FAA Certified On-Site Training

AEROS offers FAA Certified* on-site training for individuals seeking to enhance their knowledge and procedures for bearings and the tasks associated with removal, installation, and proof load testing. These seminars have been conducted at repair stations and airline facilities.

*The training course FAA identification number is C/Industry/MI/08/06/12/001/08

Instructor Dan A. Haugh
Course Description: This two-day short course is designed as a complete introduction for people working in repair development, engineering, and quality assurance

Day One
Morning (Classroom)  9 a.m. – 12 noon, with two 15 minute breaks

1. Spherical Bearing Design Fundamentals
   1. Teflon Lined Bearing
      1. History of use
         1. Limitations
            1. Temperature
            2. Loads
            3. Material selection
            4. Limited life
         2. Advantages
            1. Cost
            2. Standard sizing
            3. Availability
   2. Metal-to-Metal Swaged Bearings
      1. Historical design development
      2. Advantages
         1. Temperature capability
         2. Loads
      3. Limitations
   3. Slotted Entry Bearings
      1. Advantages
         1. Temperature capability
         2. Load capability (vibratory)
         3. Cost
         4. Material selection
2. Bearing Failure Modes
3. Bearing Inspection
   1. Axial Play: ball-to-ball clearance; race-to-housing movement
   2. Radial Play: ball-to-race clearance; race-to-housing movement
   3. Methods of inspection
      1. Manual
      2. Mechanical
         1. Equipment requirements
         2. Drawing requirements
4. CFM56-5C Engine Mount discussion
   1. Front mount
   2. Rear mount

   Day One
   Afternoon (Hands-on session in shop) 1 p.m. – 4 p.m. with two 15 minute breaks

5. Bearing Removal Techniques
   1. Material type
      1. Hard
      2. Soft
   2. Weakening Swaged V Groove
      1. Cut recess in race
      2. Use of puller after cutting
   3. Types of Cutters
      1. Hole saw
      2. Grinding tool
      3. Shafer cutter
6. Housing Inspection
   1. Visual indications including corrosion, cracking, and scratches
      1. Manual instructions
      2. Criteria from manual
      3. Common sense!
   2. Physical Measurements
      1. Determination of diameter and roundness
      2. Chamfer inspection for damage to edges
      3. Gages
7. Housing Hole Quality
   1. Original Manufacturer Determination of Criteria
      1. Hole diameter tolerance
      2. Concentricity tolerance
      3. Corrosion protection
      4. Chamber geometry

   Day Two
   Morning (Classroom) 9 a.m. – 12 noon with two 15 minute breaks

8. Housing Modifications
   1. Advantage and Disadvantages of Sleeve repair
   2. Advantages and Disadvantages of Oversized Race Bearing Repair
9. Housing Preparations
   1. Corrosion removal
   2. Bore size increase
   3. Chamber renewal
   4. Surface Preparation
   5. Inspection

   Day Two
   Afternoon (Hands-on session in shop) 1 p.m. – 4 .m. with two 15 minute breaks

10. Bearing Installation Discussion & Demonstration
    1. Anvil
    2. Two wheel
    3. Tri roller  Demonstrations
11. Installation Inspection
    1. Visual
    2. Manual or “Hand” gauging
    3. Physical measurement
12. Proof & Side Load Testing
    1. Proof
    2. Side Load

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