lubricating plastic gears
lubricating plastic gears
(OP)
I have always heard that it is a bad idea to lubricate plastic gears because residue from normal wear will mix with the lubricant to create an abrasive paste which adds to the wear problem. Is this true? Has anyone had experience with this situation?
My application is with a set of 1" gears made of Nylon 6/6 with 30% carbon Fiber and 15% PTFE.
Thanks
My application is with a set of 1" gears made of Nylon 6/6 with 30% carbon Fiber and 15% PTFE.
Thanks





RE: lubricating plastic gears
RE: lubricating plastic gears
I have a system with a plastic gear train, as described, that has run about 350,000 cycles and the loading is such that the gears have worn through abrasive wear to the point of failure. I am looking to see if lubrication is even an option in this scenario.
I realize that plastic gears are normally considered self lubricating, but in this case the lubricity within the plastic/design is not sufficient to meet the needs of this part.
RE: lubricating plastic gears
Alternatively - graphite powder.
Cheers
Greg Locock
RE: lubricating plastic gears
RE: lubricating plastic gears
You can try Molycote PG75 which is a silicon based grease designed for just that purpose. Normal greases cause problems on plastic parts.
RE: lubricating plastic gears
Chris Grace
Product Development Engineer
Sterilite Corp.
RE: lubricating plastic gears
RE: lubricating plastic gears
RE: lubricating plastic gears