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Cutter Head Bearing - Please Help

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Forum topic by nicksmurf111 posted 06-20-2014 04:26 AM 1005 views 1 time favorited 18 replies Add to Favorites Watch
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nicksmurf111

361 posts in 918 days


06-20-2014 04:26 AM

Topic tags/keywords: planer help bearing press puller belsaw

So I’m replacing the cutter head bearings in a Belsaw 9103 that I got for a pretty good price. One bearing was noisy and I think it was off balance.

I got the bearing off the chain reduction side off. The shaft slid out with a little encouragement, and the bearing rotated out of the pillow block after a little heat and some encouragement with an air hammer. The part of the bearing beneath the locking collar did shatter, but it all came apart without damaging the cutter head shaft.

The bearing on the motor drive side will not budge. I have the pillow block taken off the machine. I’ve heated it, lubricated it, beat it with a dead blow hammer, and I think that it’s only moved like 1/16”. I can get the locking collar to move back and fourth on the bearing ever so slightly. My three jaw puller isn’t large enough to fit around the pillow block. I’m a little worried that any more beating can potentially break the pillow block. Should I support the pillow block in a hydraulic press and try pushing the cutterhead out (catching it before it hits the floor)? The bearing will not rotate out of the pillow block until the shaft is removed. So putting a bearing splitter or 3 jaw puller on the bearing is out of question.

I can take it to a machine shop, but I think they will gouge me on labor. Last time I took something, they charged me nearly $100 to extract two bolts out of some car spindles.

The bearings are “208” size with a 1 1/2” inside diameter and 80mm outside diameter to fit a pillow block. I decided to pick up some hc208-24 bearings. I really don’t know what HC stands for, and what makes it different than a RA bearing, but it seems like RA’s are out of production. The HC bearing has a eccentric cam locking collar which matches what is on the machine. Surprisingly, one of the bearings I received seems to be bad, so I need to deal with the Ebay seller. He said to grease it up, but that didn’t help. I’ll be posting a YouTube video of that tomorrow.

Thanks ahead of time!

-- Nicholas


18 replies so far

View TiggerWood's profile

TiggerWood

271 posts in 1074 days


#1 posted 06-20-2014 04:52 AM

Cut it off.

View nicksmurf111's profile

nicksmurf111

361 posts in 918 days


#2 posted 06-20-2014 05:04 AM

Like I wrote above, it’s inside the pillow block. I can’t damage thr pillow block because it’s proprietary. I need to slide the shaft out without damaging anything accept the bearing itself.

-- Nicholas

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TiggerWood

271 posts in 1074 days


#3 posted 06-20-2014 05:12 AM

So, the bearing is still on the shaft, and the bearing is also still in the pillow block? Hmmmm

View runswithscissors's profile

runswithscissors

2192 posts in 1493 days


#4 posted 06-20-2014 06:57 AM

If you can figure out how to get it onto a hydraulic press, I think that’s your best bet. Sounds like one of those jobs where you can’t back up and can’t go forward. Hmmm. Better you than me.

-- I admit to being an adrenaline junky; fortunately, I'm very easily frightened

View kaerlighedsbamsen's profile

kaerlighedsbamsen

1177 posts in 1181 days


#5 posted 06-20-2014 08:18 AM

Make friends with the guys at the mechanics shop. Bring a crate of beer and some cake friday afternoon. Share your fascination with mechanics stuff and offer them to parttake in you little puzzle getting the machine apart. An investement well worth the effort…

-- "Do or Do not. There is no try." - Yoda

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nicksmurf111

361 posts in 918 days


#6 posted 06-20-2014 12:04 PM

kaerlighedsbamsen, I should. There is a young mechanic across the street from my work who is kind to me. He always does the work I can’t accomplish myself.

My bother-in-law has a press, but no tooling. I’m going to go fool with it tonight.

-- Nicholas

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nicksmurf111

361 posts in 918 days


#7 posted 06-20-2014 02:14 PM

I took a picture of it this morning on my way out.

-- Nicholas

View waho6o9's profile

waho6o9

7180 posts in 2045 days


#8 posted 06-20-2014 02:23 PM

What’s that top secret formula for seized parts?

ATF + kerosene or is it, ATF + gasoline?

Automatic Transmission Fluid (ATF) mix with another ingredient
and apply until it’s freed.

Good luck now.

View kaerlighedsbamsen's profile

kaerlighedsbamsen

1177 posts in 1181 days


#9 posted 06-20-2014 02:41 PM

Pictures help a lot! Hmm that should be an easy job for a large, adjustable puller

-- "Do or Do not. There is no try." - Yoda

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nicksmurf111

361 posts in 918 days


#10 posted 06-20-2014 02:43 PM

Well, gasoline would be bad. I haven’t tried soaking it yet for any length of time. If I can’t get it apart with either a dead blow hammer or an air hammer (which usually works on everything), I’m concerned how much better a press could actually do.

-- Nicholas

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nicksmurf111

361 posts in 918 days


#11 posted 06-20-2014 02:44 PM

kaerlighedsbamsen, what kind, like a large 2 jaw puller?

-- Nicholas

View Quanter50's profile

Quanter50

273 posts in 1764 days


#12 posted 06-20-2014 06:02 PM

I’ve had really good luck getting all kinds of seized metal parts apart with this stuff. It’s magic….I swear! Spray some all around and tap gently with a small hammer or block of wood. Like Frank’s Red Hot…..I put this sh!t on everything!

View TheFridge's profile

TheFridge

5765 posts in 954 days


#13 posted 06-20-2014 08:14 PM

A press set up for it is the best way. If a press can’t get it I don’t know what will. A 2 jaw puller might work.

-- Shooting down the walls of heartache. Bang bang. I am. The warrior.

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nicksmurf111

361 posts in 918 days


#14 posted 06-21-2014 12:03 AM

Will try the press tomorrow. I’m unsure if I’ll come up with adequate tooling.

-- Nicholas

View runswithscissors's profile

runswithscissors

2192 posts in 1493 days


#15 posted 06-21-2014 12:16 AM

Any kind of hammering, even with a dead-blow hammer, involves some rebound. A press applies steady pressure without rebound. It’s the only way I know for really tough jobs.

-- I admit to being an adrenaline junky; fortunately, I'm very easily frightened

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