Abstract
The present invention provides a dual steel ball bearing retainer.
Dual rows of several round indentations are placed on the bearing
retainer element, and the indentations are placed in several dual
rows with steel balls inlayed therein. The bearing retainer is placed
on the axle, and a housing is placed on an outside, and the movement
is created by the friction between the steel ball of the bearing retainer
and the housing moving up and down.
Claims
1. A dual steel ball bearing retainer comprising: a bearing retainer
element having a plurality of dual rows of round indentations placed
on the bearing retainer element; a plurality of steel balls placed
within said dual rows of round indentations diagonally, each steel
ball being placed in an indentation, said bearing retainer element
being placed on an axle; and a housing is placed on an outside of
said bearing retainer element, movement thereof being created by friction
between each steel ball and said housing moving up and down, each
steel ball moving along a dual row of round indentations orderly when
moving up and down.
Description
RELATED U.S. APPLICATIONS
[0001] Not applicable.
STATEMENT REGARDING FEDERALLY SPONSORED RESEARCH OR DEVELOPMENT
[0002] Not applicable.
REFERENCE TO MICROFICHE APPENDIX
[0003] Not applicable.
FIELD OF THE INVENTION
[0004] The present invention relates generally to a structure of
steel ball bearing retainer, and more particularly to a structure
with dual steel ball bearing.
BACKGROUND OF THE INVENTION
[0005] As shown in FIG. 1, there is a conventional structure of
a single steel ball bearing retainer, which has several round indentations
spaced in order on the bearing retainer 1. The indentation has several
single rows of steel balls 2. However, when this structure is moved
up and down, it has uneven friction. For this reason, the industry
developed the steel ball bearing retainer shown in FIG. 2. This
steel ball bearing retainer has a single row and is arranged diagonally.
It is installed by placing several round indentation spaced diagonally,
and the indentation has several of single rows of steel balls 3
placed on it diagonally. When this conventional structure is moved
up and down, even though it has larger contacting space and the
lesser friction than the structure of steel ball bearing in FIG.
1, the vibration, the effect, and stability is still insufficient.
Therefore, the structure is not convenient, has many blind points
and concerns still exist, as well as the following disadvantages:
[0006] 1. When the conventional steel ball bearing moves up and
down and because the friction area is large, it vibrates excessively,
which reduces precision. [0007] 2. When the structure of a single
row steel ball bearing is placed and is diagonally moved up and
down, even though it has a larger contacting area and the friction
is reduced, the vibration, effect and stability is still insufficient.
BRIEF SUMMARY OF THE INVENTION
[0008] The dual steel ball bearing retainer of the present invention
has a plurality of dual rows of several round indentations placed
on the bearing retainer element, a plurality of steel balls, and
a housing. The indentations are placed in several dual rows, having
steel balls therein. From this structure, the steel balls are placed
diagonally, and each steel ball can be placed in each indentation.
BRIEF DESCRIPTION OF THE SEVERAL VIEWS OF THE DRAWINGS
[0009] FIG. 1 shows a perspective view of the conventional, single
row ball bearing retainer.
[0010] FIG. 2 shows a perspective view of the conventional, single
row ball bearing retainer placed diagonally.
[0011] FIG. 3 shows a perspective view of the present invention.
[0012] FIG. 4 shows an unfolded elevation view of the present invention.
[0013] FIG. 5 shows a perspective view of a steel ball inlayed
in the present invention.
[0014] FIG. 6 shows a cross-section of the operation of the present
invention placed on an axle.
[0015] FIG. 7 shows a perspective view of the embodiment of the
present invention of FIG. 6.
DETAILED DESCRIPTION OF THE INVENTION
[0016] As shown in FIGS. 3-5, there is a preferred embodiment of
the improved structure of dual steel ball bearing retainer. Among
them, dual rows of several round indentations are placed on the
bearing retainer 1, and the indentation 10 mentioned herein consists
of several dual rows of steel balls 4. From this structure, the
steel balls are placed diagonally, and the steel ball 4 can be placed
in the indentation 10. FIG. 5 shows the side the bearing retainer
1, and its actual placement and structure.
[0017] As shown in FIG. 6, the bearing retainer 1 is placed on
the axle 5, and a housing 6 is placed on its outside. The movement
is created by the friction between the steel ball 4 of the bearing
retainer 1, and the housing to move up and down.
[0018] As shown in FIG. 7, in an embodiment of the present invention,
the bearing retainer 1 is placed on the moving axles of the press
7. When the upper mold 8 is moving down, it moves down with axle
5. The structure for buffer and guide is the dual steel ball bearing
retainer. Because the steel ball moves along the dual row, one goes
in and one goes out orderly when it moves up and down; hence, when
the dual steel ball bearing retainer moves up and down, the friction
is smaller and it moves smoother. Moving along the dual track makes
it easy to be taken down; therefore, it is more stable. The force
of vibration can be reduced to the minimum, and the stability may
increase. Moreover, there are more contacting points than on the
conventional design; therefore, the pressure on each point decreases
relatively, and the shelf life is increased, and the effect is improved
as well.
[0019] The present invention more practical. Compared to the conventional
structure, there are disadvantages of the conventional structure.
For example, when the conventional steel ball bearing moves up and
down, because of the friction area is large, it vibrates excessively,
which reduces the precision. Also, when the structure of single
row steel ball bearing that is placed diagonally moves up and down,
even through it has larger contacting area and the friction is reduced,
the vibration, effect and stability is still insufficient.
[0020] There are advantages of the present invention over the conventional
structure. First, the steel ball moves along the dual row; therefore,
one goes in and one goes out orderly when it moves up and down.
Hence, when the dual steel ball bearing retainer moves up and down,
the friction is smaller, and it moves smoother. Second, the steel
ball bearing retainer moving along the dual track makes it easy
to be taken down; therefore, it is more stable, the force of vibration
can be reduced to the minimum, and the stability may increase. Third,
there are more contacting points than on the conventional structure;
therefore, the pressure on each point decreases relatively, and
the shelf life is increased and the effect is improved as well.
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