12/29/2022 0 Comments Helical gear design calculation![]() There are two other aspects that we must mention to you: In other words, if we choose to use a helical gear, we will have to consider that in the design of the prototype we must use mechanisms that allow these loads to be supported (for example, axial bearings).įor this reason, spur gears are generally chosen in racing vehicles, having to use fewer complex mechanisms to support the axial load reduces the total weight of the vehicle, a very important factor in this type of driving. Helical gears produce axial loads, spur gears do not. ![]() The teeth of the helical gears come into contact more progressively, for this and other reasons it is that race vehicles generally use spur gears and private vehicles use helical gears, as they allow for more comfort by reducing noise and allowing a smoother and gradual coupling.ĭo you consider the axial load produced by helical gears a design problem in your prototype? If noise influences your choice a lot, because since spur gears produce more noise at high speeds, you should choose a helical gear.ĭo you consider that you need a smooth and gradual power transmission in your prototype? So, we could simplify the choice of gear to use by asking the following questions:ĭo you consider that noise can be an important factor in your prototype? Allowing the helical gears to be better to transmit force and speed gradually.įurthermore, if we have a spur gear and a helical gear of the same dimensions and similar characteristics, the teeth of the helical gear would have a greater contact area due to their inclination, therefore, its teeth its more resistant.Ī spur gear is also cheaper and easier to manufacture than a helical gear. Spur gears do not come into contact “smoothly and gradually” while helical gears do come into contact “smoothly and gradually”. ![]() And last, the way the gear teeth come into contact. Noise: Spur gears at high speeds are much louder than helical gears.ģ. ![]()
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