From Standard Handbook of Plant Engineering, Third Edition

Industrial Division Engineering Staff

The Torrington Company
Torrington, Connecticut

GLOSSARY [*]

A-D

Aligning bearing
A bearing which, by virtue of its shape, is capable of considerable misalignment.
Antifriction bearing
A term given to ball and roller bearings to distinguish them from non-rolling-element bearings, i.e., sliding bearings.
Average life
See median life.
Axial internal clearance
The measured maximum possible movement parallel to the bearing axis of the inner ring in relation to the outer ring.
Axial load
See thrust load.
Ball bearing
An antifriction bearing with balls as rolling elements.
Basic dynamic radial (axial) load rating (BDLR/BDALR)
The constant stationary radial load (constant centric axial load) that a rolling bearing can theoretically endure for a basic rating life of 1 million (10 6) revolutions.
Basic static-load rating (BSLR)
The static load that corresponds to a total permanent deformation of ball and race, or roller and race, at the most heavily stressed contact (0.0001 in [0.00254 mm] of the ball or roller diameter).
Bearing runout
Radial or axial displacement of the surface of a bearing relative to a fixed point when one raceway is rotated with respect to the other raceway.
Bearing series
A graduated dimensional listing of a specific type of bearing.
Bore
The area of the bearing making contact with the bearing seat on the shaft.
Boundary dimensions
Dimensions for bore, outside diameter, width, and corners.
Cage
A bearing component that partly surrounds all or several...
Copyright The McGraw-Hill Companies, Inc. 2002 under license agreement with Books24x7

Products & Services
Thrust Bearings
Thrust bearings are designed for pure thrust loads, and can handle little or no radial load. The rolling element in a thrust bearing can be a ball, needle or roller.
Flange Mounted Bearings
Flange mounted bearings are used when a shaft axis is perpendicular to the bearing mounting surface. They are available in 2, 3, or 4-hole configurations.
Ball Bearings
Ball bearings are used to provide smooth, low friction motion in rotary applications. Ball bearings types include radial ball bearings (deep groove and angular contact) and thrust ball bearings.
Radial Ball Bearings
Radial ball bearings are friction reduction, rotation devices that carry loads radially around its axis. A subtype of ball bearings, they operate through the use of lubricated steel balls placed between two circular guides. They are frequently called deep-groove bearings.
Spherical Roller Bearings

Spherical roller bearings are self-aligning bearings ideal for heavy-duty radial and axial loads. They utilize dual roller rows between a concave outer raceway and convex inner raceway to accommodate shaft deflection.


Topics of Interest

Part 1: FLEXIBLE SHAFTS B. W. Elliott Manufacturing Co., LLC Binghamton, New York INTRODUCTION Flexible shafting is a direct, mechanical method for transmitting rotary power or motion between two...

Creating the best possible operating environment lessens the chance of premature bearing failure. Here are some basic guidelines. A deep-groove ball bearing installed on the output shaft of an...

Cylindrical roller bearings have high radial capacity. Their low friction permits operation at high speed, and thrust loads of some magnitude can be carried through the flange-roller end contacts.

At first glance, ball bearings are relatively simple mechanisms. However, an analysis of their internal geometries reveals that they are quite complex. For example, the ball to raceway conformity, the...

The function of bearings is to keep the shaft or rotor properly aligned with the stationary parts under axial and radial loads. Bearings that provide radial positioning to rotors are known as line or...