Are all belt and pulley grooves alike?

There are three basic types of pulleys and belts. Three very common types would be round, v-shaped, and flat. Each type of belt requires a matching pulley type. For example, a flat-type belt would require a compatible flat shaped pulley, where the surface of friction is smooth and flat. Most other belts are some variation of these three types. Any of these types of belts may be ribbed, toothed, or some hybrid of any of the above types.