| Year | 1908 |
| Date | 16-Apr |
| Volume | 18 |
| Issue | 364 |
| Page | 369 |
| Category | Workshop |
| Part | |
| Title | The Design and Construction of Ball Bearings |
| Author | "Zodiac" |
| Notes | Reaction, forces tending to turn or rotate cycle pedal pin, forces tending to turn cups in cycle bottom bracket, in disc-adjusting hub, rubbing of balls agaibst each other |