HP System Supply Fan Replacement

I have an Agilent 6612C system DC power supply that has been very useful, but unfortunately the bearings in the fan have started to make noise. HP installed Papst Typ 612 fans in thes units, a 2.5W 60x60x25 mm fan.

Papst 612 Fan

New, these seem to be around $50 part each. So instead I ended up replacing them with CUI CFM-6025V-152-312, which have similar specifications but possibly lower quality.

Fans in larger system supply