| Year | 1926 |
| Date | 29-Jul |
| Volume | 55 |
| Issue | 1,316 |
| Page | 115 |
| Category | Workshop Topics |
| Part | |
| Title | Ball Bearings |
| Author | Andrew Rutherford |
| Notes | Types of casting, cores, materials, desirable compositions for good castings, non-ferrous castings, aluminium alloys, attention to patters |