mating teflon tree

[lukaluk11]

Hello everyone, can anyone solve my perplexity?? as always sure... and many thanks in advance for this.

My aplication: I have to mount bearings on an aluminum bushing and a teflon tree that will end up in the water of a pool. my questions are: what kind of shield is it recommended? and what tolerance to give to the aluminum bushing and the teflon shaft to have a perfect assembly where the wearable part will have to be only the bearing? can there have problems for lubrication of the bearing being the same immersed in water?

Thank you all!

 

[stebra]

you don't understand the situation you have, can you send an image in section?

 

[lukaluk11]

Section: Imagine an aluminum bushing with inside a steel bearing that takes the bike from a teflon tree.

My perplexity is:

1-what kind of shielding is recommended?

2-What tolerance to give the aluminum bushing and the teflon shaft to have a perfect assembly where the wearable part will have to be only the bearing?

3-ci can have problems for bearing lubrication being the same immersed in chlorinated water?

I have no experience with these materials and I would like to avoid trying at my expense. Thank you!

 

[cacciatorino]

1-what kind of shielding is recommended?

at least 2rs1 bearings but perhaps not enough

2-What tolerance to give the aluminum bushing and the teflon shaft to have a perfect assembly where the wearable part will have to be only the bearing?

Who's spinning in your application? the inner ring or the outer one? generally the rotating ring must be blocked by force (toll. m6), the fixed one with slight force as you will use shielded bearings and therefore with light internal friction (otherwise it was also good a free coupling).

3-ci can have problems for bearing lubrication being the same immersed in chlorinated water?

depends on the shielding, however if I don't remember correctly there are stainless steel bearings. You could think of making a fitting with seals that avoid water to get to the bearing.

Are you sure you can't replace your application with glycodur bushings? If you don't need extreme precision maybe so you'll get less maintenance scratches.

 

[lukaluk11]

I know glycodur, I know the teflon bearings that in my opinion for my application would be ideal, but unfortunately the prices are inaccessible and I cannot consider them. at least to the maintenance scratches. . .
thanks for the precious advice!

 

[sampom]

Hello everyone, can anyone solve my perplexity?? as always sure... and many thanks in advance for this.

My aplication: I have to mount bearings on an aluminum bushing and a teflon tree that will end up in the water of a pool. my questions are: what kind of shield is it recommended? and what tolerance to give to the aluminum bushing and the teflon shaft to have a perfect assembly where the wearable part will have to be only the bearing? can there have problems for lubrication of the bearing being the same immersed in water?

Thank you all!

I know that a "standard" bearing immersed in the pool hard from christmas to s.stefano.:biggrin:
apart from the seals, which however the 2rs cannot "seal" at pressure, but also the outer rings will still be attacked by corrosion.
or insert them into a sort of "snap" tin / seal (as suggested by hunter) you will have to build, or (better according to me) you will be obliged to use specific products, stainless steel bearings or anything.. I'd like to inform you about the technical assistance of skf or others.

greetings
Mar

 

[Focus]

all seem more expensive than glycodur.


Hi.

 

[sampom]

all seem more expensive than glycodur.

No doubt!

It's always the usual speech, those who want to save you at all costs in the end go to spend 3 times as much for project ca@ates.
without counting the bad figures. .

greetings
Mar

 

[stefanobruno]

No.
working hours/days?

Bye.

 

[sampom]

No.
working hours/days?

..and how big the size that should have these bearings?
and how many pieces are we talking about?

greetings
Mar

 

[stefanobruno]

No.
working hours/days?

Bye.

..and how big the size that should have these bearings?
and how many pieces are we talking about?

greetings
Mar

... and you should also tell us the measurements of the pool and where it is, so we calculate the working temperature of the bearing and then we come to verify its operation. :biggrin:

Bye.

 

[sampom]

... and you should also tell us the measurements of the pool and where it is, so we calculate the working temperature of the bearing and then we come to verify its operation. :biggrin:
Bye.

and the share to which the tool will be immersed?

greetings
Marco:smile:

 

[body]

in the water with the salts (chlorine) does not resist even the inocx.any problem less you have with aisi 316 but must be with glossy mirror finish.So it uses plastic bushings, point and just.:wink: