porter cable 100m bearings

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Forum topic by olrac posted 03-12-2017 06:32 PM 600 views 0 times favorited 7 replies Add to Favorites Watch
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9 posts in 1358 days

03-12-2017 06:32 PM

Topic tags/keywords: 100m bearings

Does anyone know the number for replacement bearings for these routers? I tried e-replacement parts for the 1001 router which I thought was the same as the 100 but the top bearing they supplied is not wide enough. The ID and OD are correct but the 100m bearing is wider.

7 replies so far

View Bill White's profile (online now)

Bill White

5072 posts in 4109 days

#1 posted 03-12-2017 07:18 PM

The bearings will have a number etched on themselves.

That’s the number that you should use.



View olrac's profile


9 posts in 1358 days

#2 posted 03-12-2017 10:12 PM

Bill, The number on the top bearing didn’t show up anywhere or cross reference to another. I did find a match by measuring though. It’s on the way. I’ll post the numbers once I have success Thanks for your quick response :)


View Woodknack's profile


12369 posts in 2528 days

#3 posted 03-13-2017 01:47 AM

What were the numbers? I just replaced bearings in a PC router, different model, and took the numbers right off the bearing.

-- Rick M,

View olrac's profile


9 posts in 1358 days

#4 posted 03-14-2017 06:24 PM

Rick, The number on the original top bearing was MRC 30zz-b or MRC 30zz-3. The numbers were tiny and printed on the rubber seal. Most places suggested a 608zz. It’s dimensions are 8×22x7. The original ws 8×22x10.4 I found a bearing from 123 bearings # 608-2RS-W103 8×22x10.3.

View MrUnix's profile


6948 posts in 2347 days

#5 posted 03-14-2017 06:59 PM

Are you sure it’s 30, and not 38? According to the MRC engineering handbook, they don’t have a ‘30’, but the 38 does have the same bore (8mm) and OD (22mm) that you describe. Grab a lupe or find a way to magnify the thing so you can be sure of the number. The 38ZZ-3 does exist in the wild :)

Anyway, it sounds like the one you found should work… 0.1mm difference could be just a measuring error.


-- Brad in FL - In Dog I trust... everything else is questionable

View Woodknack's profile


12369 posts in 2528 days

#6 posted 03-14-2017 07:07 PM

My PC router used an NTN 608Z. This is the bottom bearing, farthest from the cutter.
I bought this one:

Your other bearing may be an MRC WC88038, but I won’t swear to it.
8mm bore, 22mm od, 10.4 mm (.4”) width
(this is one of those weirdo mixed unit, metric/inch, bearings)

-- Rick M,

View DDWW's profile


90 posts in 775 days

#7 posted 03-19-2018 02:50 PM

I know this is old but if someone is looking here’s what I pulled out of and just replaced on my Rockwell version 100m. I found both replacements at VXB.Bearings through amazon w free shipping.

My 100m had a 77201 – 13 mm bore Hoover. I could not find one but I did find a 6201-13 2rs that is the same dimensions.

The other was a 9088 DD which was 8mm 22mm by 10mm and I used a 30/8ZZ Angular Contact Double Row Bearing 8×22x11mm
Easiest is to go with a Japanese made 608 series bearing, they are only 7mm instead of Avoid the Chinese versions used for skate wheels, I don’t think they will hold up.

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