lubrication for oven fan

[harry]

Well if you buy a new ball race, it will be packed in grease.

Ball races should not be subject to lateral forces unless they are taper ball races.

[Brian Gaff]

Yes look at the problems on the international space station with the race ring of one of the solar array bearings and they only turn slowly, once debris is allowed in there it just acts to grind away the surfaces.

Brian

[The Natural Philosopher]

Bill Wright

that entirely depends on the ball race.

[geoff]

Burt we're not talking about miniature ones as found in e.g. hard drives, these are predominantly 626ZZ (or as I use VV), I buy a couple of thousand at a time - they run in grease

You're out of your comfort zone there

You got it right there

[geoff]

So, shall we stick to the ones for the function in question then?

[Tim Lamb]

In message , The Natural Philosopher writes

Try angular contact ones:-)

I think bearings fitted with sideplates during manufacture would be packed with grease. Taper rollers and bearings intended to be lubricated by the user might just be oiled.

[geoff]

Nobody would fit one now

As I said - the world has moved on

[notrub]

replying to Gazz, notrub wrote: Lol @ 600 degrees C - you mean Fahrenheit! About 315 C

[Fredxxx]

Now that might have been funny 3 years ago, but not now?

[harry]

The problem is heat transmitted along the shaft. Some fans have a thermal break and normal lubricants can be used. Other without the break, I have never found a long term successful lubricant. Amazed the motor lasts as long as it does.

[Fredxxx]

Didn't you say something like that 3 years ago?

Perhaps Bill will be along shortly saying he's been through 2 ovens since!

[JT]

replying to Gazz, JT wrote: I think you meant degrees F. 600 degrees C would be over 1100 degrees F, way too hot for built in oven.