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Machine Shop and Tool Talk

Unusual Brass Bearing

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Old 04-07-2018, 10:40:45 AM
Ronald E. McClellan Ronald E. McClellan is offline
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Default Unusual Brass Bearing

I started working on a machine called a Sample Grinder. The one gear was stuck tight in the bearing. After a couple of hours work the bearing came out with the gear. It is a split bearing with holes filled with graphite. I have never seen anything like this and would like to hear your comments about this. Ron
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Old 04-07-2018, 11:25:26 AM
JoeCB JoeCB is offline
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Default Re: Unusual Brass Bearing

I've seen bushings like that used on guide pins for die sets. Sliding motion , up and down not for rotation. Also, and this is just a guess from the color of the "brass" , it is in fact hard bronze, Al- Bz, not normal bearing material.. just a guess

Joe B
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Old 04-07-2018, 03:11:49 PM
dalmatiangirl61 dalmatiangirl61 is offline
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Default Re: Unusual Brass Bearing

I've seen a few like that. The FM 208 clutch uses something similar.
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Old 04-07-2018, 03:50:13 PM
ChipTosser ChipTosser is offline
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Default Re: Unusual Brass Bearing

We used them for die pin bushings and cam slide bearing surfaces.
They are intended to be used with oil only.
They are aluminum bronze base metal with graphite plugs to help retain oil.
As previously mentioned, not a high speed application. It could be used, if flooded with oil with plenty of clearance and the proper directional oil groves and scrapers to direct the oil.

---------- Post added at 03:50:13 PM ---------- Previous post was at 03:49:11 PM ----------

Oilies bearings
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Old 04-07-2018, 04:23:01 PM
mcostello mcostello is offline
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Default Re: Unusual Brass Bearing

I have some setting around here, let me know if You are interested as they have set here for around 20 years and just were headed for the great recycler in the sky. Also some that are bronze tinted mixed with carbon.
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