1/4x3/8 bearing needed

[Mitchg07261995]

hello, im thinking about adding bearings to support the shaft of a stirling engine that i am making in my precision machining class at a local technical school, i need the bearings to be 1/4''i.d and 3/8 o.d, and hopefully 3/16'' wide
thank
P.S i need two of them

 

[Swifty]

Can't find my bearing number book, this would have given me the code for your bearing making it easier to find.

Paul.

 

[Swifty]

R168ZZ bearing is 1/4 ID x 3/8 OD x 1/8 wide, shielded both sides. This is the closest that I can find at the moment. The side shields can be removed if not required.

Paul.

 

[Mitchg07261995]

thanks a bunch swifty! that helps out a bunch ill order some within the next couple weeks. I have to ask my teacher if i could modify a couple parts for the bearings, the shaft supports. As they are now it would be impossible to install a bearing, im gonna make the supports .125'' taller and keep all the same hole locations

 

[portlandron]

If they are sealed bearings you will want to remove the seals. The seals will cause to much drag for a sterling type engine.

 

[va4ngo]

you may be able to use a router bit bearing as a cheap alternative. Usually aroubd $5.00. here in Australia

 

[GailInNM]

Most hobby shops that deal with radio control cars will have them. The Duratrax brand is common and a package of 2 is about US$ 4. Cheaper than ordering them if you have a such a hobby shop nearby.

In the US, one of the best sources I know of for small low cost bearings is:
http://www.avidrc.com/product/1/bearings/
Most of their small bearings are US$1.00 for standard metal ball bearings. Right now they show the 1/4 x 3/8 as out of stock for non-flanged but flanged in stock. Rare for them to be out of stock so they will probably have them in soon. Almost always same day shipping and very reasonable shipping and handling charges. I have used over 100 bearings from them in the last few years with good results.
Gail in NM

 

[Mitchg07261995]

thanks Gail, luckily my town has a bunch of hobby shops about 5. One of them is about 3 miles away so ill check them out today

 

[2manyhobbies]

Not exactly on topic, but when looking for a bearing number I usually use Motion Industries parametric search - it is a good guide to what bearings are commercially available. They also have a great deal of power transmission products.

http://www.motionindustries.com/motion3/jsp/mii/index.html

Brad

 

[e.picler]

You may want to take a look on this link.
http://www.vxb.com/ They have all kinds of bearings.
You can search by size. I use them to buy small bearings, very cheap

Good luck.

Edi