1MR140H-A045

The Bosch Rexroth Indramat 1MR140H-A045 rotor is a precision component within the 1MB High-Speed Asynchronous Motors series. This model features a Motor Size 140, an Inside Diameter of Rotor 45 mm, and a Motor Length H to ensure compatibility with frameless main spindle assemblies. Designed as the rotating element in an asynchronous high-speed motor, it delivers the primary function of converting electrical input into smooth, turbulence-free rotary motion when paired with the appropriate stator. Its compact dimensions and engineered fit are optimized for installations where space and dynamic performance are critical.

In terms of technical specifications, the 1MR140H-A045 rotor provides a rated power output of 10.5 kW at a nominal speed of 3000 rpm and develops a rated torque of 34 Nm. The stator winding demonstrates a resistivity of 0.981 Ω, ensuring controlled current flow and minimal energy loss. For thermal management, it operates reliably in ambient temperatures from 0 °C to +40 °C, while safe handling and transportation are ensured within –20 °C to +80 °C. The rotor is insulated to Class F standards, offering robust protection against thermal stress, and is supplied packaged in Styrofoam half-shells to maintain precise alignment and prevent physical damage during shipment.

Additional features highlight the component’s compatibility and durability. Weighing 7.3 kg, the 1MR140H-A045 rotor integrates seamlessly with a 4B winding stator to form a complete frameless asynchronous motor, supporting high-speed applications up to 3000 rpm. Its insulation class F rating and ability to run in moist environments underscore its resilience in challenging operating conditions. The carefully controlled geometry ensures minimal vibration and extended service life, while the standardized dimensions simplify installation and maintenance. In industrial settings, this rotor enhances overall system efficiency, offering reliable high-speed performance and long-term operational stability.