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unit 4.pptx

  1. Repair Methods For Basic Machine Elements
  2. Failure
  3. Causes for failures
  4. Fault tree analysis
  5. Event tree analysis
  6. • Worm wheel • Internal gear • Screw gear • Miter gear • Spur gear • Helical gear • Ratchet • Pawl • Rack&Pinion • Straight bevel gear • Spiral bevel gear
  7. Tooth breakage • Fatigue • Heavy wear • Over load • Cracking
  8. Repair method of lathe bed
  9. Lathe Headstock Alignment
  10. bearing material properties
  11. Inspections of bearings • Baring temperature • Noise and vibration • Properties of lubrications
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