Hollow pin chains for conveyance equipment and paternoster elevators
Hollow pin chains have chain pins with through-bore holes for mounting specifically designed attachments. They are often found as chain pairs in conveyance equipment or paternoster elevators. In these cases, matched pre-stretched chains are supplied.
Type 2 is basically a plate chain with a roller, but it has a hollow pin instead of a bushing. Therefore the wear-relevant bearing area is quite small.
Hollow pin chains (PDF)