Hypoid gearboxes
Introduction
Hypoid gearboxes[1][2] are gearboxes having axes that are non-intersecting and not parallel. The hypoid gearboxes are a subcategory of sprial bevel gearbox[3] with the axes of gears at an offset from one another. In comparison to the conical geometry of a spiral bevel gear, the basic geometry of hypoid gear is hyperbolic. The spiral angle of the pinion is larger than the spiral angle of the gear in a hypoid gearbox, so the pinion diameter can be larger that of a bevel gear pinion. This helps in attaining an enhanced contact surface and a better tooth strength which allows for higher gear ratios and scope of higher torque transmission[4]. Bearings can also be used on both sides of gears for extra rigidity as the offset between the axes allows the scope for extra support.
Applications
Hypoid gearboxes are used in the rear axles of large trucks.
References
- ^ http://www.ceb.ac.in/knowledge-center/E-BOOKS/Manual%20Gearbox%20Design%20-%20Alec%20Stokes.pdf "Manual Gearbox Design" Publisher: Butterworth-Heinemann (13 March 1992) ISBN 978-0-75060-417-8 pages 40-49
- ^ https://www.globalspec.com/learnmore/motion_controls/power_transmission/gears/hypoid_gears "IEEE GlobalSpec's Engineering360"
- ^ https://www.sciencedirect.com/book/9781782421948/international-gear-conference-2014-26th-28th-august-2014-lyon#book-description "International Gear Conference 2014: 26th–28th August 2014, Lyon" ISBN 978-1-78242-194-8 pages 107-117
- ^ https://www.sciencedirect.com/book/9780128044605/advanced-gear-manufacturing-and-finishing "Advanced Gear Manufacturing and Finishing- Classical and Modern Processes" ISBN 978-0-12-804460-5 pages 1-33