# Number of Kinematic Pairs

Kinematic pairs are the connection between 2 links that can have relative motion between them.

But In six bar chain as shown below:

There are five pairs for them to be a kinematic chain. But if I consider links between ((1,4),(3,4),(3,2),(2,1),(2,6),(6,5),(5,1)).I get 7 kinematic pairs. I have the resources suggesting that this chain has only 5 kinematic pairs. How?

EDIT:

• Does it fit the equation? See engineering.stackexchange.com/q/42561/10902 Apr 27, 2021 at 19:49
• It fits the equation when it it has 5 pairs but actually when counting the pair, It has 7 pairs. Apr 28, 2021 at 3:25
• Yes.But they also form kinematic pair B forms with link (2,1) . And G forms kinematic pair with link (2,6). Apr 28, 2021 at 3:51
• What is the exact wording in your assignment. Because it seems to me that your paraphrazing of the question is tge error at hand. Apr 28, 2021 at 4:10
• site.iugaza.edu.ps/mhaiba/files/2013/09/… page 20. It doesn't say anything but they have substituted kinematic pairs as 20 in the equation.If the file is not available see the edit in my question. Apr 28, 2021 at 4:12