For most machines connected by a flexible coupling, the distance between shaft ends is quite specific, for example 1/2 in. on close-coupled drives, 7 in. on pump applications, or possibly 100 in ...

Bellow couplings represent one type of flexible metal coupling. They come in three types: formed, electroplated, and edge-welded. Bellow couplings resist axial, parallel, and angular misalignment.

Ford said the issue will not affect Transits with fewer than 30,000 miles on them, or vans that have had a driveshaft or driveshaft flexible coupling replaced within the last 30,000 miles.