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| Correct Oil for Roller Bearing Driver Boxes https://www.rypn.org/forums/viewtopic.php?f=1&t=39662 |
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| Author: | Rick Rowlands [ Sat Aug 06, 2016 8:23 am ] | ||
| Post subject: | Correct Oil for Roller Bearing Driver Boxes | ||
Its time to start refurbishing the J&L 58's roller bearing driving boxes. I do not know what oil Porter originally specified for the application, or what is commonly used so I am asking here. Just two Timken tapered roller bearings inside rotating at slow speed. What grade of oil should I be using? Thanks
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| Author: | filmteknik [ Sat Aug 06, 2016 9:11 am ] |
| Post subject: | Re: Correct Oil for Roller Bearing Driver Boxes |
Wouldn't Timken be the best source for this information? |
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| Author: | Lincoln Penn [ Sat Aug 06, 2016 10:55 am ] |
| Post subject: | Re: Correct Oil for Roller Bearing Driver Boxes |
85W140 EP is what Timken recommends for oil-lubricated roller bearings. |
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| Author: | Rick Rowlands [ Sat Aug 06, 2016 7:32 pm ] |
| Post subject: | Re: Correct Oil for Roller Bearing Driver Boxes |
Thanks! That is good enough for me! |
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| Author: | John E. Rimmasch [ Sun Aug 07, 2016 8:45 pm ] |
| Post subject: | Re: Correct Oil for Roller Bearing Driver Boxes |
Read a shop specification once that said for a road emergancy, use steam oil in roller bearing boxes. The specifications given for the oil is almost as heavy and thick as steam oil. I drained a box once on a big UP steam locomotive that I swear to this day was steam oil. The rest of the boxes on that locomotive were a heavy gear oil. |
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| Author: | ken clark [ Sun Aug 07, 2016 11:09 pm ] |
| Post subject: | Re: Correct Oil for Roller Bearing Driver Boxes |
Being from both the surface mining industry and agriculture, it's interesting the various oils that a roller bearing or any bearing can run in and survive indefinitely. My own example is a 41 year old farm tractor (190hp). It's trans, diff. and etc. contain lots of roller and ball bearings, all hummin' along just fine in a fluid called THF (Tractor hydraulic fluid). THF is roughly equivalent to 20wt. SAE. If you give a bearing nice clean oil and keep it cool, it's rare to have a failure. It's my experience that 'bearing failures' are mostly from some other cause (if they have lubrication of course). But don't take me wrong here -- 85/140 is a great recommendation. |
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| Author: | CJCheely [ Mon Aug 08, 2016 2:52 am ] |
| Post subject: | Re: Correct Oil for Roller Bearing Driver Boxes |
Hello When I worked at Nevada Southern Railway (NSRM) in boulder city. We had a Texaco book from the Later 1940's that showed all the correct oils and there usages on railroad equipment. I would imagine searched around you would be able to find a copy Chris |
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| Author: | Rick Rowlands [ Mon Aug 08, 2016 8:45 am ] |
| Post subject: | Re: Correct Oil for Roller Bearing Driver Boxes |
I think the heavier oil would also stay in place better than a light oil. Note how close the max oil level is to the grease grooves which denote the space between the box and the axle. It doesn't take much of a cross elevation for oil to start leaking past the seal and onto the track. This grease seal area was also what was giving me grief when we tried to get the wheels turning, as it had corroded and froze the axles solid to the box. Being unable to inspect the roller bearings, all I can do is flush the box out good, fill with the correct oil and hope for the best. There are no unusual sounds when I spin the box, so I am assuming that there is not any bearing damage from them sitting in place for oh so many years. |
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| Author: | Dave [ Mon Aug 08, 2016 12:00 pm ] |
| Post subject: | Re: Correct Oil for Roller Bearing Driver Boxes |
You're not going far or fast - even a marginal bearing will do fine for your purposes. |
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