Urea grease

A urea grease, which is obtained by shearing a liquid mixture at a shear rate of 102 s-1 or greater, said liquid mixture comprising an amine mixture containing an alicyclic monoamine and a chain aliphatic monoamine together with a diisocyanate compound, and thus reacting the liquid mixture, characterized in that, when measured by the FAG method, the urea grease shows Peak High 32-64s of 1.5 or smaller and Level High 32-64s of 10 or smaller. 本发明的脲基润滑脂是对包含脂环式单胺和链式脂肪族单胺的胺混合物与二异氰酸酯化合物的混合液以10s以上的剪切速度施加剪切、从而使其反应而得到的脲基润滑脂，其特征在于，该脲基润滑脂的按照FAG法得到的Peak High32-64s为1.5以下、且Level High32-64s为10以下。