synthetic/ non mettalic bearings

Hello CHAUDHARI

Please advise the following:

1. Is the water fresh or sea water?
2. If fresh water, advise actual river/s and location/s.
3. Advise height/dimensions of barrage gates please.
4. A picture of the bearing/s location may assist.
   
5. A picture or two of the barrage gates may also be helpful.
6. Advise the actual present bearing/s numbers, which should be helpful from a loading point of view.
7. Advise how many barrage gate operations per gate per day.
8. Any other relevant information - Advise please.
   

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Reply here, with

Kind Regards....

Hybrid bearings are available which have cermet balls. The life of these bearings is usually longer. They were designed more for high speed applications. Cost is more will depend about the size. With your application with water and silt contamination some type of self lubricating plane bearing may do better. Or a lubrication system that would hold positive pressure on the grease to keep the water out.

Try Green Tweed Agent in your country.

I have had good success with their product in dredge application. The bearings they would be offering is self lubricating, high temp rating and high wear resistance.

Regards,

Prem

Hello CHAUDHARI:

have you thought of Phosphor-Bronze ball bearings or, as a self lubricating item. Or stainless steel bearings? Personally I would look into Phosphor Bronze.

I do not think the cost is important. If it costs more but the gates do not brake down they have paid for themselves, right?

It seems an error to choose steel bearing where there is water anyway. No offence.

IF THE USE OF ROLLER BEARING IS MANDATORY YOU CAN USE THE SAME BEARING WITH WATER RESISTANT SYNTHETIC GREASE TO PREVENT THE EFFECT OF WATER IN RUST AND SILT

BY USING THIS TYPE OF GREASE THERE WILL NOT BE ANY EFFECT OF WATER ON BEARING AND THERE WILL NOT BE ANY PROBLEM OF LUBRICATION ALSO

It should be possible to use non-metallic bearings for this application. My company should be able to help you with a solution, if you can provide the whatever possible / available details asked by Sparkstation along with existing bearing dimensions, maximum load, maximum speed, conditions of operation and the assembly drawing / sketch.

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Plastic blocks,brick shape will be much better and longer lifetime.it works sliding on a metallic guide,lubed by grease or even soap.bears great loads at low speed.Cranes manufacturers are using with better results than ball bearings and all that stuff,red bronz,copper-zinc alloys,etc,.Use polipropileno or (second chance)some nylon,delrin or whatever.loaded with graphito,molibdeno or grease ,better but not necesary and more expensive.Meseaure the time of life for that and then tell mewhat is cheaper thing.-