Precision ground gears are manufactured by using abrasive tires to grind a gear blank to match the desired gear style. These versatile gears are better suitable for use with good instrumentation and additional small-scale elements, and in high precision applications.
More accurate finish: Precision ground gears Ground Helical Gear Racks include a more exact tooth complete than machined or cut gears, which provides better, smoother meshing of gear teeth for more controlled operation.
More material options: While machining, stamping, and other manufacturing processes may limit material options, nearly any metal or alloy could be made into a gear via grinding.
Higher loads & better performance: Due to how they’re manufactured, surface gears are generally in a position to handle higher loads and higher stresses than gears produced via various other means. Ground gears are especially useful in applications that want huge amounts of torque.Because of these unique advantages, in most applications, precision surface gears may outperform gears produced through other means. Floor gears deliver smoother efficiency and greater longevity.
Bevel Equipment – Bevel gears, sometimes just known as bevels, are cone shaped gears made to transmit motion between intersecting axes. They are usually installed on shafts that are 90 degrees apart, but can be designed for nearly any position. Another related term you may here is miter gear, which is a type of bevel gear in which the mating pairs have the same amount of teeth.
Ground Gear – Ground gears are made by the manufacturing procedure for gear grinding, also called gear tooth grinding. Equipment grinding produces high precision gearing, so ground gears are capable of meeting top quality requirements (AGMA, DIN, JIS or ISO) than cut gears. Gear grinding is particularly effective when gears distort through the heat treat process and tooth forms no longer satisfy drawing requirements. Both spur and helical gears can be produced using this method.
Helical Gear – While the teeth 
upon spur gears are cut directly and mounted parallel to the axis of the gear, the teeth upon helical gears are cut and ground upon an angle to the face of the gear. This enables the teeth to activate (mesh) more gradually so they operate more smoothly and quietly than spur gears, and can usually carry a higher load. Helical gears are also called helix gears.