The Grease Worker and Its Applicability to Study Mechanical Aging of Lubricating Greases for Rolling Bearings

Mechanical degradation by shear is one of the mechanisms that limits life-time lubricating grease in a rolling bearing. It results change micro-structure thickener–oil system, leading to bleed and consistency. The resistance can be quantified using worker. In this article, novel approach described, where worker used measure rheological properties situ, while aging grease. energy pressure losses are calculated measured force required push plate with holes through cylinder A pipe flow model combination power law rheology analytically determine fluid consistency index exponent validity verified computational dynamics simulations measurements rheometer plate–plate geometry.