Link wheel is a process of making such an article with those web 2.0 sites wherein the backlink that is made inside of those article content will point out the other web 2.0 article and the website of yours that you optimize.
Imagine that the center of hub is the webpage that need improvement in terms of traffic as well as its placing in the search engine results page, and it is known as the targeted webpage. Each of the spoke of the wheel is another unique content article that link back to center webpage and a link directing towards another article of the link wheel. To get the desired result from your link wheel SEO technique make sure that you use quality content which is rich of targeted key word and this must be implemented while creating spokes of your link wheel SEO
Basically, a linkwheel is a set of SIX Web 2.0 properties interlinked in a “wheel†structure, all promoting a page on the web which is the focus of that particular “wheelâ€. Basically, you have six properties up, and each contains a link to the “focus hub†AND its 'neighbor' as you can see in the image above, the arrows representing links.
Link wheel is a method by which your site gets some fresh contents with some backlinks too. For more details you can view my signature links.