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A clutch that connects or disconnects drive to a gear.
Toothed wheels that mesh with other toothed wheels.
The clearance between the teeth of two meshing gears. Also known as backlash when applied to gears.
An oil pump using two meshed gears to provide a positive pumping action. The teeth are of the two gears run in mesh. Where they come out of mesh a small chamber forms to allow oil to flow in, the oil is carried round the periphery of pump in the gear teeth and when the teeth come into mesh the chamber is reduced in size and the oil forced from the pump.
Ratio of angular velocities of pairs of meshing gears. Number of teeth on driven gear divided by number of teeth on driver gear.
A gear drive that reduces the rotational speed of the output shaft below that of the input shaft.
Two or more gears in mesh that transmit a drive through them.
A housing containing gears to allow different ratios to be selected.
A distributor driven by a gear from the engine.