Slide bearings - Wolf Kunststoff-Gleitlager GmbH

CCCCCC7.3.2.Lubricating greasesLubricating greasesLubricating greases consist of a lubricating oil without or with additives and a soap in function of a thickeningagent.In general, the soap forms a fibrous skeleton which keeps the lubricating oil. Depending on the kind of soap wedistinguish between sodium greases, lithium greases, calcium greases, aluminium greases, barium greases andcomplex greases.PrefaceContentssodium grease lithium grease calcium greasethickener shape fiber fiber fiber fibercalcium complexgreasebentoniteplateletMaterialoverviewfiber length µm 100 25 1 10.5fiber diameter µm 1 0.2 0.1 0.1shortened form long fibrous medium fibrous short fibrous short fibrous short fibrouspropertiesdrop point ºC 150 -200 170 - 220 80 -100 250 - 300working temperatureupper ºC +120 +140 +60 +100under ºC -30 -40 -35 -30water resistance not resistant good very good very goodworked resistance 0,1mm 60 - 100 30 - 60 30 -60 250good very good limited limitedsuitability for slide bearings good good limitedmain applicationtransmissiongreasegeneral purposegreasegeneral purposegreaseprice average high low very highTable 9: Properties of lubricating greases7.3.3.Solid lubricants0.1round 300+150-20good30 - 60goodvery goodgoodhigh temperaturegreasevery highSolid lubricants are frequently employed for lubrications on extreme conditions e.g. at very high or very lowtemperatures, in aggressive chemicals, in vacuum or on conditions which do not permit a lubrication with oils orgreases for reasons of service engineering, safety engineering, environmental technology or healthy.When lubricating with solid lubricants the slide bearing mostly works in the area of mixed friction, so that whenoperating with e.g. metallic bearings only the emergency running properties improve.Index Slide bearings Slide bearings Conditions ofTribologyMathematical Design(with collar) (cylindrical) installationexample guidelinesWolf Kunststoff-Gleitlager GmbH • Heisenbergstr. 63 - 65 • 50169 Kerpen-Türnich • Tel. 02237/9749-0 • Fax. 02237/9749-2023