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English: A diagram comparing two types of rear bicycle hubs, freehub, and threaded hub, both with adjustable cup and cone bearing systems. The image is cut away to show the axle and bearing system, and labelled in English.
A hub gear, [1] internal-gear hub, [2] internally geared hub [3] or just gear hub [4] is a gear ratio changing system commonly used on bicycles that is implemented with planetary or epicyclic gears. The gears and lubricants are sealed within the shell of the hub gear, in contrast with derailleur gears where the gears and mechanism are exposed ...
Freehub vs freewheel hub. The freehub concept answers several drawbacks encountered with the freewheel design: Freewheels are threaded onto an axle hub, using conventional right-hand threads. As the bicycle rider pedals, the freewheel is continuously kept tight, as chain torque is in the right-hand direction. This becomes a problem when the ...
Mechanically activated locking hubs are activated by hand by turning a switch on the end of the axle. The advantage to mechanical hubs is that they are often considered more robust, and less prone to issues due to maintenance negligence. The disadvantage of this is that the driver needs to get out of the vehicle to activate the hubs.
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Download QR code; Print/export Download as PDF; Printable version; In other projects Appearance. move to sidebar hide ... 21 (HUB-Lq) 22 (HUB-L) 22clo (HUBsc4)
Hub-center steering is characterized by the steering pivot points being inside the hub of the wheel, rather than above the wheel in the headstock as in the traditional layout. Most hub-center arrangements employ a swingarm that extends from the bottom of the engine/frame to the center of the front wheel.
The hub assembly is located between the brake drums or discs and the drive axle. A wheel is bolted on it. Depending on the construction, the end of the hub comes equipped with the splined teeth. They mate the teeth on the axle shaft. The axle hub spins along with the wheels bolted to it and provide power to the wheels in order to rotate.