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ADDENDUM CIRCLE. B3. TIP DIA. ρ 3. PITCH CIRCLE. B2. PITCH CIRCLE DIA. ρ 2. B1. BASE CIRCLE. ρ 1. Bo or Ao. ROOT CIRCLE. A1. BASE DIA. R A0= R B0. R B1. R B2. R A1. R B3. R A2. α 1. Ø 1. R A3. Ø 2. α 2. α 3. Ø 3. O. GEAR PROFILE.
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ADDENDUM CIRCLE B3 TIP DIA ρ3 PITCH CIRCLE B2 PITCH CIRCLE DIA ρ2 B1 BASE CIRCLE ρ1 BoorAo ROOT CIRCLE A1 BASE DIA RA0=RB0 RB1 RB2 RA1 RB3 RA2 α1 Ø1 RA3 Ø2 α2 α3 Ø3 O GEAR PROFILE Here is given the profile generation by finding points from calculating angles α. A2 A3 CALCULATION:- ØI = Cos-1(RAI/RBI); -Where RAI= Base Radius, and RBI= Tip Radius. αI=INV(ØI)=tan(ØI)- ØI. (Angles are in radians.)