What ratio do planetaries rotate at in a gearhead?

[peteski]

I'd like an oil that stays on the motor pinion.

victor

Try Gear Lube from Woodland Scenics.  It is a bit viscous, but is should stay in place.

[victor miranda]

Hi Peteski,

At 35 thousand rpm, oil will sling off.
so one starts looking at various grease options..... and they eat power.
I have some red thunder-jet oil/grease (It is thick for an oil and thin for a grease)
This stuff definitely stays on the driven gear and so the pinion gets lubed.
it may well be on the pinion, and if it is there, it is hard to see.

the request was for a bit of magic that didn't eat power.

it occurs to me that an oil bath could solve the problem.

and such dreams lead to improvements...

victor

[mmagliaro]

How about the heavier Labelle gear oil - I think it's number 102?   I have used that on metal-to-metal gearing (about the only
place I use oil anyway).
That 34,000 rpm number for that little motor just seems unsustainable.

[timwatson]

Hi Peteski,

I have some red thunder-jet oil/grease (It is thick for an oil and thin for a grease)
This stuff definitely stays on the driven gear and so the pinion gets lubed.
it may well be on the pinion, and if it is there, it is hard to see.

victor

Thanks for the recommendation Victor.

[peteski]

Hi Peteski,

At 35 thousand rpm, oil will sling off.
so one starts looking at various grease options..... and they eat power.
I have some red thunder-jet oil/grease (It is thick for an oil and thin for a grease)
This stuff definitely stays on the driven gear and so the pinion gets lubed.
it may well be on the pinion, and if it is there, it is hard to see.

the request was for a bit of magic that didn't eat power.

it occurs to me that an oil bath could solve the problem.

and such dreams lead to improvements...

victor

Victor - Like I said - try the lube I recommended.  That stuff has some strange properties.  Even if it flies off the pinion gear, it will keep the satellite gear surfaces lubed,  Isn't that good enough? 

[victor miranda]

I have a wish peteski,

well, since what I used is good, I am not thinking I will add to my earl-can collection.

The power one loses using thick oils and greases is the problem.
solutions vary.
I believe I settled on using the red-stuff for the motor pinion and  driven gear.
I lubed the rest of the gearbox with atlas light bearing oil.

that 0-8-0 sounded like it had a turbine engine in it.

[mmagliaro]

Which 0-8-0 are we talking about here?

I had one originally with a gearbox at 25:1 that I thought was 5:1, and I corrected that mistake later and indicated that
it was 25:1.  Then I put the 5:1 on and got what I think is pretty normal plastic gear noise.
Chris also put up some video with the plastic (Gizmo) 5:1 gearhead.

Which one sounded like the turbine?

[victor miranda]

the 0-8-0 I was refering is the one I added a gearbox and coreless motor.
a friend of mine wanted me to built it, he got parts and I did the grinding and filing.

victor