A knurl is a part of a stud for a wheel.
Basically, there are three parts to the stud, the head, the knurl, and the shaft.
The knurl lies between the head and the shaft. The purpose of the knurl is to keep the stud securely within the hub of the wheel, since the shaft must slip through the hub easily and be tightened with a nut.
The knurl is an area just below the head that is thicker than the shaft so that it wil fit snug when hammered into the hub of a wheel. The knurl will often have a small grid cut into it to make it catch onto the inside of the hub and thus make is hold better.

Here is a basic ASCII sketch of a stud, please excuse me if it's rough, I'm not very talented in the ACSII area.


               |---| 
               |   |
               |   | 
       /------/|   |    
------/        | h |  
shaft |   knurl| e | 
------\        | a | 
       \------\| d | 
               |   |
               |   |
               |---|

Knurl (?), n. [See Knar, Gnar.]

A contorted knot in wood; a crossgrained protuberance; a nodule; a boss or projection.

2.

One who, or that which, is crossgrained.

 

© Webster 1913.


Knurl (?), v. t.

To provide with ridges, to assist the grasp, as in the edge of a flat knob, or coin; to mill.

 

© Webster 1913.

Log in or registerto write something here or to contact authors.