INSERT FOR SHEAR-TYPE FLEXIBLE SHAFT COUPLINGS

摘要

A non-split, unitary insert for a shear-type flexible shaft coupling is provided. The insert has an inner ring and an outer ring that is non-removably joined to and encircles the inner ring. The inner ring is constructed of a material having a durometer that is less than the durometer of the material forming the outer ring. In embodiments both of these materials are polyurethane. This arrangement permits slots of the inner ring to shear while retaining the integrity of insert by preventing destruction of the outer ring during shear of the slots. The outer ring may include one or more radial tabs that are received by corresponding one or more radial notches in the inner ring to prevent separation of the rings under load.

主权项

1. A unitary insert for a shear-type shaft coupling, the insert comprising:
an inner ring comprised of a first material of a first durometer and having a plurality of longitudinal slots; an outer ring comprised of a second material of a second durometer that is greater than said first durometer; said outer ring encircling said inner ring and being non-removably conjoined therewith; and said insert is not radially split.