1MR310B-A112

The Bosch Rexroth Indramat 1MR310B-A112 from the 1MB High-Speed Asynchronous Motors series features a motor size of 310 complemented by a motor length B and a rotor design with step interference fit for high-precision performance. This high-speed kit spindle rotor generates a rated torque of 260 Nm while drawing a rated current of 58–75 A, achieving shaft speeds between 1760 and 4000 rpm. Its compact frameless design fits seamlessly into 1MB stators and adapts to customer-specific configurations without sacrificing rotor integrity or mechanical stability. Robust construction and optimized thermal characteristics ensure consistent output even under demanding C-axis and threading operations.

Integration versatility is delivered through compatibility with three stator variants (6B, 6D, and 6E), each influencing the rotor’s power output, which ranges from 12 to 27 kW depending on stator selection. The unit must be mounted within a motor featuring an inside diameter of 112 mm, ensuring precise step interference fit engagement. Operating within an ambient temperature range of 0 to +40 °C and protected by class-F insulation, the rotor maintains reliable performance across typical industrial climates. A one-year warranty underscores Bosch Rexroth Indramat’s commitment to quality and provides peace of mind when integrating this rotor into direct-drive spindle motors.

Ideal for direct-drive spindle assemblies, the 1MR310B-A112 supports high-acceleration C-axis positioning, threading cycles, and precision machining tasks. Installation and commissioning require trained personnel and may involve supplementary sensors or feedback devices to achieve closed-loop control. Offered through Wake Industrial with a full one-year warranty, this rotor balances high torque density, rapid response, and configurability for modern manufacturing environments.