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.
17 Glossary Terms Found
Radial
In the direction perpendicular to a shaft axis.
Radial Deviation
The amount of deviation from the true circular form.
Radial Internal Clearance
Also called radial clearance. It is the total distance the inner ring (or shaft) may be displaced relative to the outer ring of an assembled, installed bearing.
Reciprocating Motion
An oscillating, back and forth motion as it normally pertains to a piston rod or valve stem.
Reciprocating Pump
A type of pump that relies on the reciprocating motion of a plunger, or series of plungers, to generate pressure and cause flow.
Regimes
Lubrication types that define the relationship of the contacting surfaces in an operating condition. Hydrodynamic, Elastohydrodynamic, and Boundary.
Remote Handling
Handling without direct individual contact, usually done with robotic arms.
Resilient
Able to recover rapidly, i.e. elastic.
Rising Stem Valve
A valve in which the movement of the stem is simply reciprocating, with no rotation.
Rising/Rotating Stem Valve
A valve in which the movement of the stem is both reciprocating and rotating at the same time, usually following a helical path.
Rodless Mechanical Actuators
Linear actuators whose load is attached to a fully supported carriage. Rodless mechanical actuators provide linear motion via a motor-driven ball screw, acme screw, or belt drive assembly.
Roller End Scoring
Metal-to-metal contact resulting from the breakdown of lubricant film.
Roller Nicking/Denting
Damage from rough handling or installation damage.
Roller Space Nicking
Raised metal on races from contact with roller edges.
Rotary
The motion of a body turning on an axis.
RPM
Acronym for Revolutions Per Minute
Rubber
A material that is capable of recovering from large deformations quickly and forcibly and can be or already is, modified to a state in which it is essentially insoluble (but can swell) in boiling solvent such as benzene, methyl ethyl keytone, and ethanoltoluene azeotrope.