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FDA lubricant and hardplastic/teflon

FDA lubricant and hardplastic/teflon

(OP)
I do not know much about mechanisms and even less about mechanisms used within the food industry. Im designing something that will be used in the food industry. Im looking for an FDA approved lubricant.  I need to lube some steel bevil gears and chain and sprockets. The loading on the parts will be low to medium.

Also looking for some hard plastic or teflon type material with good wear properties when riding on stainless steel and medium carbon steel. Basically, I want to use a plastic type material for a roller/wheel that will ride in a track in a linear motion and low loading. Maybe it would be just as well to use a steel roller/wheel.  Also, i want to use a plastic or teflon for a bushing..any recommendations?

RE: FDA lubricant and hardplastic/teflon

Silicones at 350 cST and white mineral oil are specifically listed by FDA as GRAS.  A case can be easily made for other silicones by the many cross references within the FDA regulations.  You can check the FDA by starting at the Code of Federal Regulations at http://vm.cfsan.fda.gov/~dms/opa-indt.html.  Cured Teflon (or PTFE)can certainly be used as the bushing and as the gear material itself.  For a plastic gear, web browse for engineered plastics, it should easly meet any FDA criteria of sterility.  

RE: FDA lubricant and hardplastic/teflon

(OP)
thanks for the info phoward, that should get me started.

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