Thread: Bearing Oil
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The Natural Philosopher
 
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Default Bearing Oil

On Wed, 16 Nov 2005 08:14:10 -0000, nightjar wrote:

"raden" wrote in message
...
In message , nightjar
writes

"Andrew Gabriel" wrote in message
k...
What's a good bearing oil for a phosphor bronze (I think)
bearing in a small computer fan? Would a tiny bit of car
engine oil do?

Bronze bearings are usually intended to be self-lubricating.


Until they dry out


You are presuming that they are oil impregnated porous bronze bearings.
Decent self-lubricating bronze bearings have a suspension of lead in the
bronze and don't dry out, nor do graphite impregnated porous bronze
bearings.

Oiling them
runs the risk of oil + dust creating an abrasive mix that will quickly
wear
the bearing away.


Sorry, but ********


I spent more than a decade making and repairing industrial clocks. One of
the quickest way for anyone to wreck them was to oil the bronze motor
bearings.


Indeed. Those are very low torque low ROPM bearings indeed, and must be run
essntially dry.

The same is NOT true of motor bearings, which are high RPM and medium
torque. These must NOT be run dry.

Colin Bignell