Thread: Swivel hub grease

What about a PTFE high temp high pressure grease? I have had great experience with PTFE greases and oils in industry.

Originally Posted by Eastern Engineer

What about a PTFE high temp high pressure grease? I have had great experience with PTFE greases and oils in industry.

I am not familiar with it, but the specific qualities quoted (high temperature, high pressure) are not required in this application, so there would seem to be little advantage. On the other hand, it may not have the qualities that are required, specifically the ability to flow readily at all operating temperatures so that the universal can act as a thrower to ensure lubrication of the upper swivel, and to flow into the unsealed CV joint. A desirable, but less critical property is to have exactly the right flowability, so that this requirement is met while the tendency to leak is minimised, and it is very unlikely that PTFE High temp grease meets this criterion. (in addition to the flowing properties, it needs to have a variety of not particularly special lubricant properties, but none of these matter if the lubricant does not reach the surfaces it is intended to lubricate, for example by having too high a viscosity.)