Finally, we also control the quality of every component and each step in the manufacturing process. A dedicated team of customers, engineers, quality inspectors and machine operators works night and day to make sure each component fulfills the stringent irrigation gearbox Valley quality requirements. Because our suppliers are positioned in the United States, we can simply perform random inspections of their services to make sure they are conference our quality specifications. All major elements are also machined by Valley, providing a second quality level control. Your final inspection is conducted by testing each gearbox before it is shipped. And, to help expand make certain 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 output seal to keep essential oil in and problems out. To compensate for this longer shaft, particular wheels are used that actually move the guts of the tire closer to the gearbox output bearing compared to the industry regular, reducing the load on the gearbox.
Valley also uses U.S.-made, case-hardened bearings made from ultra-pure steel instead of through-hardened Chinese bearings used by others. Case-hardening provides excellent wear characteristics while maintaining the internal toughness of the core material. Because of this, Valley bearings have a 40 percent greater load rating.
The Valley gearbox also offers a 52:1 gear ratio. This means the gearbox uses 4 percent much less energy to move the device through the field, but, more importantly, the design includes a fully recessed tooth actions. With a completely recessed style, the gears maintain lubrication oil between the gears longer, reducing friction for increased load capacity and longer life.