Meeting the generator requirements of a railroad signaling application, the DIH18-21-BBNA brushless generator can withstand the consistently high shock and vibration levels typical of a railcar environment. Measuring 1.8" in diameter and 2.1" in axial length, the generator provides a constant 40-Vdc output at speeds of 11,000 rpm. It employs patented bearing suspension technology to absorb the vibration and shock associated with the application. Additionally, its robust one piece housing eliminates vulnerable attachment points. BEI KIMCO MAGNETICS, Vista, CA. (800) 572-7560.