| Year | 1950 |
| Date | 01-Jun |
| Volume | 102 |
| Issue | 2,558 |
| Page | 785 |
| Category | In The Workshop |
| Part | 64 |
| Title | Fitting Flywheels and Gearwheels to Shafts |
| Author | "Duplex" |
| Notes | Tapered keys, the Woodruff key, examples from automobile practice, some simple wheel fixings, tapered wheel mountings, collet mountings for flywheels, Triumph patent self-withdrawing magneto sprocket |