Product review (4 stars): DIY- save some bucks!
I purchased this set (245703) to replace the drum bearings on my Bosch Nexxt 500plus series Front Loader- model# WFMC5301UC/13.  It had started to sound like a concrete mixer, so I knew it was time.  The root cause of the bearing failure seemed to be shaft seal failure (also included in this package), which allowed water from the tub into the bearings.
New bearings are silent and well-made, it seems.  This requires a full teardown of the washer to nearly nothing, took a bit of time.  I found an online presentation- "R020031E Bosch Siemens WFMC WFXD Washer.pdf" that broke down the task nicely, with lots of pictures- Google it.  I also found a video on youtube that did a good job, too.  I'm a pretty hardcore DIY-er, but both of these were a great help in disassembly/reassembly.
I put the new bearings in the freezer for a few hours prior to installing them on the drum- maybe helped them fit into the drum race slightly easier, but only slightly.  It took some serious pounding to knock the old ones out, and several minutes each to get the new ones in.  Take care not to damage them when installing- tapping/hammering/pressing on anything except the very outside ring will be disastrous.
Overall, I'm pleased.  The washer is back to its original, nearly-silent self.  I hope these (and the rest of the washer) will last another 2-3 years.