8MSA4M.E3-67
The B & R Automation 8MSA4M.E3-67 from the 8MS Three Phase Synchronous Motors series is a precision-engineered hub-mounted synchronous motor gear delivering high dynamic torque and ultra-low inertia for demanding industrial automation applications. Featuring a gear module of 4, a bore diameter of 42 mm, and a face width of 36 mm, this unit is manufactured from case hardened steel with a hardness of 58-62 HRC in compliance with DIN 3962. With an outer diameter of 276 mm, a pitch circle diameter of 268 mm, and 67 involute-profile teeth at a 20° pressure angle, the assembly supports speeds up to 12,000 rpm across an operating temperature range of -20°C to +80°C. The hub mounting ensures straightforward integration, and the 18.7 kg rotor is optimized for natural convection cooling and chemical resistance, making it robust in harsh environments.