Module Number
Herringbone Slew Bearing
Double Helical Bevel Gear
ouble helical bevel gears, or herringbone bevel gears, are ideal for a wide range of applications that require smooth, reliable rotational movement, such as lazy susans, telescopes, and industrial machinery. These gears offer significant advantages in terms of load capacity, quiet operation, and the elimination of axial thrust, making them an excellent choice for heavy-duty and precision mechanisms. A key feature of this design is that the gear bearings stay at equal distances apart, which removes the need for a bearing cage and reduces maintenance. Additionally, herringbone bevel gears have a unique, self-centering characteristic due to the opposing helix angles, which further enhances stability and load handling.
While their complex geometry once made them challenging to manufacture, advancements in 3D printing have made it easier and more efficient to produce these gears, broadening their accessibility for various projects.
André Citroën, the founder of Citroën, was a pioneer in the mass production of herringbone gears in the early 20th century. His interest in these gears began when he acquired a patent for a herringbone gear manufacturing process.
The distinctive double-chevron logo of Citroën symbolizes a pair of interlocking herringbone gears, reflecting the company's foundational technology.
Wide-Diameter Slewing Bearings
Versatile Usage: Ideal for mechanisms requiring large, smooth rotational movement.
Examples Include:
Lazy Susans: Provides stable and effortless rotation for tables, displays, and storage solutions.
Telescopes: Enables precise, controlled movement essential for accurate astronomical observations.
Industrial Machinery: Suitable for equipment where reliable rotation is critical under heavy loads.
Benefits Across Various Projects
High Load Capacity: Even force distribution allows handling substantial weights without compromising performance.
Smooth and Quiet Operation: Rolling action reduces noise and vibration, essential in settings where these factors are critical.
Efficiency and Durability: Reduced friction and heat lead to longer-lasting components and energy savings.
My files on Patreon include both a full, single-piece version and a version of the bearing split into four equal parts for easier 3D printing on smaller build volume printers. This flexibility allows makers to tackle the project no matter their printer size. Your support on Patreon not only grants you access to these files but also directly aids the development of more practical, accessible designs. Thank you for supporting this project!
OTF PARTS
M5 Wood Screws
Specs
Inner Diameter 109mm
Outer Diameter 175mm
Total Height (Two Plates and Roller) 44mm
File Download:
Quarter Circular Plate
Full Plate
Rollers