grease

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grease,

mixture of lubricant and thickener. It is used to reduce friction between surfaces from which oils would leak away or cause damage by dripping, or where lubrication must be assured for extended periods. Many greases are mixtures of mineral oil and soap. The more common of them contain a calcium-base soap that withstands water but not high temperature, or a sodium-base soap that withstands higher temperatures and adheres well but dissolves in water. Other soaps used in greases have bases of lithium, aluminum, barium, or strontium. Nonsoap thickeners include carbon black, which is unaffected by temperature and is therefore used with extreme low-temperature lubricants; silica gel; and bentonite, a clay developed for universal greases. Solid lubricants are sometimes used for extreme bearing pressures and high temperatures. Synthetic oils are sometimes used for special conditions, generally temperature extremes.

grease

[grēs]
(materials)
Rendered, inedible animal fat that is soft at room temperature and is obtained from lard, tallow, bone, raw animal fat, and other waste products.
A lubricant in the form of a solid to semisolid dispersion of a thickening agent in a fluid lubricant, such as petroleum oil thickened with metallic soap.

grease

1. any thick fatty oil, esp one used as a lubricant for machinery, etc.
2. Vet science inflammation of the skin of horses around the fetlocks, usually covered with an oily secretion
References in periodicals archive ?
Industrial greases are an incumbent part of machine maintenance operations around the world.
New analysis from Frost & Sullivan, Analysis of Industrial Greases Market and Opportunities for Bio-based Materials, finds that the market earned revenues of $1.22 billion in 2013 and estimates this to reach $1.82 billion in 2019.
Any discussion of lubrication inevitably leads to a comparison between oil and grease lubricants, and a discussion of the pros and cons of each type.
M2 EQUITYBITES-May 24, 2013-Martin Midstream Partners LP to acquire NL Grease LLC's assets for undisclosed sum(C)2013 M2 COMMUNICATIONS http://www.m2.com
Grease is a solid or semifluid which would normally have been employed together with a thickener, additive, and anti-oxidant agent.
Especially formulated to stay in place even with high-pressure equipment wash-down, the new grease outperformed other greases in ASTM D tests for water spray-off, wear and corrosion.
We are left wondering why in Geneva in 1571 (as in Lausanne and Neuchatel) investigators were inclined to connect greasing and plague with witchcraft, while "natural" explanations for "grease" and/or plague sufficed in Lyon, Milan (even in 1630), and Geneva itself in the earlier period.
The G-0100 multipurpose motor bearing grease is a mineral oil-based grease thickened by a urea system.
These new oils, greases, and industrial fluids are derived from common plant products such as soybeans, sunflower seeds, and canola (or, in Europe, its close relative rapeseed).
Conductive bearing greases help reduce or prevent such damage, but the metals and other conductive materials used in traditional greases are not lubricious and the conductivity is often short-lived because of particle matrix breakdown.
Today's greases are primarily comprised of a soap skeleton into which oil is imbedded.