The smallest chain complying to ANSI is 25 of six.35 mm pitch. On the other hand, in response towards the demands for smaller chains in recent years for substantial technologies machinery this kind of as office gear, health care machines and industrial robots, we offer 15 of 4.7625 mm (3/16 inch) pitch and also 15H1 like a high-power edition of 15. These higher precision chains are manufactured beneath extreme high-quality manage primarily demanded for compact sizes, taking wear resistance also into account.
Choice of chain
Refer to your “Low-speed selection”. Having said that, the chain operation speed may be set considerably large depending on the kind of lubrication as proven within the table below.
Connecting back links and offset hyperlinks
R connecting backlinks are utilised for modest pitch chains. On the other hand, given that their strength is reduce than that of the base chain, and since the clip is likely to come off in large pace operation, using connecting backlinks is not suggested. Use a loop chain without attaching connecting back links.
Offset hyperlinks 
can be found for chains besides 15 and 15H1, but their use just isn’t advisable for that same cause as stated to the R Connecting hyperlinks.
Operating velocity and type of lubrication
15: A high precision mini-pitch bushing chain that is certainly smaller than a compact drive chain for basic applications, 25
25: Smallest bushing chain amongst ANSI normal chains applying curl bushings.
35: A ANSI normal bushing chain ideal for modest precision machines that call for substantial strength.