support controlled installation and secure assembly in engineered drive systems. A 2480 N radial attractive force stands out as a strong performance characteristic for demanding direct-drive applications.
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Product Description:
The MRT450D-3N-0350-NNNN is a torque-optimized rotor component supplied by Bosch Rexroth Indramat within the MRT Synchronous IndraDyn T Motors series. As an open kit motor, the rotor is delivered without a housing so it can be built directly into high-precision turntables, indexing heads, or ring-shaped actuators where space and stiffness are critical. When integrated into a direct-drive assembly, it couples with the magnetic field from a stator to generate controlled rotary motion for industrial automation. This arrangement eliminates intermediate mechanical transmission components and supports responsive torque transfer between the motor and the driven machine axis.
The rotor’s electromagnetic forces have been characterized for design calculations. Axial attraction reaches 480 N, while radial attraction peaks at 2480 N; adjacent bearings and air gaps must accommodate the resulting preload. Dynamic behavior is influenced by a rotor inertia of 0.64 kg·m², enabling stable speed regulation during rapid torque changes. The laminated stack forms an internal rotor diameter of 350 mm, allowing large through-bores for cables or process media. The rotor has a mass of 17.9 kg, which reduces the load on handling equipment during installation while providing the magnetic mass needed for continuous torque output.
The mounting interface uses a metric fixing thread of M8 in each of the twelve tapped holes. Each thread has a depth of 18 mm, permitting uniform clamping to faceplates or flanges. The pattern contains 12 equally spaced holes and uses screw fastening to simplify concentric alignment inside the host machine. Because the unit follows an open kit design, it has an ingress protection rating of IP00, so the surrounding enclosure must provide all necessary protection against dust, moisture, and accidental contact. The open installation also requires the host machine to provide appropriate structural support, bearing alignment, and clearance around the rotor. Airflow for stator cooling must remain unobstructed after the rotor is secured within the final assembly.
