Flanged Bearings or Bearings with Snap Ring

The F692 is a flanged bearing. in details; flanged deep groove radial ball bearings, the flange allows the bearing to be held in place once it is mounted to the shaft. This bearing is made of chrome steel and is shielded on one side only. The dimensions for the F692 are 2mm x 6mm x 2.3mm.
Another economic similar item, is the bearings that has snap rings usually named NR. I would always use a flanged bearing, it makes my simple design  with a rigid assembly.
You can buy the F692 online  http://www.vxb.com/page/bearings/PROD/Kit9445 or any flanged ball bearings at http://www.vxb.com/page/bearings/CTGY/FlangedBallBearings