Catia tutorial helical gear design1/8/2023 ![]() So we cannot use the helix curve provided by Caa when 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.Ģ How to use the same parametric part for spur gears and helical gears The standard spur gear coresponds to a 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. ![]() This tutorial shows how to make a basic helical gear that you can freely re-use in your assemblies.ġ Sources, credits and links The helical gear can be coupled with a worm part. ![]() VRML97 model: helical_gear.wrl (414 KB).Ī helical gear can be used with a worm, in a worm / worm wheel gearbox Hp:///doc/caa/helical_gear.htmlĭesigning parametric helical gears with Catia V5 Published at h p:///doc/caa/helical_gear.html Wri en by Gildas Trébaol on July 1st, 2005. Designing parametric helical gears with Caa V5
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