Spiroid's skew-axis, high torque gears enable world-class power density.

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.

The Spiroid family of gears is designed exclusively for right angle power transmission where high torque is required from a small gear set envelope. A variety of materials can be used including steel, brass, aluminum bronze, forgings, powder metal, and plastic (either molded or cut). Typical features include: high torque capability, high stiffness, quiet operation, compact and lightweight design, and easy assembly. Ratios are available ranging from 3:1 to more than 400:1.

The offset from the gear centerline allows our gearing to maintain more tooth surface to be in contact at any time, thus increasing the contact ratio. By increasing the contact ratio, higher torque capacity is generated and motion transmission is smoother.

Key Characteristics

• Simple and positive backlash control – zero backlash in certain cases
• Right or left-hand gear orientation
• Bi-directional driven gears
• Adjustable mounting distance based on assembly variation
• High accuracy for precise positioning or indexing and constant velocity
• High reduction ratios
• Superior shock strength
• High torque capability in relationship to gear set size
• Quiet operation
• Material options for the gear desired
• Compact and lightweight
• High stiffness
• Design flexibility to meet the application requirements rather than developing the gearing method

For more information or white paper access, visit: www.spiroidgearing.com/case-studies-white-paper-data-sheet/