Combined multispeed cycle hub - has drive unit supported by three separate bearings on two speed hub

摘要

The two speed car hub works in conjunction with five different sized sprockets (17, 21) driven by a conventional chain tensioner systems. The sprockets are fitted to the hub drive (2) extension. The hub drive carries a ratchet stop(7) and planet wheel carriers. The sprockets are fitted to the hub drive (2) extension. The hub drive carries a ratchet stop (7) and planet wheel carriers. The plant wheel engages with the sun wheel fitted to the wheel axle (12). The hub is supported by three separate bearings. The one bearing (14) is situated between the hub drive extension below the centre between the largest and smallest sprocket and the hub axle. The second bearing (3) is placed between the drive extension (2) and the wheel hub cover (1). The drive is further supported by a third bearing (13) situated close to the ratchet stop (7).