○○◎◎△○×○×○△○○◎◎◎×◎◎○○△◎◎△◎××○△◎◎×△××◎△◎◎7○○△◎◎◎△×◎△◎◎◎◎○○△◎This is the main ingredient of grease. It is roughly divided into mineral oil and synthetic oil, and various types of base oil are used depending on the application and purpose. Mineral oilPolyalphaolefinDiesterPolyolesterPolyglycolDiphenyl etherSiliconeFluorinated oilCalcium soap thickenerLithium soap thickenerSoap baseLithium complex soap thickenerAluminum composite soap thickenerCalcium sulfonate soap thickenerBentoniteNon-soapbaseUrea compoundSilica PTFE This is the substance used to solidify the base oil. The characteristics differ depending on the type.Each constituent is uniformly dispersed.Enhances various properties such as lubricity and anti-corrosion performance.70˚C120~150˚C120~180˚C120~180˚C120~180˚C150~200˚C150~200˚C150~200˚C150~250˚CCompatibilitywith rubberWaterresistanceMechanicalstabilityLow temperatureresistanceCompatibilitywith resinUpper limit of operatingtemperatureRemarksTypeTypeLubricaitonHigh temperature resistance◎⇒Excellent, ○⇒Good, △⇒Not good, ×⇒Poor◎⇒Excellent, ○⇒Good, △⇒Not good, ×⇒PoorInexpensive, versatileIdeal for resin greaseIdeal for rubber greaseParticularly good at lowtemperaturesExcellent chemical resistance andvacuum resistanceBase oilTypes and characteristics of base oilTypes and characteristics of thickenersThickenerSolid lubricantsand additivesGreaseComposition of greaseGrease is a generic term for a semi-solid form of base lubricating oil mixed with a thickening agent to solidify it. Additives and solid lubricants are sometimes blended for performance enhancement.Depending on the required performance, the type and ratios of these materials are changed.Fundamentals of grease
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