Helical Gear Design

(Reprinted from Design Data, PSG Tech,1995)

HELICAL GEAR DESIGN


Helical Gear Fundamental

1. Determine HorsePower based on Lewis Formula

Same as Spur Gear Design except the inclusion of helix angle

HP_Helical = HP_Spur * cos(ψ)


2. Calculate Design Horse Power

Same as Spur Gear


3. Select the Gear / pinion with horse power capacity equal to or more than Design HP


From "Handbook of Gears" -Stock drive products

Table 1.18 Ratings for Hardened Steel Helical Gears


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