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Custom reduction gearboxes can meet your application's needs. Does your application call for small right angle gearing that packs a big punch?The Spiroid family of gears consists of two trademarked brands, Spiroid® and Helicon®. This type of gearing, often referred to as “skew axis gearing”, operates on non-intersecting and non-parallel axes. Our designs are produced with contemporary software, tooling, and methods developed by ITW.