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.
Wippermann offers three different types of hollow pin chains
- Type 1 is like a bush chain, in favor of the hollow pins the rollers are replaced.
- 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.
- Type 3 corresponds to a roller chain with the roller diameter exceeding the plate height. The rollers are manufactured of steel or PA 6.6, and a stainless steel version can also be supplied.
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