How the NLGI HPM specification facilitates grease selection

The basic property needed for a lubricating grease is to separate the moving surfaces. This reduces friction and energy consumption, prevents wear from occurring, and gives components excellent durability. All greases should offer this basic protection provided they have the correct base oil viscosity. Other necessary properties are oxidation resistance, rust and corrosion protection, and good structural stability. A grease that breaks down or collapses and runs out of the bearing will not offer long term protection, requiring shorter intervals between re-greasing and resulting in increased operating costs. The benefit of using a grease certified to National Lubricating Grease Institute’s (NLGI’s) new High-Performance Multiuse (HPM) grease specification is the grease will have other necessary properties built into the grease that are currently lacking in the GC-LB specification requirements.

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