Bearings for the Ubiquitous Porter Cable 690 Series Router

[Philip1231]

I am looking to pick up some spare bearings for a couple of Porter Cable 690 series routers. I would have thought that there would be some cross reference between PC part numbers and standard bearing numbers somewhere on the web. If it exists, I could not find it. Here are the two PC part numbers:

878065 fan bearing
855284 commutator bearing

I know I can take the unit apart and remove the bearings and measure them, but I'd like to have the replacements on hand before I disassemble the units.

Your assistance would be greatly appreciated.

[jteneyck]

I am looking to pick up some spare bearings for a couple of Porter Cable 690 series routers. I would have thought that there would be some cross reference between PC part numbers and standard bearing numbers somewhere on the web. If it exists, I could not find it. Here are the two PC part numbers:

878065 fan bearing
855284 commutator bearing

I know I can take the unit apart and remove the bearings and measure them, but I'd like to have the replacements on hand before I disassemble the units.

Your assistance would be greatly appreciated.

Here's the second one:  855284

And this one is said to be correct for the other end:  878064SV

John

[Brian in sunny FL]

Here's the second one:  855284

And this one is said to be correct for the other end:  878064SV

John

Those 608 roller skate bearings are very common, that seller is getting the PC premium but a good source to back into the numbers.

If I was replacing them I would get an Abec rated bearing like an Abec-5 as they are not much more expensive.

[Philip1231]

John/Brian: thanks for that feedback. Assuming we can trust the bearing numbers on the bearings shown in the pictures on the Amazon website (and assuming they are not just stock bearing photos). It looks like both the 608z and 6202rs are the standard bearing numbers and these are widely available, and at various quality levels. I am also assuming that I could substitute a 608zz for the 608z. I did find the exact OEM replacement bearings on ebay, but I suspect these bearings have been sitting on a shelf for many years and I've heard that there is an expiration date on these types of bearings due to the aging of the grease. If I am going to the trouble of changing the bearings, I'd like to get "fresh" bearings. Phil