SEE THE VIDEO AT www.lubevent.com

I agree Tom, the temperature is not very high, may be 70~ 80℃, water is the key point. calcium sulfonate complex grease is good to solve it. such as Total CERAN HV. Shell Alvania HD2, a calcium and lithum mixture thickened grease, which is much cheaper than calcium sulfonate, also can be well used on the hot rolling bearing.

I agree Tom, the temperature is not very high, may be 70~ 80℃, water is the key point. calcium sulfonate complex grease is good to solve it. such as Total CERAN HV. Shell Alvania HD2, a calcium and lithum mixture thickened grease, which is much cheaper than calcium sulfonate, also can be well used on the hot rolling bearing.

I think the website is not working well

Try an aluminum complex base Schaeffers #222 is excellent

Trans 14,

If water contamination, is the problem I recommend to solve that first. SKF seals (Chicago Rawhide) says that can deliver large size seals in less than one week, and apparently they do. Depending on the space you have available you could try V-rings combined with a

I have good experience with Calcium sulphonate greases in a rolling mill, Fina Ceran HV and SKF LGHB 2 gave good results in this application.

Saludos

Trans 14,

If water contamination, is the problem I recommend to solve that first. SKF seals (Chicago Rawhide) says that can deliver large size seals in less than one week, and apparently they do. Depending on the space you have available you could try V-rings combined with a LABYRINTHseal

I have good experience with Calcium sulphonate greases in a rolling mill, Fina Ceran HV and SKF LGHB 2 gave good results in this application.

As I have mentioned in a previous post Husky LVI50 grease is quite water proof.

It is a synthetic base oil in a polymer matrix. It has no dropping point (it will ignite before it melts) it is food grade and I kept a sample underwater for two years with no water absorption aparrent. We use it in our clinker grinder bearings to prevent hot water washout from the boiler bottom ash system.

I'm not saying Husky is a fix all but there are specialty lubes out there that outperform lithium in every way.

quote:

Originally posted by Satish Agrawal:
Roll Chocks - you could look at calcium complex that has better water resistance. Even calcium sulfonate has better resistance as it could absorb some water. But the thickener itself has a lubricating effect still.

I am not sure Dow Corning market these products in your country but you could check with a local Molykote distributor there for more details on G-0103.

Here I am sharing my experience for the lubrication of roll chock bearings in hot rolling mill:
Lithium-Calcium based EP grease with water resistance property should be the best choice for such application. Calcium complex or overbased calcium sulphonate complex grease may not give the satisfactory performance. Mostly sulphonate based greases absorb water and get thickened up in bearings and create non-distribution of grease( oil) film on the mating surfaces which causes bearing failure or short component life.
However u will get good results changing to lithium-calcium grease from any other complex greases.