Stuck bearing case suggestions

[drdwb]

Open to any and all suggestions on how to remove the bearing casing from the hub. I’ve looked through the forum search about it but I don’t have a tool that can get in from the back side, I do have a hand drill and assorted bits, thinking if I could drill a couple small holes it might weaken it enough. Even being careful and slow I might screw up the bearing seat. Any ideas. No chisels along. Long way back into town. A bearing puller would be no help now.

[Guzzidad]

   I wonder if it would work if you got a 10-24 coupling nut and a couple of 10-24 set screws. Put the screws into the coupling nut and insert into the bearing and then unwind the set screws tight into the race. Then punch it out from the other side.

[Antietam Classic Cycle]

Go to your friendly local welder and have him run a bead around the inside of that outer race. That'll shrink it enough that it will come right out.

You could try heating the hub - I'd remove the brake discs first.

[guzzisteve]

If there is any sticking up from bearing stop in the hub you could just use a long punch on that edge. Otherwise, what Charlie said.

[ridingron]

If there is any sticking up from bearing stop in the hub you could just use a long punch on that edge. Otherwise, what Charlie said.

Next time you have the bearing out, fix up the designer/engineers screw up. Use a file or dremel or whatever and put 2 or 3 scallops in the hub so you can punch out the outer race of the bearing next time.

[guzzisteve]

Just changed my fronts a few years ago cause front end felt funny but w/sidecar you don't feel it UNLESS you have sidecar in the air.

[Dirk_S]

Just changed my fronts a few years ago cause front end felt funny but w/sidecar you don't feel it UNLESS you have sidecar in the air.

Good. To. Know. Thanks, Steve.

[n3303j]

If you still have the inner race and balls you can just place the inner race in position and drop in some balls. Then distribute the balls around the perimeter and drive the assembly out by impacting the inner race.

[DoubleGuzzi]

You guys make it sound so easy! 
I've spent an hour or so, in my cold garage, trying to get my rear wheel bearings out (disc rotor off).
The badly worn rotor side is being particularly stubborn, though has a very small ridge on the inner race, with respect to the loose bearing spacer - unlike the near flush drive side.
A cheap three leg puller arrived today but the legs get insufficient purchase to grip under tension and their Chinese metal is turning to chocolate (no surprise there). I think the outer race has moved a small amount and is just proud of the casing*.
I have a wee (cooking) flame torch and a heatshrink hot air gun but neither are likely to provide any significant heating of the casing, given that the wheel hub is a large aluminium heatsink. Need a proper blowtorch, methinks.
A few whacks with a heavy hammer and a large screwdriver, in a circular fashion around the inner race, has yielded little so far..

*In writing this up I've now got inspiration i.e. a light bulb moment. The worn out bearing must've moved significantly! As it stands, there is now no space to refit the dust seal, so it has to have moved out that much. I reckon the outer race is sitting ever so slightly squint, so I'll "carefully" whack it flush, then try knocking it out again. Phew, I have a plan to go forward. 

[guzzisteve]

Buy a torch bottle & a punch(drift) not a screwdriver & use some penetrating fluid. Proper tools for proper work.

[SIR REAL ED]

Charlie nailed it.

It is a walk in the park for any welder with a TIG setup.

Oooops, weldor not welder!

It does not get any easier than what Charlie has described.

3-4 beads a half inch long and it will probably fall out.

[DoubleGuzzi]

Cheapskates like me, try to make do with what they've got. How the heck the guys on another thread (https://wildguzzi.com/forum/index.php?topic=124966.msg1920404) manage to change wheel bearings at the side of the road, sure beats me. Impressive and/or little corrosion.

Oooops, weldor not welder!

Got it right first time, for the other side of The Pond. 

[drdwb]

Rodkyl had the winning solution in my case.dremmel with metal disc cut out angles to case 12 3-6-9 than cut out as much as I could, small pry bard broke it out in chunks. I’m sure the welder solution works better, don’t see many welders at state parks though.
The picture shows the left side intact, right side in parts.
Now installed new ones,made in china bought at NAPA. They work and we’re riding again.
Thanks for feedback from Guzzi family.

[ridingron]

Did you pry open the seal and check for grease? The Chinese are as bad if not worse than Luigi.


Get a "good" set and install them when you get back home.

[Antietam Classic Cycle]

I’m sure the welder solution works better, don’t see many welders at state parks though.

If you had included that pertinent bit of information in your original post, it would have helped...

Curious where one finds a Dremel with metal cutting discs at a campground. 

[drdwb]

Did you pry open the seal and check for grease? The Chinese are as bad if not worse than Luigi.


Get a "good" set and install them when you get back home.

I’m not sure where to find a higher quality set, the ones I got at NAPA are from China and all they had, would it be a different SK #?  I’m wondering why roller bearings instead of ball bearings couldn’t be used?
I kept the remaining left side, it’s still functional although seems like it drags a bit. Just to satisfy the curiosity, maybe in a week or 2, when I’m home I’ll try to open it up and check grease, might be hard to do without the heat burning up what’s inside.

[DoubleGuzzi]

I’m not sure where to find a higher quality set..

Managed to whack out my two wheel bearings today. Had just enough purchase to drive out the stuck outer race (just like yours). I'm replacing them with the cheapest I could find on the bay, which happen to be allegedly good quality PFI 'murican branded.

[SIR REAL ED]

Rodkyl had the winning solution in my case.dremmel with metal disc cut out angles to case 12 3-6-9 than cut out as much as I could, small pry bard broke it out in chunks. I’m sure the welder solution works better, don’t see many welders at state parks though.
The picture shows the left side intact, right side in parts.
Now installed new ones,made in china bought at NAPA. They work and we’re riding again.
Thanks for feedback from Guzzi family.

Good deal!

A workable technique for sure.

[n3303j]

Quality bearings are cheap enough. These are prices for a pair.

[ridingron]

Managed to whack out my two wheel bearings today. Had just enough purchase to drive out the stuck outer race (just like yours). I'm replacing them with the cheapest I could find on the bay, which happen to be allegedly good quality PFI 'murican branded.

You may not get what you paid for but you always pay for what you get.

[drdwb]

If you had included that pertinent bit of information in your original post, it would have helped...

Curious where one finds a Dremel with metal cutting discs at a campground. 

Charlie, have you been to many RV parks or State Parks that have Class A or Class C RVs? A lot of these folks especially those that live in their rigs have a surprisingly good assortment of tools/ equipment. Many remind me of Guzzi folks. And it’s very much like going to a Guzzi rally, be very careful when you pull out your tool box because you will suddenly have a lot of old guys milling around waiting to be asked for their opinion. Some will just pull up a lawn chair with a beer to watch but There are also a lot of Red Green types traveling in those rigs. The experienced ones, do their own electrical AC/DC work, plumbing and mechanical stuff, because they have to. The cost of mobile RV service guys is astronomical. And like a Guzzi rally some know they’re shit and some are dangerous with tools.
 Check out the Robin Williams movie “RV” I think. Last October I watched a crew of campers work together for a day they removed and replaced a guys roof air conditioner, they had all the tools/ equipment they needed, replacement AC was delivered to the site by UPS. And after a group project the beer flows as they sit around and admire their work and share stories.  I’ve yet to see a welder pop out, but I have no doubt some guy is carrying one around hoping to be the next legend.

[Antietam Classic Cycle]

Many state parks have a maintenance department with welder and someone that knows how to use it. 

[guzzisteve]

Glad you got an idea from RoadKill, sure miss that guy here. TOO BAD members here gave him so much crap that he left. Just like Roper, Beetle, and many others. At least I got to meet him & hang out for an evening when he was here in GA.

[SIR REAL ED]

Glad you got an idea from RoadKill, sure miss that guy here. TOO BAD members here gave him so much crap that he left. Just like Roper, Beetle, and many others. At least I got to meet him & hang out for an evening when he was here in GA.

I am intrigued.  This sounds like the basis for at least a dozen good campfire stories.....

[Terry Reedy]

Open to any and all suggestions on how to remove the bearing casing from the hub. I’ve looked through the forum search about it but I don’t have a tool that can get in from the back side, I do have a hand drill and assorted bits, thinking if I could drill a couple small holes it might weaken it enough. Even being careful and slow I might screw up the bearing seat. Any ideas. No chisels along. Long way back into town. A bearing puller would be no help now.

[Terry Reedy]

Snap on makes a tool for that, parabolic bearing race punch