Delivering precise positioning capabilities to <0.00004 in., hollow core voice coil or moving coil linear motors comes in 23 standard sizes with 0.125–2.000 in. open apertures, 5 standard ODs from 0.625–3.750 in., and 0.125–2.500 in. stroke lengths. Hollow core of these non-commutated motors allows pass through of optics, illumination, laser beams, or cables. While continuous force ratings range from 5.0 oz to 16.3 lb, peak force ranges from 15.7 oz to 51.5 lb at 10% duty cycle.