Plain Bearing Lubrication
Plain Bearing Lubrication
(OP)
I have a problem of stick-slip with slow moving flat plain bearings that only travel about 2 inches back and forth. A one time trial with EP grease solved the problem for a short time however there is no provision for regular greasing. The bearings are always loaded in the 3,000 to 5,000 psi range and it is very expensive and time consuming to take the bearings apart.
A hole can be drilled to the center of the bearing surface and high pressure lubrication applied up to 5,000 psi for grease and 15,000 psi for oil. Any ideas on whether this would would actually get lubricant to the bearing surfaces at these bearing pressures? What about with grease grooves?
A hole can be drilled to the center of the bearing surface and high pressure lubrication applied up to 5,000 psi for grease and 15,000 psi for oil. Any ideas on whether this would would actually get lubricant to the bearing surfaces at these bearing pressures? What about with grease grooves?





RE: Plain Bearing Lubrication
there is no mention of temperature, is this a factor?
there are also self lubricating materials available for applications such as this that can survive on minimal lube.
there are also many considerations such as water or dirt contamination to take into account.
can you share the application with us?
RE: Plain Bearing Lubrication
RE: Plain Bearing Lubrication
I found this site www.slickote.com
RE: Plain Bearing Lubrication
As I see it your options are
1) Grease or oil that is significantly loaded with either PTFE or PE and keep using it forever.
2) Fix a scrubber, made of either PTFE or PE (PTFE is better for lubrication but PE can handle higher compression before creeping) front and back of your bearing carrier. If you can apply an adjustable pressure to the scrubbers so that they always are pressing very firmly onto the sliding surface, the materials will transfer some of themselves onto the sliding surface and greatly reduce your starting friction. If your application is exposed to sunlight (UV rays) forget PE
RE: Plain Bearing Lubrication
Greetings,
Lex
info@intertechbv.nl