Ball Bearings Types and Terms
Types of Ball Bearings
- are
a type of radial bearing that are designed so that the contact angle
between the races and the balls is created when the bearing is in use.
- describe
many types of bearings used for automotive purposes.
- are
also sometimes called precision bearings; these bearings are rated
on a scale from 1 to 9 based on precision standards.
- are
components that are used in between moving parts.
- are
made of steel rings and ceramic balls (instead of steel).
- have
one race shoulder turned and ground away to facilitate an assembly
with a greater number of balls. Can also be a non-separable ball bearing
with one side of the raceway removed from either or both rings to assist
manufacturing assembly; normally the outer ring is counterbored.
- are
a type of radial bearing that have a cage assembly, which separates
the balls and is used for radial and axial loads.
- move
objects that need only be moved in one direction and possibly back
to an original position. (Linear
Bearings)
- allow
for more balls to be loaded into the bearing using the filling notches.
- are a smaller bearing, typically under 10mm
bores. A single row style of bearing capable of handling smaller
torque loads.
- are composed of materials that are subjected
to severe stress reversals.
- move
in both directions and can handle large loads. The most widely used
and recognizable ball bearing.
- can
handle higher load capacities than standard ball bearings. These consist
of cylindrical rollers as the motion component of the bearing.
- consist
of two rows of balls and a spherical raceway in the outer ring. These
bearings are known for limited problems with misalignment.
- are
used for inline skates and skateboards. These utilize balls as
the motion component for the bearing.
- are made of steel materials.
- are designed to handle just thrust and minimum
amounts of it, such as in the case of a Lazy Susan or Barstool.
Ball Bearing Terms
- Where
the bearing is mounted; it is an imaginary line that runs through the
center of the shaft.
Ball Cage - Device used to space the
balls. The cage partly surrounds the balls and moves with them.
- Container that
holds the balls in place.
- The smallest dimension
when referring to the separator, inner ring or outer ring of a ball bearing.
- A mechanical component
that is intended to support two or more parts, which maneuver in differing
directions.
- Inner ring of tapered
roller bearing.
- Formed by a
line drawn between the areas of ball and ring contact and a line perpendicular
to the bearing axis.
- A load placed
on a bearing that is in motion.
- A breakdown of the
bearing, when used constantly for loading purposes.
- The amount of internal
clearance in a bearing. This can also refer to shaft and housing size
and how they relate to the bore or outside diameter.
- Bearing that
is able to move in one or two directions.
- The innermost part
of a bearing, which fits on a shaft and contains the external raceway
for the rolling elements. Occasionally the shaft is immobile and the housing
rotates.
- A nut used in tandem
with a lock washer to hold a bearing in place on a shaft.
- A usually oil based
liquid, which provides cooling, reduces friction and resists contamination
and corrosion for ball bearings and related components.
- Separates
similar surfaces by use of a magnetic field.
- Portion of the
bearing that contains the internal raceway for the balls.
- The ball or roller
path cut in the inner and outer ring in which the balls or rollers move.
Sometimes referred to as a guide path.
- A soft synthetic rubber
washer with a steel core fixed in the outer ring (in the seal groove)
in contact with the inner ring to retain lubricant and keep out contamination.
(Hydraulic Seals)
- A thin metal plate or
washer used to pack or pre-load a bearing.
- Used to separate or
space bearings on the same or different rows in areas where multiple ball
bearings are used, such as in assembly lines.
- A load exerted
on a bearing not in motion.