R911288211 (MHD115C-058-NG0-AA)

MHD Synchronous Motors

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The Bosch Rexroth R911288211 (MHD115C-058-NG0-AA) is a synchronous motor with a strong torque to inertia mass ratio and effective heat dissipation from stator windings to housing exterior. It features digital servo feedback, a 371A peak current rating, a quick startup process, and a strong bearing designed for high radial loads. The motor's rated frequency is 67Hz with natural convection cooling and 133Hz with surface cooling. The R911288211 (MHD115C-058-NG0-AA), which offers a theoretical maximum torque of 231Nm, has a 0.95Nm/A torque constant, 0.06 Ohms winding resistance, and 86.4V/1000min-1 voltage constant at 20°C. It is designed to be easily installable in various industrial machines, with specially compliant flange design for quick attachment. The motor can function under adverse conditions, weighs 55kg, and has a power rating of 2.4kW at 60K. In terms of longevity, it offers a bearing service life of 30,000 operating hours, per ISO 281 standards. The product includes a one year warranty.