Bearing Selection 2

[ERIMechEng]

First off, a preemptive thank you for anyone willing to help. I'm trying to find a maintenance-free bearing that will handle axial and thrust loads. I suppose an ideal solution would be a sealed, sheilded tapered roller bearing, but I can't find any. Shaft dia: about 1", low speed, 2000 lb axial load, unknown (but low) thrust load. Any tips would be greatly appreciated.
-Matt

 

[BobM3]

I normally assume "axial" and "thrust" to be the same. Which is the "radial" load?

 

[MikeHalloran]

Tapered roller bearings don't ordinarily come with seals or shields. Ball bearings often do.

If the 2000 lb is a radial load, you should have no trouble finding one that will deal with it.

For 2000 lb axial ( := thrust ), you'll need a bigger ball bearing.



Mike Halloran
Pembroke Pines, FL, USA

 

[Clyde38]

Here is one source for both information and bearings. . .

http://www.timken.com/en-us/Pages/Home.aspx

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http://www.linkedin.com/in/clydehancock

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[diskullman]

Timken offers sealed tapered roller bearings in a TSL sealed version, other brands too. L44643/l44610 is available sealed and is 1" bore . I think the combined number with seal is l44600LA

Russell Giuliano

 

[imcjoek]

SKF (or similar) angular contact ball bearings are another option. They are available with shields. You need to verify load capacity.

 

[diskullman]

I only know of INA making angular contact bearings with shields or seals, but are all metric

Russell Giuliano

 

[BrianPetersen]

If the thrust load (aligned with the shaft) is low compared to the radial (90 degrees to the shaft) load, any suitably-sized ordinary deep-groove ball bearing with seals will do the job.

 

[ginsoakedboy]

The phrase "maintenance free" should ideally be accompanied by a description of the environment/application. Also, how much life are you expecting? The replies will be more helpful that way.

Also, I agree with BrianPeterson. Most radial ball bearings can withstand small thrust loads anyway.

 

[ERIMechEng]

Wow....thanks for the quick responses. As clarification: 2000 lbs radial load, with lower thrust load. Environment is on the tarmac at naval air stations, so probably pretty clean environments. Lifetime: not really sure. I'm just trying to select something that would require as little maintenance as possible, while trying to keep the lifetime logistics (replacement) cost down as well. I would be very happy to select a deep-groove ball bearing, but any info on how to estimate allowable thrust loads would be greatly appreciated. Otherwise, I could go with angular contact bearings, but I run into the same problem with ratings.
/R- Matt

 

[MikeHalloran]

Get a bearing catalog. Study it. All the material you need is in there.

Get a couple of different catalogs; some of the presentations are more easily comprehensible.



Mike Halloran
Pembroke Pines, FL, USA

 

[BobM3]

For a high radial load and low thrust load and low speed operation you may be able to get by with just a sealed, grease filled radial ball bearing. I like SKF's web site. Try this:

http://www.skf.com/portal/skf/home/library?contentId=448003&lang=en

 

[diskullman]

Timken offers sealed tapered roller bearings in a TSL sealed version, other brands too. L44643/L44610 is available sealed and is 1" bore . I think the combined number with seal is L44600LA

These are commonly used in hevy duty caster wheels with a lube fitting.

Russell Giuliano

 

[ERIMechEng]

Thank you to all, esp: BrianPetersen & imcjoek. I think I'm going to go with a double row angular contact ball bearing with double seals. Cheap and (hopefully) effective, and likely easily replaced once the bearing has run through its life cycle.

 

[electricpete]

First off, a preemptive thank you for anyone willing to help

I guess you were unsuccessful in preempting the help?


=====================================
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[NomLaser]

I have used DRAC bearings in the past and they worked well, even in dirty environments. Just be sure to get sealed and not shielded.

 

[ginsoakedboy]

electricpete, funny!