The sprocket is in contacts with the chain link in the two parts.
•The sprocket teeth surface – the roller of chain link
•The outer side of virtual flange link - the outer side of chain outer link
•Contact range is the addendum circle ranges(sprocket) plus pitch(link).
•Note: If the CM of the link is included in the contact range, recurdyn determines the contact between sprocket and link.
Figure 1 Contact between a sprocket and chain links
Figure 2 Contact Range