Finally, we also control the quality of every component and each step in the manufacturing process. A dedicated team of buyers, engineers, quality inspectors and machine operators works day and night to make sure each component meets the stringent Valley quality requirements. Because our suppliers are positioned in the United States, we can simply perform random inspections of their facilities to make sure they are meeting our quality standards. All major parts are also machined by Valley, providing another level of quality control. A final inspection is performed by examining each gearbox before it is shipped. And, to help expand ensure Valley quality, randomly selected gearboxes are life-tested inside our gearbox testing laboratory.
But, even the very best gear design and materials won’t help if the gearbox isn’t sealed from the elements. That’s why Valley uses a patented six-barrier insight and nine-barrier result seal to keep essential oil in and complications out. To compensate for this longer shaft, unique tires are used that truly move the center of the tire nearer to the gearbox result bearing compared to the industry regular, reducing the strain on the gearbox.
Valley also uses U.S.-made, case-hardened bearings created from ultra-pure steel rather than through-hardened irrigation gearbox Chinese bearings utilized by others. Case-hardening provides superior wear characteristics while maintaining the inner toughness of the core material. Consequently, Valley bearings possess a 40 percent higher load rating.
The Valley gearbox also has a 52:1 gear ratio. This implies the gearbox uses 4 percent much less energy to move the device through the field, but, moreover, the design has a fully recessed tooth actions. With a completely recessed style, the gears keep lubrication oil between the gears longer, reducing friction for improved load capability and longer life.