Product Description:

The MRT160A-3N-0080-NNNN is a rotor module produced by Bosch Rexroth Indramat for the MRT Synchronous IndraDyn T Motors series. Configured as the rotating element of an MBT platform torque motor, it works with a liquid-cooled stator to deliver direct, high-torque motion for indexing tables, printing cylinders, and winding stations in industrial automation. The direct-drive configuration eliminates mechanical gear stages, allowing precise positioning and low-speed operation while keeping drivetrain backlash near zero. This performance supports repeatable motion in synchronized multi-axis processes and during continuous-duty operation.

The rotor is supplied in the standard version with a mechanical frame size of 160, matching the corresponding stator housing. Its internal bore measures 80 mm, so it fits directly over the machine shaft without additional bushings. The maximum permissible rotational speed is 3500 rpm, supporting rapid positioning moves without exceeding the rotor’s operating limit. Liquid cooling through the stator supports a feed pressure of up to 6 bar, helping maintain the magnet temperature below demagnetization limits. Because the assembly has an open protection rating of IP00, the surrounding machine must provide guards against splashes, debris, and accidental contact.

The coolant must enter at a temperature between +5 and +40 °C. Staying within this range helps prevent condensation and protects the adhesive joints that secure the magnet rings. Ambient air around the motor may remain within 0 to +40 °C during operation, while storage temperatures down to -25 °C and transport temperatures up to +70 °C are permitted. A rotational inertia of 0.0059 kg·m² supports fast acceleration profiles, and an overall rotor mass of 2.4 kg helps keep bearing loads moderate. Screws secure the hub to the drive shaft, providing a rigid mechanical connection and repeatable positioning after removal and reinstallation. The standard version does not require special balancing.