The invention discloses low-
noise lubricating
grease and a preparation method thereof. The lubricating
grease consists of
base oil, a thickener and an additive, wherein the thickener accounts for 12-14% by weight of the
base oil and the additive accounts for 1.6-2.5% by weight of the
base oil. The base oil is a mixture of
silicon oil,
pentaerythritol, alkylbenzene and poly-alpha-olefin oil, the thickener is a mixture of paraffin,
asbestos and ozocerite, and the additive is a mixture of dialkyl dithiophosphate, dodecenylsuccinic acid,
zinc naphthenate, di-tert-butyl
phenol and polyisobutene. The lubricating
grease disclosed by the invention is simple in preparation method. By using the mixture of
silicon oil,
pentaerythritol, alkylbenzene and poly-alpha-olefin oil as the base oil, the lubricating grease is good in lubricating effect. By using paraffin,
asbestos and ozocerite as the thickener, the
noise of the lubricating grease is reduced. By adding dialkyl dithiophosphate, dodecenylsuccinic acid,
zinc naphthenate, di-tert-butyl
phenol and polyisobutene, the resistance to oxidation and
wear resistance of the lubricating grease are improved.