Wiktionary
n. A system of interconnected gears.
Wikipedia
A gear train is a mechanical system formed by mounting gears on a frame so that the teeth of the gears engage.
Gear teeth are designed to ensure the pitch circles of engaging gears roll on each other without slipping, providing a smooth transmission of rotation from one gear to the next.
The transmission of rotation between contacting toothed wheels can be traced back to the Antikythera mechanism of Greece and the south-pointing chariot of China. Illustrations by the Renaissance scientist Georgius Agricola show gear trains with cylindrical teeth. The implementation of the involute tooth yielded a standard gear design that provides a constant speed ratio.
Features of gears and gear trains include:
- The ratio of the pitch circles of mating gears defines the speed ratio and the mechanical advantage of the gear set.
- A planetary gear train provides high gear reduction in a compact package.
- It is possible to design gear teeth for gears that are non-circular, yet still transmit torque smoothly.
- The speed ratios of chain and belt drives are computed in the same way as gear ratios. See bicycle gearing.
Usage examples of "gear train".
They sawed from side to side as the creature advanced, grinding trees to bits the way a gear train chews twigs that fall in.
The gunhouse shaded the barbette's gear train, but he could see the quiver of motion.
On the fast end of the gear train, I put a large drum with a zigzag groove running around it.
In fact, I have to go make a model of a gear train as my assignment for tomorrow, so I can't stay here and argue with you anymore.
If the gear train works as it is supposed to, if the thrust bearing mounts can stand up to the vibrations, if.
Justen picked up the miniature gear train, then looked at the pieces of the model lying on the workbench.
The skipper had tried to cross connect and proceed at half-speed, but the gear train was jammed.
The sail's rotation was imparted by diesel power applied to a gear train.
An electric motor drove both drums through a gear train so that one line paid out while the other was taken up.