1MR310F-A112/S022
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MPN: R911247054
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The 1MR310F-A112/S022 spindle motor has a rated power of 30 kW, operates at 380 V with 47 A, features liquid cooling, and weighs 145 kg. As part of the 1MB High-Speed Asynchronous Motors series by Bosch Rexroth Indramat, it includes IP54 protection and an incremental encoder for precise performance.
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Product Description:
Bosch Indramat designs the 1MR310F-A112/S022 rotor for the 1MB series of servo motors. It is specially made for turning, milling and grinding applications where the demands are high rigidity and precise torque delivery. The rotor has a total length of 400 mm and an internal shaft fitting length of 312 mm.
The 1MR310F-A112/S022 rotor is designed with a rotational inertia of 0.723 kg·m² and a mass of 95 kg. It has a major bore D1 with a diameter of 112 mm and a minor bore D2 with 111.8 mm of diameter, both possess the H6 tolerance to provide a positive and precise fit of the spindle. The intermediate bore D3 is 113 mm and the axial bore area D4 is 112.2 mm which assures adequate support and seating when it is mounted. The rotor has an outer thickness of 228.7 mm with a manufacturing tolerance of 0.05 mm whereas it is intended to be an interference fit in the stator. The 1MR310F rotor features a maximum mechanical speed of 8000 RPM and has a winding resistance of 0.363 Ω as well as an inductance of 4.753 mH at 20 °C. This 1MR310F rotor has a threaded M6 hole to connect pressure oil and for balancing the threaded holes M10 they are provided to take DIN 913 pins for facilitating accuracy when being attached to the spindle.
The 1MR310F-A112/S022 rotor has a keyway portion of 26 mm in length and the assembly of threaded areas is sealed with LOCTITE 620. It tolerates an axial runout not more than 0.04 mm after installation. This 1MR310F rotor runs in a liquid-cooled mode of the motor with the stator doing the heat dissipation. It can deliver 480 Nm of turning effect in normal operating conditions.
Frequently Asked Questions about 1MR310F-A112/S022:
Q: How does the H6 tolerance of the bores benefit the 1MR310F-A112/S022 rotor?
A: The H6 tolerance ensures a tight and precise fit between the rotor and spindle, minimizing vibration and enhancing torque accuracy during high-speed operations.
Q: Why is LOCTITE 620 used in the threaded assembly of the 1MR310F-A112/S022 rotor?
A: LOCTITE 620 offers high thermal resistance and strong adhesive bonding, securing threaded areas under constant mechanical stress and elevated operating temperatures.
Q: What role does the keyway portion play in the 1MR310F-A112/S022 rotor?
A: The 26 mm keyway ensures proper torque transmission and axial alignment, reducing mechanical slippage during dynamic load changes.
Q: How does the 0.723 kg·m² inertia affect the performance of the 1MR310F-A112/S022 rotor?
A: This specific inertia value allows for optimal response in acceleration/deceleration cycles, improving servo control in precision machining tasks.
Q: What advantages does the liquid-cooled mode offer in the 1MR310F rotor?
A: Liquid cooling in the 1MR310F-A112/S022 rotor enhances heat dissipation, allowing continuous high torque operation without overheating.
