Listed below are popular
applications for ball and spherical thrust bearing styles.
Cylindrical roller thrust bearings - These are thrust bearings containing cylindrical rollers.
They can sustain only axial loads, but they are suitable for
heavy loads and have high axial rigidity. The cages are
machined brass.
Tapered
roller thrust bearings - These are thrust bearings containing
tapered rollers. TT-type bearings, which have a rib on the
housing washer, can accurately guide the shaft in the radial
direction. TTF-type bearings, which have no rib on the housing
washer, can tolerate some eccentricity during operation.
The ball thrust bearings are designed
to handle thrust loads while operating at high speeds. These
bearings can be ordered with an aligning seat and aligning
washer if misalignment or deflection can not be avoided.
The spherical thrust bearings are
designed to handle very heavy thrust loads in one direction
while operating at low to moderate speeds. The design of the
spherical thrust will also allow for some radial load while
thrust load is imposed. The spherical shape of the outer ring
raceway makes these bearings excellent for handling
misalignment.
Ball
Thrust Bearings
- Screw Jacks
- Machine Tool Spindle Tail Stock
- Vertical Openers (Spinning and
Weaving Machines)
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Spherical Thrust Bearings
- Deep Well Pumps
- Centrifugal Pumps
- Power Plant Preheater
- Coal Pulverizer
- Plastic Forming Equipment
- Crane Hook
- Industrial Gear Boxes
- Axial Piston Pumps
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NSK Ball Thrust
Bearings
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Are composed of
washer-like bearing rings with raceway grooves for the
balls. The ring attached to the shaft is called the inner
ring or tight washer and the ring attached to the housing is
called the outer ring or loose washer. In double direction
thrust ball bearings there are three rings, with the center
ring fixed to the shaft. |
| Single
direction thrust ball bearings can support axial loads in
one direction only; double direction, in two. Both are
available with an aligning seat and washer beneath the outer
ring to compensate for shaft misalignment or deflection.
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NSK Spherical Roller
Thrust Bearings
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Have a spherical
raceway in the outer ring with the rollers diagonally
arranged in a single row. These bearings have a very high
axial load capacity and are capable of taking moderate
radial loads when an axial load is imposed. Because of the
configuration of their rolling elements, spherical roller
thrust bearings are capable of handling misalignment and are
suited for moderate speed operation. |
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