Another IMS bearing thread

[Walter White]

I hit the "Submit" button before I could post pictures.

[Walter White]

Dag nabbit! I did it again. If there is a way to delete these post please let me know.

[Walter White]

Third try is a charm.
An idea for venting IM shaft.



An idea to get grease into bearing


You can't see it too well but I have an O-ring between the flange and bolt to connect the conduit.

[boxster]

San rensho. Thanks for the tip. You think ill be able to identify where the noise is coming from with a stethoscope? Ive never used one, so i have no idea what to hear with it. I will buy one from a drug store. I will take it with me to my mechanic and try to find where the noise is coming from whilst on the lift. As i said, i can hear nothing from inside the car or from near the wheels,the noise is that faint. When i crawled under the car i heard a slight ticking noise which seemed to be constant but couldn't tell if it quickens with the revs, there was nobody with me to press the accelerator whilst i was under the car.

[san rensho]

Originally Posted by boxster

San rensho. Thanks for the tip. You think ill be able to identify where the noise is coming from with a stethoscope? Ive never used one, so i have no idea what to hear with it. I will buy one from a drug store. I will take it with me to my mechanic and try to find where the noise is coming from whilst on the lift. As i said, i can hear nothing from inside the car or from near the wheels,the noise is that faint. When i crawled under the car i heard a slight ticking noise which seemed to be constant but couldn't tell if it quickens with the revs, there was nobody with me to press the accelerator whilst i was under the car.

You don't need a medical scope. Auto Parts stores sell them for about $10. Your mechanic should probably have one. Of he is experienced with it, he will find the culprit fairly quickly and can also listen to the IMSB to determine if anything is wrong.

[san rensho]

Originally Posted by Walter White

Third try is a charm.
An idea for venting IM shaft.



An idea to get grease into bearing


You can't see it too well but I have an O-ring between the flange and bolt to connect the conduit.

Just remember, according to the Heisenberg principle, just the act of observing the IMSB will cause it to change!

[kjc2050]

Originally Posted by Walter White

Dag nabbit! I did it again. If there is a way to delete these post please let me know.

Why not just edit the post to include the pictures?

[Walter White]

"Why not just edit the post to include the pictures??"
If you know how please let me know. I can't find any way to either delete or add photos to a post once it has been posted.

"Just remember, according to the Heisenberg principle, just the act of observing the IMSB will cause it to change!?"
Was that Heisenberg? I thought it was some ancient Greek philosopher.
There's a Breaking Bad marathon coming up on AMC soon. But I live for Gold Rush now. Change.

"You think ill be able to identify where the noise is coming from with a stethoscope?"
You can use a length of garden hose. That works pretty good too.

On the vented picture, the vent should go up, and maybe a short section of tubing pressed into the vent hole, going up then bent down like an upside down J to help keep oil from building up in the vent.
Also, realized that the improved bolt has an O-ring that may interfere with my idea. Hopefully it is not too big to interfere.

[Nine8Six]

Would it be common sense to implant the bearing located inside your lathe's headstock into your boxster then?!

I have a few 5,000~25,000RPM spindles that runs nsk's. We've machined over 10,000 hours on each of them. Same bloody bearing and still looking good (of course)

What are you doing exactly there?

[Walter White]

I would assume your bearings are properly lubricated. I am testing with no lubrication. So far I have found that the J type cage appears susceptible to vibration, causing metal fatigue resulting in the cage breaking apart. But I also theorize that a good grease or gear oil will suppress the vibration and the J cage will be fine under those conditions.
I have also found that the W type cage appears impervious to vibration. Is it the best all-around choice? Maybe, maybe not. But so far I am putting my money on the W type cage for my next bearing.

[kjc2050]

Originally Posted by Walter White

"Why not just edit the post to include the pictures??"
If you know how please let me know. I can't find any way to either delete or add photos to a post once it has been posted.

Click "Edit;" click "Go Advanced;" edit post and add pictures as needed.

[Jake Raby]

Carry out these experiments within an engine and you'll see that your observations change.

Over time we have found that not just the strength of the cage matters, but also the weight of the balls and the cage. This is because the inner race is parked and the outer race is rotating, among other things.

Of course, the only real solution to the issue is removing the balls and the cage completely from the equation.

[Walter White]

Originally Posted by Jake Raby

Over time we have found that not just the strength of the cage matters, but also the weight of the balls and the cage.

That is why I haven't tried PEEK or PTFE cages with steel balls. On the other hand, the J and W type cages both have a track record with the OEM steel ball IMS bearing.

[san rensho]

Originally Posted by Walter White

"Why not just edit the post to include the pictures??"
If you know how please let me know. I can't find any way to either delete or add photos to a post once it has been posted.

"Just remember, according to the Heisenberg principle, just the act of observing the IMSB will cause it to change!?"
Was that Heisenberg? I thought it was some ancient Greek philosopher.
There's a Breaking Bad marathon coming up on AMC soon. But I live for Gold Rush now. Change.

"You think ill be able to identify where the noise is coming from with a stethoscope?"
You can use a length of garden hose. That works pretty good too.

On the vented picture, the vent should go up, and maybe a short section of tubing pressed into the vent hole, going up then bent down like an upside down J to help keep oil from building up in the vent.
Also, realized that the improved bolt has an O-ring that may interfere with my idea. Hopefully it is not too big to interfere.

The Heisenberg uncertainty principle. It's kinda like quantum rocket surgery and stuff.

Uncertainty principle - Wikipedia, the free encyclopedia

[Walter White]

Revised drawings
Vent and slosh tubes to help keep vent passage clear of oil



Modified bolt to allow new grease injection directly on to bearing, and provide shoulder to keep push-on cages from popping off.

[Walter White]

Originally Posted by san rensho

The Heisenberg uncertainty principle. It's kinda like quantum rocket surgery and stuff.

Uncertainty principle - Wikipedia, the free encyclopedia

That's good. I think I will put that on my You Face Twitter Tube Book.