Page 11 - Tribology in Machine Design
P. 11
X Contents
8.4. Gear failure due to scuffing 278
8.4.1. Critical temperature factor 280
8.4.2. Minimum film thickness factor 281
8.5. Gear pitting 282
8.5.1. Surface originated pitting 283
8.5.2. Evaluation of surface pitting risk 283
8.5.3. Subsurface originated pitting . 284
8.5.4. Evaluation of subsurface pitting risk 284
8.6. Assessment of gear wear risk 285
8.7. Design aspect of gear lubrication 286
8.8. Efficiency of gears 288
8.8.1. Analysis of friction losses 289
8.8.2. Summary of efficiency formulae 293
References 294
Index 295
