Page 9 - Gear Technology Solutions

4.4 Perfect Conjugacy in Straight Bevel Gearsets....................................... 39
4.5 Perfect Conjugacy in Hypoid Gearsets.…………………………………... 44
4.6 Conjugacy between Meshing Flanks…………………………………..…. 46
4.7 Why is Conjugacy not Desirable for Real World Applications?………… 50
4.8 Transmission Orientations…………………………………………………. 52
4.9 Is Lapping an Attempt to make Hypoid Gear Conjugare?…………........ 53
4.10 Summary……………………………………………………………………... 55
4.11 Literature................................................................................................ 56

5. Root Interference……………….…………….................................................. 57
5.1 Dimension Sheet Analysis of Root Fillet………………………………..... 57
5.2 Maximal Cutter Blade Radius…….......................................................... 58
5.3 Mutilation Limit........................................................................................ 58
5.4 Interference Limit………......................................................................... 60
5.5 The Consequences of Interference.………………………………………. 62
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5.6 Straight Bevel Gears with Coniflex Plus……………………………..….. 64
5.7 Strength Advantage due to Hourglass Effect…………………………….. 65
5.8 Blade Radii Optimization…………………………………………………… 65
5.9 Summary…………………....................................................................... 68
5.10 Literature……………………………………………………………………... 68

6. The Undercut Phenomenon…………….…………….................................... 69
6.1 What is Undercut?……………………………………................................ 69
6.2 Rule of Involute Generation……............................................................. 69
6.3 The Mechanisms of Undercutting........................................................... 71
6.4 How the Trochoid Removes Part of the Involute.................................... 72
6.5 Why the created Undercut is Required for a correct Meshing?............. 73
6.6 Possibilities to Eliminate Undercut…………………………………..……. 74
6.7 Cleanup Problems in Case of Undercut and Holdback…………………. 77
6.8 Summary……………………………………………………………………... 78
6.9 Literature…............................................................................................. 78

7. The Hunting Tooth and its Effect on Break-In…….…………….................. 79
7.1 Is the Hunting Tooth only an Academic Phenomenon?……………....... 79
7.2 Four Cases of Ratios.............................................................................. 80
7.3 Is the Influence of the Hunting Tooth Theoretical or Reality?................. 82
7.4 Servicing a Transmission with Integer Ratio...........................................84
7.5 The Break-In Procedure………….………………………………………… 84
7.6 Surface Optimization during Break-In of a Hunting Tooth Ratio..……… 86
7.7 Summary……………………………………………………………………... 88
7.8 Literature……………………………………………………………………... 88

8. Topland Chamfering……………….……………............................................. 89
8.1 Different Methods for Face Hobbing and Face Milling………………...... 89
8.2 Topland Chamfering of Face Milled Bevel Gears................................... 90
8.3 Nominal Data based Chamfering Part Program Generation.................. 92

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