Handwheel n. : Any wheel worked by hand; esp., one the rim of which serves as the handle by which a valve, car brake, or other part is adjusted.

Example:
How to you fix the Handwheel on a sewing machine that gets stuck ?

Taxonomy
handwheels, valve, steel, company supplies, oil, gas, water companies, around the world, milling, Houston, Texas, Special design, stock, Olson, Lane.

Defination from the web:
handwheels to oil, gas, and water companies around the world. ... Located in Houston, Texas, our company supplies handwheels. to oil, gas, and water companies around the world. The two basic types of handwheels are flat and dished. ...