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Machine Design

Brushless dc motor - maxon precision motors Inc.

 The brushless EC 25 dc motor is designed for high-speed applications up to 70,000 rpm and has low-vibration characteristic and minimized scale. Equipped with preloaded ball bearings and a two-pole neodymium permanent magnet, the motor measures at Ø25 × 84 mm, is rated for 36-Vdc nominal voltage, reaches 42.2-mNm torque, and 61,600 rpm with efficiency above 93%. The motor-specific speed/torque gradient amounts to 44.9 rpm/mNm.
The motor is suitable for high-speed spindle-driven applications, such as those used in medical technology (surgical power tools, dental drills, etc.) or machine tools (manufacture of optical lenses, fabrication of printed circuit boards, etc.).
maxon precision motors Inc., 101 Waldron Rd., Fall River, MA 02720, (508) 677-0520,

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