12MR to 15MR Series

National Times largest series clock mechanisms. Welded plate steel housings are CNC bored for precise shaft alignment and smooth operation required for clocks this size. These mechanisms support hands for dial sizes to 50' in diameter and also utilizes our reliable heavy duty worm / worm gear drive technology. In addition, all shaft bearing surfaces are outfitted with enclosed ball bearings. Hands can be advanced with continuous drive advancement or impulsed each minute depending on the end users preference. Both are achieved with the use of a 115VAC 50Hz or 60Hz synchronous high torque gear motor. This series unit can be outfitted with collector rings to power neon transformers located on each hand allowing neon outlining. Hands are balanced for the additional weight of the transformers and the neon is provided locally.  

Product Specs