Hub with speed change gear has power transmission element, axis between drive bushing and counter bearing, ball bearings, selector shaft, planetary gear and sleeve

摘要

The speed change gear on one side has a power-transmission element which has a drive bushing (5) pivot mounted on the axle (6) by a ball bearing (7) and on the hub's basic body (2) by a ball bearing (3). The axle is held between the drive bushing and a counter bearing in a bearing plate (9) which is mounted on the basic hub body by means of a ball bearing (8). The control is longitudinally movable with a sliding selector shaft (21), a coupling arm (20) and a sleeve (19) with a movable pulley (22). A gear (13) with a planetary support (14), three planetary cog wheels (15) and a sun wheel (16) on the axle is positioned on the axle.. The planetary support has a bearing tube (17) on which turns an inner cog wheel crown (18) engaging with the planetary cog wheels. The sleeve is coupled to the drive bushing by means of outer cogging (23) . A coupling bell (25) is axially fixed to the sleeve and is coupled by outer cogging (33) to the inner cogging of a bush (11) i nset in the hub's basic body.