lead napthalene EP equivalent

[roughrider]

I am an oiler at an industrial facility. Some of our gearbox repair manuals say to use an ISO 220 oil that uses a lead napthalene EP additive. These manuals were written in 1974, is this additive even made anymore? Noone around here knows if there are bronze gears in the internals. Would a modern EP additive be all right in this situation? Thanks for your help! I really love the BITOG boards!

 

[salesrep]

This ep additive is old and oudated chemistry which is not near as good as today's.
Modern ep gear oils with ep additves would be fine. Schaeffer's 293 or 293a is a thought.http://www.schaefferoil.com/datapdf/293A.pdf

 

[MolaKule]

quote:

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I am an oiler at an industrial facility. Some of our gearbox repair manuals say to use an ISO 220 oil that uses a lead napthalene EP additive. These manuals were written in 1974, is this additive even made anymore? Noone around here knows if there are bronze gears in the internals. Would a modern EP additive be all right in this situation? Thanks for your help! I really love the BITOG boards!

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Yes, lead naphthenates are still produced but only have application in very slow gear boxes.

However, as salesrep stated, the more modern gear oils have better EP additives for all speeds of gearing.

 

[roughrider]

Thanks, guys. I just wanted to make sure that the lead napthalene isn't an EP additive that won't attack bronze. I will be using Mobilgear 630, sounds like it should be fine. Thanks again.
Steve