I heard about link but i did not creared about link wheel can anyone explain?

Link Wheel is one of the best resource in Off-page optimization..by this we can get more traffic and quality backlinks to your website. Link Wheel is having more priority after Google Penguin updates. It is pure white hat technique that's why Google will believe this strategy.

Link wheel is a technique with which you can get your hubpage indexed in search engines and when hub page got indexed your web pages on that hub page automatically get indexed, Web2.0 is used for link wheel, when you have money site the properties can be linked with each other to get 3D links.

Link Wheel is interlinking structure of backlinks and finally link to the targeting site. It is more popular in early 2012 but not too effective.

Link wheel is a widely used internet marketing strategy and best  methods with which you can get your hubpage indexed in search engines and when hub page got indexed your web pages on that hub page directly get indexed, Web2.0 is used for link wheel.