are bearings they permit rotation between parts, but they
are designed to support a high axial (along the same line as an axis
(coaxial) or centerline) load
while doing this.
Thrust bearings come in several varieties.
-
Ball thrust bearings, comprised of
ball bearings supported in a ring, can be used in low thrust
applications where there is little radial (line drawn along a vector)
load.
-
Tapered roller bearings consist of small tapered rollers arranged
so that their axes all converge at a point on the axis of the bearing. The
length of the roller and the diameter of the wide and the narrow ends need
to be carefully calculated to provide the correct taper so that each end
of the roller rolls smoothly on the bearing face without skidding. These
are the type most commonly used in automotive applications, where they are
used in pairs to accommodate axial thrust in either direction, as well as
radial loads. They can support rather larger thrust loads than the ball
type due to the larger contact area, but are more expensive to
manufacture.
They are commonly used in automotive and marine and
aerospace applications. Thrust bearings are necessary in cars because
the forward gears in modern car
gearboxes
use
helical gears which, while aiding in smoothness and noise reduction,
cause axial forces that need to be dealt with.
1.
2.
.
Application
Notes:
