is link wheel effective for keywords ranking ?

Link Wheel is not so effective but you can try Link Trundle that is an improved version of Link Wheel and get improvement in site rankings.

Link wheel is a widely used internet marketing strategy. The basic idea of link wheels is to create a pattern of links which flow from one website to another which would finally link to a targeted website requiring promotion.

link wheel is really effective and it does improves your keyword ranking.

It is critical that sites in the link wheel are also credible, or you may be hit with Penguin algorithm from Google

Link wheel is the process of linking the A website to another B website that B website is linking to another new website C and new website C linking back to A website.

Link wheel is the best way to get good links forms the web 2.0 authority sites. it will defiantly helpful for your website.