| abstract |
The present invention provides a grease composition excellent in the effect of suppressing corrosion due to water and exfoliation due to hydrogen generated from water, and a hub unit bearing for a vehicle excellent in water resistance by enclosing the grease composition. An inorganic corrosion inhibitor is contained in an amount of 0.1 to 5% by mass and an organic acid salt is 0.01% based on the total amount of grease. A grease composition characterized by adding to 0.5% by mass, and a vehicle hub unit bearing in which the grease composition is enclosed. [Selection] Figure 1 |