The smallest chain complying to ANSI is 25 of six.35 mm pitch. Nonetheless, in response for the demands for smaller sized chains in recent years for large technologies machinery this kind of as office gear, medical machines and industrial robots, we provide 15 of four.7625 mm 
(3/16 inch) pitch and also 15H1 as a high-power edition of 15. These higher precision chains are produced beneath extreme excellent control especially essential for modest sizes, taking dress in resistance also into account.
Variety of chain
Refer for the “Low-speed selection”. On the other hand, the chain operation pace could be set substantially high determined by the kind of lubrication as shown inside the table below.
Connecting hyperlinks and offset links
R connecting back links are used for smaller pitch chains. Nevertheless, considering the fact that their strength is reduce than that in the base chain, and since the clip is more likely to come off in high velocity operation, the usage of connecting hyperlinks isn’t advisable. Use a loop chain without having attaching connecting hyperlinks.
Offset backlinks can be found for chains apart from 15 and 15H1, but their use just isn’t recommended for that identical motive as stated for the R Connecting hyperlinks.
Working speed and type of lubrication
15: A high precision mini-pitch bushing chain that is certainly smaller than a compact drive chain for common applications, 25
25: Smallest bushing chain among ANSI common chains employing curl bushings.
35: A ANSI conventional bushing chain appropriate for compact precision machines that call for substantial strength.
