DeWalt DW733 planer, cheap bearing fix. Double the life of your bearings.

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Forum topic by PASs posted 01-04-2014 01:52 AM 6903 views 2 times favorited 8 replies Add to Favorites Watch
View PASs's profile


595 posts in 3094 days

01-04-2014 01:52 AM

Topic tags/keywords: tip trick resource planer milling dewalt dw733 planing bearings slipping repairs maintenance pnds selling

I got a DW733 planer at an estate sale a few year ago.
I’ve run a few hundred linear feet of hardwood through it since I got it.
Last year the feed rollers started skipping, bad for planing boards.
Did some research that indicated a worn chain, so I replace the roller to roller chain.
That helped for a while, but then it started to slip again.
I pulled everything apart again, and noticed that both chains had a lot of slack.

I started wiggling things around and the outfeed roller had a lot of play in the bearing.
I popped the sprockets and chains off and pulled the bearing out.
The bearing is a square babbet with no obvious lubrication system. It only turns about 60 rpm so speed isn’t the issue, but when I pulled it out it looked like it was running dry. And the shaft had worn about 0.1 inches of the bearing away.

Next day I called the DeWalt Service Center and they put the bearing (and a backup) on order, but it was the holidays and it would take a week to get them in.
I went out to the shop to figure out how to plane the lumber I needed and got to looking at the bearing again.
I noticed that the wear was at a 45 degree angle that was in the direction of the gear box sprocket.
I (cleverly) also noticed the the rest of the bearing was in great shape, it had almost no wear because the shaft had pulled way from it as soon as it started to wear. I also noticed that the bearing itself was pretty much square shaped.
I had nothing to loose, so I rotated the worn bearing 180 degrees, put some grease on it and put everything back together. It was obvious as soon as I put the chains and sprockets on that the slack was greatly reduced.
I fired up the planer and ran a few boards through it. Sure enough, no slipping. So I put the covers back on and went to work.

I picked up the spare bearings today, but will wait to put them in until I have another problem. And I have lubricating the bearings on my PMS plan now. (Like I have a PMS plan.) ((That’s Preventive Maintenance System, not the other thing.))

-- Pete, "It isn't broken, you just aren't using it right."

8 replies so far

View RibsBrisket4me's profile


1554 posts in 2501 days

#1 posted 01-04-2014 02:20 AM

Great job figuring that out and thanks for sharing.

View waho6o9's profile


8189 posts in 2573 days

#2 posted 01-04-2014 02:50 AM

Thanks for shortening the learning curve on my 733!

View Roger's profile


20928 posts in 2800 days

#3 posted 01-04-2014 01:22 PM

Wow! Those are surely egg shaped. Thnx for the post Pete. I have a friend that has a 735, I can give him a “heads-up”

-- Roger from KY. Work/Play/Travel Safe. Keep your dust collector fed.

View b2rtch's profile


4861 posts in 3044 days

#4 posted 01-04-2014 01:35 PM

Could you install a brass bushing in there?

-- Bert

View PASs's profile


595 posts in 3094 days

#5 posted 01-04-2014 02:05 PM

Bert, Probably could, but it’s a babbitt-type material, the staple of non-rotating bearings for a long long time.
And the replacements were only a couple bucks each.

-- Pete, "It isn't broken, you just aren't using it right."

View b2rtch's profile


4861 posts in 3044 days

#6 posted 01-04-2014 02:23 PM

Even a needle bearing should work and work for a long time and reduce friction

-- Bert

View Bobsboxes's profile


1367 posts in 2660 days

#7 posted 01-04-2014 02:35 PM

Glad to hear you got your PMS under control. Good short term fix.

-- Bob in Montana. Kindness is the Language the blind can see and deaf can hear. - Mark Twain

View PASs's profile


595 posts in 3094 days

#8 posted 01-04-2014 02:36 PM

I think the limiting factor in replacement would be the size of the current bearing.
I don’t think there is enough room to replace it with a needle bearing.
And since I don’t have a machine shop I’d also be concerned with alignment and how that would affect feeding wood through it. (Although with all the wear in that one bearing it was surely not holding pieces down equally on both sides.)

-- Pete, "It isn't broken, you just aren't using it right."

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