1/25/2024 0 Comments Helical gear design procedure ppt![]() Backlash = Tooth space – Tooth thickness.of teeth on the wheel Diametral pitch (pd): pd = z/D = π/pc Module pitch (m): m =D/z Pitch Circular pitch (pc): Pc = πD/zĝ = Dia.Curved teeth gears Classification based on the type of gearing:.Low velocity gears – ν 15 m/s Classification based on the position of teeth on the wheel:.Ĭontd… Classification based on peripheral speed (ν): Row gears The motion of the shafts relative to each other is fixed.Classification based on the relative motion of the shafts: Intersecting shafts Ex: Bevel gears and spiral gears.Parallel shafts Ex.: Spur gears, helical gears, rack and pinion, herringbone gears and internal gears.It is used when large power is to be transmitted.ĭefiniton A circular body of cylindrical shape or that of the shape of frustum of a cone and of uniform small width, having teeth of uniform formation, provided on its outer circumferential surface, is called a gear or toothed gear or toothed wheel.Ĭlassification of gears Classification based on the relative position of their shaft axes:.It can operate at high speeds and can be used where precise timing is required.Compare with belt, chain and friction drives, gear drives are more compact. ![]() ![]() Gears are toothed wheels used for transmitting motion and Power from one shaft to another, when they are not to far apart.UNIT-IISPUR GEARS Prepared by R.Sendil kumar ![]()
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