Profile: Robertson Mfg. Co., Inc. manufactures racks and custom & special gears. Our product line comprises of helical, spur, internal, worm, cluster, coarse pitch, external teeth, cut, ground, heat-treated and hobbed & shaped gears. We deliver cast iron, forged steel, stainless steel, plastic and nylon. Our power transmission products include shafts, synchronous belt pulleys, special sprockets & ratchets. We supply gear cutting, inspection, sawing, broaching and drilling services. Our inspection equipment includes vernier calipers, snap gages, dial bore gages and illitron gear tester.