blind bearing tool fail

[toplessHO]

have several bearings in a transmission case to remove
got this one from Amazon on a guess.
I first noticed that the smallest one was used and fingers bent.
turns out I needed that size for one of the bearings and because it was already injured it failed miserably
so was able to coax the next size up collet by using a small hose clamp around the collet fingers and lightly tap the collet in
with a rubber hammer.
success on 3 bearings with this.
moving on to the inner case it wasnt so good as the fingers bent and no joy of removal.
So now its off to Harbor freight to get what looks like more of the same cheap chinese ****.
Does anyone sell just the collets that are of a good quality?
I have a nice OTC silver ******* so dont need a slide hammer.

 

[vwpieces]

Look into Kukko
Made in Germany

 

[bwringer]

Dang, ***** that scAmazon sent you used ****. Too late to send it back?

I have the HF kit, and it appears identical. It works fine within its limits, but it can definitely get very difficult to move some bearings. It's not a monster tool, and if you're working on a lightweight aluminum assembly, it can be very difficult to hold the part safely and firmly and develop enough "impulse" to yoink the bearing.

 

[tripplejl]

Delete

 

[vwpieces]

rillex puller is another type that will work.

 

[Jagmandave]

can you heat the case to help remove the bearing?

 

[toplessHO]

can you heat the case to help remove the bearing?

yea I sent son a text a few hrs ago offering my 1500W heat gun that I have several nozzles for.
Too much wiring,fuel etc for open flame.

 

[toplessHO]

Dang, ***** that scAmazon sent you used ****. Too late to send it back?

I have the HF kit, and it appears identical. It works fine within its limits, but it can definitely get very difficult to move some bearings. It's not a monster tool, and if you're working on a lightweight aluminum assembly, it can be very difficult to hold the part safely and firmly and develop enough "impulse" to yoink the bearing.

tool of choice to hold case while yanking was a 2x12 3 ft long.
I drilled a 1 inch hole thru the board,inserted the slide hammer thru it and let the case half rest flat on the backside of board.
worked like a charm for the 3 bearings shown.
The inner case is the real problem child.

 

[toplessHO]

UPdate
the Harbor freight tool appears the same until you dive into using it
The collet expands closer to the end so less chance of it bending.
With a coupon for today it was same price as the POS from Amazon.
Not saying I like using Harbor freight tools but in a pinch this worked
where other cheap chinese tools failed

 

[kelpaso1]

can you heat the case to help remove the bearing?

That hardly ever works. as you heat the case the bearing race is also heating up so your getting nowhere.

 

[toplessHO]

inner case done ready for re assembly

 

[ChefRex]

That hardly ever works. as you heat the case the bearing race is also heating up so your getting nowhere.

Really? Aluminum case will expand more than the steel bearing.

 

[CallumRD1]

That hardly ever works. as you heat the case the bearing race is also heating up so your getting nowhere.

That depends on a couple variables. If the case is aluminum and the bearing is steel then for a given temperature change the aluminum will expand more than the steel. Additionally, heat flow is not immediate. If you have a way of preloading tension on the bearing you can heat the case and it will expand a bit before the bearing heats up and expands. This can allow the bearing to pop out. I used this trick just last week to remove a seized inner race from a shaft. I preloaded the bearing puller as much as I dared then hit the bearing with a torch. A couple seconds later it popped free with a loud crack. It had expanded just enough for the puller to be able to move it.

 

[M6erfan]

Really? Aluminum case will expand more than the steel bearing.

Correct. I heat aluminum cases in an oven all the time and often the steel bearings drop right out.

 

[bob15]

Good collets: Snap On https://shop.snapon.com/categories/Blind-Hole-Bearing-Set-Components/675411

They haven't failed me yet.....

 

[Jagmandave]

Heating the case.....classic Minis use several bearings pressed into a case similar to this. By heating the case oftimes you can turn the case over and smack it against a 4X4 piece of wood and the bearing/race will drop right out.

 

[Ingram306]

Used this once (with a punch instead of a drill bit) on a dirt bike case and it worked like a charm. Skip to about 4:50 if you don’t feel like watching the whole thing.

 

[FMB4]

That hardly ever works. as you heat the case the bearing race is also heating up so your getting nowhere.

Aluminum expands much faster the steel. This is how steel valve guides and iron, etc, cylinder liners are installed into alloy heads and cylinders. Do it right and you'll be OK (direct the heat towards the alloy and not the steel). Note: I've used heat to remove old/worn valve guides followed by installing new replacements many times without a problem (as a dealership motorcycle mechanic). Typically you would use a torch rather than a heat gun for this.

 

[Lucid Moments]

I am not really a big Snap-On fan, but I broke a blind bearing puller trying to get a pilot bearing out of my E30 and couldn't find another small enough except from Snap-On in the time crunch I had at the time. Really like the design of their tool. You pay for it though.

 

[2ndGearRubber]

I have Sir Tools ST9006. Via the snap-on website, it's made in taiwan. I did break one of the tiniest pullers battling something very stuck, but since snap-on has this tool in their supplemental catalog my driver was able to order me one as a replacement.

 

[corn chip]

chinese garbage strikes again !

yep just put the cases in your kitchen oven and the bearings will sometimes fall out on their own. try 200-250 for 15min. then try some light taps with rubber mallet. if that doesnt work you may need to get a new blind collet and go that route.
personally i wouldnt try using any kind of heating torch but thats just me

also i would still heat the cases in the oven even if using the blind puller. it decreases the interference fit and lessons any chance of damaging the bearing bore by ram rodding the bearing out. if you ****** up the bore youll kick yourself in the ***

 

[B_Bimmer]

I tried cheap sets, they always fail eventually. After I got my first good set I was so pleased with the difference I have since acquired the snap on set and the big OTC set that is quite difficult to find. I prefer the OTC set most of the time but the different sized yoke in the snap on set occasionally works better.

 

[toplessHO]

chinese garbage strikes again !

yep just put the cases in your kitchen oven and the bearings will sometimes fall out on their own. try 200-250 for 15min. then try some light taps with rubber mallet. if that doesnt work you may need to get a new blind collet and go that route.
personally i wouldnt try using any kind of heating torch but thats just me

also i would still heat the cases in the oven even if using the blind puller. it decreases the interference fit and lessons any chance of damaging the bearing bore by ram rodding the bearing out. if you ****** up the bore youll kick yourself in the ***

that might work ok for the outer case,but the inner case is part of the engine

 

[M6erfan]

UPdate
the Harbor freight tool appears the same until you dive into using it
The collet expands closer to the end so less chance of it bending.
With a coupon for today it was same price as the POS from Amazon.
Not saying I like using Harbor freight tools but in a pinch this worked
where other cheap chinese tools failed

Glad it worked out. I have that HF set and while its not the greatest quality, it does a pretty good job.

 

[Steve_P]

I also have the HF set. Mine is ~20 years old, so it might not be identical to todays, but it's worked for me the few times I've used it. I'm sure the OTC is better, and I'm not saying it's the same, but my HF looks identical to the OTC set less the case. If I was going to buy tomorrow, I'd probably just get the OTC set as I'd assume it's better, and you might actually be able to get replacement parts.
I also use heat on the case when possible as aluminum typically expands 2-3X more than steel.
As far as the grease method, I've tried it once and it makes a huge mess. Wet newspaper works great and is much easier to clean up.

 

[corn chip]

that might work ok for the outer case,but the inner case is part of the engine

well your photos are small and only show a small portion of the over all picture. are you trying to remove the bearings with one half of the crankcase still in the chassis ?

 

[M6erfan]

I also have the HF set. Mine is ~20 years old, so it might not be identical to todays, but it's worked for me the few times I've used it. I'm sure the OTC is better, and I'm not saying it's the same, but my HF looks identical to the OTC set less the case. If I was going to buy tomorrow, I'd probably just get the OTC set as I'd assume it's better, and you might actually be able to get replacement parts.
I also use heat on the case when possible as aluminum typically expands 2-3X more than steel.
As far as the grease method, I've tried it once and it makes a huge mess. Wet newspaper works great and is much easier to clean up.

Bread works too. . .

I heard about this trick decades ago but I've never tried it.

 

[Steve_P]

The grease, bread, paper, ground beef ... hydraulic method works on sealed bearings. YMMV if not sealed.

 

[M6erfan]

The grease, bread, paper, ground beef ... hydraulic method works on sealed bearings. YMMV if not sealed.

And some salt, pepper, and the heat wrench, you almost got meatloaf

 

[toplessHO]

well your photos are small and only show a small portion of the over all picture. are you trying to remove the bearings with one half of the crankcase still in the chassis ?

yes and it was successful thanks

 

[bwringer]

Thanks for the reports back, toplessHO. Glad to hear you got 'er dun did!

Very interesting to hear that the HF and Amazon sets were different.

 

[toplessHO]

I read some comments that the HF one had been redesigned.
perhaps it was same design as the Amazon one and they saw too many failures,GASP,
could it be that they really do pay attention?
After all Joe Q Public is the R&D dept with most of these chinese tools.

 

[csp]

I lucked out and bought this Crozier Machine Tool puller at an auction for $2.50. Apparently nobody else knew what it was. It looks like they are still made. Mine has a property tag from the US Navy on it.

Bushing and Bearing Extractors, Series 86 and 100 - Crozier ...

Bushing and Bearing Extractors, Series 86 and 100 - Crozier Read more about arbor, bearing, bushing, extractor, arbors and extractors.

www.yumpu.com

 

[B_Bimmer]

The small stinger series OTC set is NOT their good set. They have a different set that is twice the size. Part number 981. It's amazing. It also appears to be NLA.

 

[toplessHO]

I lucked out and bought this Crozier Machine Tool puller at an auction for $2.50. Apparently nobody else knew what it was. It looks like they are still made. Mine has a property tag from the US Navy on it.

Bushing and Bearing Extractors, Series 86 and 100 - Crozier ...

Bushing and Bearing Extractors, Series 86 and 100 - Crozier Read more about arbor, bearing, bushing, extractor, arbors and extractors.

www.yumpu.com

I think that deserves a you **** award