The pitch surface of a gear is the imaginary toothless surface that you would have by averaging out the peaks and valleys of the individual teeth. Two important concepts in gearing are pitch surface and pitch angle. Bevel ring gear on the rear wheel of a shaft-driven bicycle Spiral bevel gear Introduction Regardless of the operating angle, the gear axes must intersect (at the point O) Bevel gear lifts floodgate by means of central screw. Bevel gears transfer the energy from linear to vertical power, making it very useful in machines widely used in mechanical settings.īevel gear on roller shutter door. The pitch surface of bevel gears is a cone, known as a pitch cone. Bevel gears are most often mounted on shafts that are 90 degrees apart, but can be designed to work at other angles as well. JSTOR ( January 2020) ( Learn how and when to remove this template message)īevel gears are gears where the axes of the two shafts intersect and the tooth-bearing faces of the gears themselves are conically shaped.Unsourced material may be challenged and removed. Please help improve this article by adding citations to reliable sources. This article needs additional citations for verification.