| Year | 1908 |
| Date | 30-Apr |
| Volume | 18 |
| Issue | 366 |
| Page | 424 |
| Category | Workshop |
| Part | |
| Title | The Design and Construction of Ball Bearings |
| Author | "Zodiac" |
| Notes | Simple ball bearing thrust block for boat or lathe, table of diameter of ball pitch-circle for 1" balls, table showing power transmitted by steel shafting |