The guide rail is in contacts with the chain link in the two parts.
•The surface of guide rail – the top/bottom surface of chain link plates
Figure 1 Contact between a guide and chain links
If the roller diameter of chain link is bigger than the height of roller link plate, the contact will occur as follows.
•The surface of guide rail – the roller of chain link
Figure 2 Contact between a guide and roller of chain links
If the guide width is narrower than the pin length of chain links, the contact will happen when checking the option of Use Only Link Roller Contact.
•The surface of the narrow guide rail – the roller link of chain links
Figure 3 Contact between the narrow guide and chain links