Hi friends,
i am eager about any device or product which can stop as well as resist oil leakage through
oil seal in gear boxes & hydrolic systems.this leakage occurs due to deterioration of rubber due to high temp. or chemical attack of deteriorated oil.
thanks.

Sounds like leaking seals need to be replaced with seals made to handle higher temp's and a lubricating fluid change done. I'm not sure what type of equipment you are working on but you may want to check with the manufacturer and see if they make different seals for them, they may have started making different seals since the equipment was purchased. You could also try aftermarket and see if someone makes higher temp seals.

Depending on what type of fluid you are using you could try using a thicker/higher viscosity oil. Other than that I don't know what you could do but use a viscosity improver to try to thicken up the current fluid at high temp. Something like 800 Polymer might work if the leaks are not to bad. If nothing else it would slow them down.

Dear Amit,

I would love to exchange notes with you on this matter as even we are working on the same issue.

Worst of all is that you can not change the seal as it calls for a long shut down enterval.

We might be able to synergyse to offer or have a great solution.

Gaurav - Mumbai 9892545299 , gkm@gtsindia.com

do post me your telephone no.

Tri eithe ISOMag or INPRO seals.

Do you have any idea how hot your gearboxes operate? What type of seals and fluid are you using? This would help

Dear Amit

See rubber seals are not compatible with Hydraulic/Gear oils or any other oils thus after some time due to chemical reaction the seal churns and leakage starts.
I suggest you can apply Molykote 55 O ring Grease/111 compound which acts as a barrier between oil and rubber thus can improves the life of rubber seal to many folds.
Should you require further info you can give me a call on +91 9899994343
or mail me at s.singh@dowcorning.com.

The above products are tried and test on similar applications.

Regards

Shail

The deterioration of seals might be caused by contamination of the oil with dust or metal particles. Cleaner oil would help the seals not to wear prematurely.

I agree also to look for quality seals, there are several manufacturers of NBR of premium quality that will work better and longer.

Additionally, magnetic filtration will filter out metal particles that are infecting all fluid systems and stay in suspension in oil. We rely on One Eye magnetic rods, (www.oneeyeindustries.com) that separate particles under 1 micron.
These particles are generated from oil drums, from rust in any part of the systems (very small), from corrosion, from metal flaking, from erosion of pipes in lube systems, from abrasion of particles against metals like sandblasting, and from wear of friction surfaces.

By separating metal particles, not just seals, but also bearings, and the oil itself will live longer.

Hi Amit

There are some Polymer Base Gear Oil which Forms a layer on Seals hence there is No effect on Seals when Acid no of Oil increases Or Gear Box Temp goes Higher.

Please mail me your details at rrsdelhi@gmail.com for more Info.

Regards

Rajeev