cogwheel
Sign in to savethumb|upright=1.5|right|Two intermeshing spur gears rotating at different velocity due to differing gear ratio
AI overview
A cogwheel is a toothed wheel that meshes with other toothed wheels to transfer and control rotational motion and power in machines. By using cogwheels of different sizes, machines can change the speed and force of rotation to accomplish tasks ranging from simple tools to complex mechanical systems.
AI-generated from the Wikipedia summary — may contain errors.
Article
47 sectionsContents
- History
- Etymology
- Materials
- Manufacture
- Comparison with other drive mechanisms
- Ideal gear model
- Relative axis position
- Parallel
- Crossed
- Skew
- Tooth orientation
- Internal and external
- Crown
- Tooth cut direction
- Straight
- Helical
- Double helical
- Worm
- Tooth profile
- Artisanal
- Cage
- Mathematical
- Parallel and crossed axes
- Skew axes
- Special gear trains
- Rack and pinion
- Epicyclic gear train
- Sun and planet
- Non-circular gears
- Non-rigid gears
- Harmonic gear
- Magnetic gear
- Nomenclature
- General
- Helical gear
- Worm gear
- Tooth contact
- Tooth thickness
- Pitch
- Backlash
- Gear failure mechanism
- Gear model in modern physics
- Gear mechanism in natural world
- See also
- References
- Further reading
- External links
thumb|upright=1.5|right|Two intermeshing spur gears rotating at different velocity due to differing gear ratio
A gear or gearwheel, also called a toothed wheel, is a rotating machine part typically used to transmit rotational motion or torque by means of a series of "teeth" that engage with compatible teeth of another gear or other part. The teeth can be integral saliences or cavities machined on the part, or separate pegs inserted into it. In the latter case, the gear is usually called a cogwheel. A cog may be one of those pegs or the whole gear. Two or more meshing gears are called a gear train.