Patent ID: 8895489
Filing Date: 2014-11-25
Classification: C10M,C10N,F16C

Abstract:
1. A grease composition for hub unit bearing, comprising the following components (a) to (e): (a) 10 to 25% by mass of an aromatic diurea thickener, (b) mineral oil having a kinematic viscosity at 40° C. of 50 to 80 mm (c) 0.5 to 6% by mass of a calcium salt of oxidized petroleum wax as a metal salt of oxidized wax, (d) 0.1 to 2% by mass of diphenyl hydrogen phosphate, and (e) 0.5 to 3% by mass of calcium dinonylnaphthalenesulfonate as a rust preventive, wherein all mass percents are based on the total mass of the composition.