16T

16T is a designation used in several technical contexts, most often to denote a gear or sprocket with sixteen teeth. The exact meaning depends on the domain and the surrounding specifications.

In gear terminology, 16T describes the number of teeth on a gear. Gears are specified by tooth count and pitch, and the pitch diameter is determined by the gear’s module (or pitch). For a spur gear, the pitch diameter d equals the module m times the number of teeth z, so a 16-tooth gear has a characteristic size that must mesh with a matching gear of compatible pitch and tooth count.

In cycling and related equipment, 16T commonly appears on rear sprockets or cassettes, indicating a sprocket with sixteen teeth. It can also appear on front chainrings in certain configurations, though 16T is more typical for rear gear assemblies and is a factor in gear ratio calculations.

In radio-controlled and other hobbyist applications, 16T often designates a 16-tooth pinion gear used with a larger spur gear to achieve a desired gear ratio. Such use affects vehicle speed, torque, and acceleration and must match the motor’s performance and the drivetrain’s pitch.

Beyond gears, 16T can also appear as a model number, part code, or batch identifier. In these cases, the meaning is specific to the manufacturer or product line and may not relate to tooth counts at all.

If encountering the term 16T, context is crucial: determine whether it refers to the number of teeth, a turns-related specification, or a product identifier, and consult accompanying specifications to confirm compatibility and dimensions. See also gear, pinion gear, spur gear, chainring, tooth count.