Gears are available in all shapes and sizes; there are spur gears, helical gears, worm, bevel, hypoid sets and a lot more. Lubrication performs no small component while in the purpose and longevity with the devices. STP® Oil Treatment for Gearboxes is intended to lubricate difficult-to-get to parts including gearboxes, https://gearbox-oil-treatment53321.oblogation.com/33318039/the-definitive-guide-to-gearbox-oil-treatment