![]() ![]() Designing parametric helical gears with Caa V5 hp:///doc/caa/helical_gear.html 1 of 5 8:06 PMĭesigning parametric helical gears with Ca a V5 2 How to use the same parametric part for spur gears and helical gears The standard spur gear coresponds to a ψ = 0. The dimension of the helical gear and the worm shown in this tutorial are taken from the page #358 of the part catalog Engrenages H.P.C, June 1999 edion. The lead L of the helix screw corresponds to the formula: L = π * D / tan( ψ ). The ψ angle of the helical wheel must match the ψ angle of the worm. On an helical gear, the angle between the teeth and the axis is named ψ. ![]() ![]() The main difference is the inclinaon angle of the teeth relave to the rotaon axis: On a spur gear, the tooth is parallel to the gear axis. The helical gear is close to the standard spur gear part. 1 Sources, credits and links The helical gear can be coupled with a worm part. A helical gear can be used with a worm, in a worm / worm wheel gearbox This tutorial shows how to make a basic helical gear that you can freely re-use in your assemblies. Designing parametric helical gears with Catia V5 Published at hp:///doc/caa/helical_gear.html Wrien by Gildas Trébaol on July 1 st, 2005. ![]()
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