Knowledge Base Glossary
Glossary is usually defined as an alphabetical list of technical terms in some specialized field of knowledge. This knowledge base glossary provides a collection of knowledge base documents that define many technical terms. These terms are arranged alphabetically, but you can quickly jump to a specific term by selecting its first letter from the index of the knowledge base glossary below.
21 Glossary Terms Found
ABEC
Annular Bearing Engineers Committee. Used as a prefix for tolerance grades of bearings as set up by this committee.
ABMA
American Bearing Manufacturers Association. This is a non-profit association consisting of American manufacturers of anti-friction bearings, spherical plain bearings or major components thereof. The purpose of ABMA is to define national and international standards for bearing products and maintain bearing industry statistics.
Abrasion
The wearing away of a surface by mechanical action such as rubbing, scraping or erosion.
Abrasive Blasting
Process for removing scale from product after heat treatment and prior to grinding; product pieces are placed in a tumbler that bombards the surface with high-velocity metal shot particles. This process also acts as a tempering or stabilizing process. (Also called Shotblasting)
AC
Alternating Current
Accelerated Life Test
Any set of test conditions designed to reproduce in a short time the deteriorating effect created under normal service condition.
Acceleration
The rate of change in velocity of an object over time.
Acid Etch
The process of checking surface of ground product for cracks or burns by using a series of acids or neutralizers. Also called Nital Etch.
Actuator
A device attached to a valve which moves the stem, usually my means of a motor or via pneumatics. A valve fitted with an actuator is usually referred to as a control valve.
Adhesion
The process or condition of sticking or staying attached. It also refers to the bond strength between two surfaces.
Aging
Undergo changes to physical properties with lapse of time.
All Purpose Bearing
A self-contained pre-assembled, pre-adjusted, pre-lubricated, completely sealed unit. Applied to and removed from an axle without exposing the bearing elements, seal or lubricant to contamination or damage.
Ambient Temperature
The surrounding temperature. Note that ambient temperature is not necessarily the same as atmospheric temperature.
Angular Contact Bearing
A type of ball bearing whose internal clearances and ball race locations result in a definite contact angle between the races and the balls when the bearing is in use.
ANSI
The American National Standards Institute is a private organization that identifies industrial standards and coordinates their development. Many ANSI standards relate to safe design, performance and practices for equipment.
Anti-Friction Bearing
These bearing types use rolling contact to cut power loss resulting from friction.
Aqueous Solutions
Any fluid solution containing water.
ASME
Abbreviation for American Society of Mechanical Engineers.
Assembled Splice
A splice that is constructed of multi layers of materials and connected by use of elastomeric cements, adhesives, etc.
ASTM
Abbreviation for American Society for Testing and Materials.
Axle
Rod or spindle on or with which a wheel revolves; the bar connecting two opposite wheels. The shaft (axle) of an automobile fits through the bore of a cone of the tapered roller bearing.