| 摘要 |
A force-retarding device for a stationary bicycle includes a supporting base, a flywheel provided on the supporting base, a transmitting element, a shaft combined with the flywheel and the transmitting element, and a movement-stopping base provided between the transmitting element and the shaft. The movement-stopping base has an annular vertical contact surface. At one side of the contact surface are orderly provided a first bearing, a separating ring and a second bearing. An annular sealer is provided, screwed on an inner annular surface of the transmitting element and located outside of the second bearing. Then the sealer may press against the first bearing, the separating ring, the second bearing and the movement-stopping base to leave no gap between them to prohibit the bearings from sliding right or left. So the force-retarding device may not give rise to vibration or noise in pedaling the stationary bicycle. |
