The GM series (High Precision Compact Series) is an extremely accurate high power pancake motor range with possible high ambient temperature (150C, 302F) operation, for high performance industrial applications. The range is available in 9cm, 12cm and 16cm armature diameter sizes, with standard and high power AlNiCo magnet options. Additionally, through our special build scheme every motor in the GM series is available as a low resistance, i.e. parallel ‘winding’ (designated LR) motor perfectly suited for low voltage, battery or higher speed applications. Historically this motor has been popular across high-end servo applications requiring a compact motor with perfect control. The GM series is often a straight drop-in replacement for older U-series, S-series and Platinum series servo motors from PMI Kollmorgen.