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Chain tensioner: a device to maintain proper chain tension; Chaintug: a device to aid in setting the proper chain tension; Cluster: a bicycle cogset, either a freewheel, or cassette; Cogset: the set of rear sprockets that attaches to the hub on the rear wheel; Cone: holds bearings in place, pressed against the cup; Cotter: pin for attaching ...
The right-side (usually the chain side) hole is right-hand threaded, and the left-side hole is left-hand (reverse) threaded to help prevent it from becoming unthreaded by an effect called precession. Pedal spindles are hard steel, and gradually fret and erode the crankarm where the two meet.
A machine tool may have several spindles, such as the headstock and tailstock spindles on a bench lathe. The main spindle is usually the biggest one. References to "the spindle" without further qualification imply the main spindle. Some machine tools that specialize in high-volume mass production have a group of 4, 6, or even more main spindles.
A spindle whorl may be a disk or spherical object. It is typically positioned on the bottom of the spindle. The spinner spins the weighted spindle pulling off a mass of fibers which is twisted into yarn.
Muscle spindles are composed of 5-14 muscle fibers, of which there are three types: dynamic nuclear bag fibers (bag 1 fibers), static nuclear bag fibers (bag 2 fibers), and nuclear chain fibers. [1] [2] Light microscope photograph of a muscle spindle. HE stain. Primary type Ia sensory fibers (large diameter) spiral around all intrafusal muscle ...
Acentrosomal or anastral spindles lack centrosomes or asters at the spindle poles, respectively, and occur for example during female meiosis in most animals. [5] In this instance, a Ran GTP gradient is the main regulator of spindle microtubule organization and assembly.