These chains are also called Chabelco chains, cranked link or offset sidebars chains given their design.
These chains are intended for use in a wide range of power transmission, conveying and elevating applications under adverse operating conditions. Usual applications are driving heavy duty earth moving construction equipment, driving large stone and mineral crushing complexes, mining equipment, ball mills, oil rigs, etc..
In other words, applications where the requirement is to provide massive power at either low or very low speed and where loads are unevenly applied and where mud, stones and abrasive materials are constantly present.
The rotational speed of the small sprocket should be between 1/4 of r.p.m. and 200 r.p.m..
Only a few Chabelco chains have been standardized.