cog(redirected from Cog (disambiguation))
Also found in: Dictionary, Thesaurus, Medical, Legal, Financial, Wikipedia.
1. any of the teeth or projections on the rim of a gearwheel or sprocket
2. a gearwheel, esp a small one
A tooth on the edge of a wheel.
A fluctuation in the torque delivered by a motor when it runs at low speed, due to electromechanical effects. Also known as torque ripple.
In a cogged joint, the solid portion which is left in a timber after it has been notched.