I’ve had this before.
It’s the main pivot, and you need either the standalone main pivot kit, or the full 2009+ DW pivots kit, not 2000+.
From my understanding, this pivot has the most rotation (not sure about the load) hence may wear out faster than others.
It _might_ help to pull out the plastic pivot hats, swap them left-to-right (maybe turn 90 degrees) and assemble back. The main idea is that the wear has ovalized them you can get a bit more (until the new pivot arrives) out of them like this.
UPD: This is the kit you need:
http://www.silverfish-uk.com/ProductDetail/9858/11402/XC-DW-Link-Full-Rebuild-Kit-2009-
It’s a shame you cannot buy the main pivot on its own. Maybe you can but then I don’t know where.