MRT160C-3N-0080-NNNN Bosch Rexroth Indramat
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The Bosch Rexroth Indramat MRT160C-3N-0080-NNNN is part of the MRT Synchronous IndraDyn T Motors series. This model features a max speed of 3500 rpm with an outer diameter of 115.7 mm, and a rotor bore of 80 mm. It uses screw fixing with M6 fastening threads, has a rotor mass of 4.3 kg, and an IP00 protection code.
Internal Product Review
The MRT160C-3N-0080-NNNN is a Bosch Rexroth Indramat MRT synchronous IndraDyn T motor with screw-fixing mounting and IP00 protection. A 3500 rpm maximum speed and 0.01080 kg·m² rotor inertia give the unit crisp, controlled rotary performance in precision motion systems. Dual-sided threaded fastening adds welcome installation flexibility, making the motor a strong choice for direct-drive applications.
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Product Description:
The MRT160C-3N-0080-NNNN is a rotor component from the MRT Synchronous IndraDyn T Motors series produced by Bosch Rexroth Indramat. As a frameless torque-motor element, it is intended for direct-drive tables, rotary indexing heads, and similar automation axes that demand high continuous torque without mechanical transmission stages. When integrated into a stator kit, the rotor’s permanent-magnet field couples directly to the machine load, eliminating belts or gearboxes and delivering precise position control in CNC machining centers, packaging machinery, and assembly platforms.
It supports a maximum rotational speed of 3500 rpm, allowing high-speed positioning while keeping magnetic losses within thermal limits. The rotor body has an outside diameter of 115.7 mm, giving it a compact footprint that fits standard MRT160 stator laminations. Its central aperture measures 80 mm, allowing power or fluid lines to pass through a hollow shaft. Dynamic behavior is characterized by a polar moment of inertia of 0.01080 kg·m², which balances acceleration capability with torque-ripple smoothing for stable servo loops. The rare-earth magnet stack weighs 4.3 kg, a mass that affects bearing selection and vertical mounting calculations. Because the unit has an ingress protection rating of IP00, it requires installation inside a sealed machine housing or motor enclosure to prevent contact with conductive debris or coolant spray.
The rotor mounts to the machine flange through a standardized screw interface. Each rotor face has M6 threads with a depth of 12 mm, providing secure engagement for compatible fasteners. A total of 12 threaded holes are distributed evenly on a 160 mm pitch circle. The threads are cut into both sides of the rotor, allowing stack orientation or back-to-back coupling without additional adapters. The screw-fixing mounting style allows the rotor to be clamped axially against a hub. This arrangement eliminates the need for a shrink fit and permits removal without applying heat to separate the rotor from the hub.
