Abrasive wear, high loads, coatings/material selection
Abrasive wear, high loads, coatings/material selection
(OP)
I currently have an issue dealing with two cam plates separated by three ball bearings. We use grease as a lubricant however we are interested in using a coating lubricant. The total pressure between the plates is around 100,000psi. Xylan was tried, and was impressive,however did not quite meet the requirements we are looking for. Erdemir is another coating which we are looking into. Another possible solution to this, however, is changing the materials. We have tried carbide balls, chrome balls, ceramic balls, titanium balls, nickel coated plates and many other various possible fixes. I am wondering if perhaps anyone has a recommendation on this matter; a coating or different material combination that will withstand adhesive wear under extremely high loads. The current cam plates are D2 steel. The balls are 52100. The best possible solution involves only changing the ball bearings. The material selection for the cam plates is not very flexible.





RE: Abrasive wear, high loads, coatings/material selection
RE: Abrasive wear, high loads, coatings/material selection
Xylan proved to be very effective, (better than anything else we've tried thus far), however it still can not withstand the 100,000psi load for over 100,000 cycles. We're looking for about a quarter million-
MoS2 has been tried with zinc coated plates and only got to around 20,000 cycles. AlSi balls (ceramic) only got us to around 4300 cycles due to ball breakdown/fracture and severe wear on the track surface.
I haven't looked into DLC coatings as I am unfamiliar with them, however I will be sure to-
thanks in advance