The smallest chain complying to ANSI is 25 of 6.35 mm pitch. Nevertheless, in response on the demands for smaller sized chains lately for higher technological innovation machinery this kind of as workplace gear, health-related machines and industrial robots, we deliver 15 of 4.7625 mm (3/16 inch) pitch and in addition 15H1 as being a high-power edition of 15. These higher precision chains are manufactured below severe quality control in particular needed for small sizes, taking wear resistance also into consideration.
Choice of chain
Refer towards the “Low-speed selection”. On the other hand, the chain operation speed is usually set significantly large based on the sort of lubrication as proven inside the table 
beneath.
Connecting back links and offset hyperlinks
R connecting hyperlinks are utilized for compact pitch chains. Nonetheless, considering the fact that their strength is reduce than that of the base chain, and since the clip is likely to come off in high velocity operation, the usage of connecting hyperlinks isn’t encouraged. Use a loop chain with no attaching connecting links.
Offset hyperlinks can be found for chains other than 15 and 15H1, but their use is not really suggested for your identical motive as stated for that R Connecting links.
Operating speed and variety of lubrication
15: A high precision mini-pitch bushing chain which is smaller sized than a compact drive chain for common applications, 25
25: Smallest bushing chain among ANSI conventional chains employing curl bushings.
35: A ANSI typical bushing chain ideal for smaller precision machines that call for large strength.
