| Year | 1919 |
| Date | 07-Aug |
| Volume | 41 |
| Issue | 954 |
| Page | 134 |
| Category | Workshop |
| Part | |
| Title | About Ball Bearings |
| Author | F.Hall Bramley |
| Notes | Three examples used in cycle work, standard B.S.A. types, American three-point contact, thrust bearing for bicycle ball head, unadjustable for radial loads, thrust bearing of good design not taking a radial load, double ball type |