CN109715962A - Double-row type ball bearing - Google Patents
Double-row type ball bearing Download PDFInfo
- Publication number
- CN109715962A CN109715962A CN201780057826.3A CN201780057826A CN109715962A CN 109715962 A CN109715962 A CN 109715962A CN 201780057826 A CN201780057826 A CN 201780057826A CN 109715962 A CN109715962 A CN 109715962A
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- China
- Prior art keywords
- inner ring
- mentioned
- double
- orbit space
- ball bearing
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C13/00—Rolls, drums, discs, or the like; Bearings or mountings therefor
- F16C13/006—Guiding rollers, wheels or the like, formed by or on the outer element of a single bearing or bearing unit, e.g. two adjacent bearings, whose ratio of length to diameter is generally less than one
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C19/00—Bearings with rolling contact, for exclusively rotary movement
- F16C19/02—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows
- F16C19/14—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load
- F16C19/18—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load with two or more rows of balls
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C25/00—Bearings for exclusively rotary movement adjustable for wear or play
- F16C25/06—Ball or roller bearings
- F16C25/08—Ball or roller bearings self-adjusting
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
- F16C33/30—Parts of ball or roller bearings
- F16C33/58—Raceways; Race rings
- F16C33/60—Raceways; Race rings divided or split, e.g. comprising two juxtaposed rings
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C35/00—Rigid support of bearing units; Housings, e.g. caps, covers
- F16C35/04—Rigid support of bearing units; Housings, e.g. caps, covers in the case of ball or roller bearings
- F16C35/06—Mounting or dismounting of ball or roller bearings; Fixing them onto shaft or in housing
- F16C35/063—Fixing them on the shaft
Abstract
The issue of the present invention is to provide a kind of double-row type ball bearings, can be arranged with the space of saving, high resistance to load is presented.Inner ring (3) is divided into two parts by the 1st inner ring (31) and the 2nd inner ring (32), in the 1st inner ring (31), form the 1st curved surface (34) for constituting the 1st orbit space (A1), in the 2nd inner ring (32), the 2nd curved surface (36) for constituting the 2nd orbit space (A2) is formed.The minor diameter (51) of axis (5) passes through the 1st inner ring (31) and the 2nd inner ring (32) in the state for ensuring gap, the caulking part (52) for being formed in the front end of minor diameter (51) is crimped in the 1st inner ring (31), and the side of major diameter portion (53) is abutted with the 2nd inner ring (32).
Description
Technical field
The present invention relates to double-row type ball bearings, and in particular, the present invention relates to the excellent double-row type ball axis of resistance to load
It holds.
Background technique
As the rolling bearing at the position for the high load of load, people, which know, double-row type ball bearing.Double-row type rolling
Pearl bearing by width direction according to 2 rows side by side and rolling element is set, resistance to load is improved, by acting on outer ring (outer ring)
Or it is set to the rotary force on the inner ring in the inner circumferential of outer ring (inner ring), the rolling element being set between outer ring and inner ring is rolled
It moves, thus bearing load.
In patent document 1, ball bearing is disclosed, in the ball bearing, is arranged between outer ring and inner ring and rolls
Body.In the ball bearing, rolling element along the circumferential direction according in width direction and the alternate mode in left and right is arranged.
In patent document 2, the bearing for disclosing following double-row types, in the bearing of double-row type, width direction simultaneously
Be arranged capablely rolling element between outer ring and inner ring by holding member keep the 1st, the 2nd bearing.
Existing technical literature
Patent document
Patent document 1:JP speciallys permit No. 2992716 bulletin
Patent document 2:JP Japanese Laid-Open Patent Publication 9-303407 bulletin
Summary of the invention
Subject to be solved by the invention
But in the ball bearing described in patent document 1, due to being alternately arranged rolling element by left and right, because rolling
Gap value between the adjacent rolling element of the circumferencial direction of pearl bearing causes the setting quantity of rolling element few, therefore has ball bearing
The small problem of resistance to load.
In addition, in the ball bearing described in patent document 2, due to because being located in the rolling adjacent in the circumferencial direction of bearing
The setting quantity of retainer between kinetoplast, rolling element tails off, therefore has the problem of resistance to load of bearing becomes smaller.
Opposite such problems, people also consider, and multiple ball bearings are set side by side according to multiple in width direction, increase
Add resistance to load, still, have because add ball bearing amount, cause installation space will increase the problem of.
Then, following technical tasks is generated, which is to provide the space that can be saved in order to solve and set
The double-row type ball bearing of high resistance to load is set, presents, it is an object of the invention to solve the project.
A technical solution to solve project
The present invention is to propose to achieve the goals above, and invention described in claim 1 is related to a kind of double-row type rolling
Pearl bearing, in the double-row type ball bearing, be formed in outer ring and be set to the outer ring inside inner ring between the 1st rail
Road space and the 2nd orbit space, are respectively set rolling element, the outer ring include receive respectively above-mentioned rolling element the 1st orbital plane and
2nd orbital plane, above-mentioned inner ring is divided into two parts in width direction by the 1st inner ring and the 2nd inner ring, in the 1st inner ring
In, formed and constitute the 1st curved surface of above-mentioned 1st orbit space together with above-mentioned 1st orbital plane, in the 2nd inner ring, formed with
Above-mentioned 2nd orbital plane constitutes the 2nd curved surface of above-mentioned 2nd orbit space together, and above-mentioned 1st inner ring is passed through in a manner of loosening and be fitted into
Above-mentioned 1st inner ring and the 2nd inner ring are riveted in width direction with the riveting mechanism of the 2nd inner ring.
According to the program, it is received in the rolling element of the inside of the 1st orbit space and the 2nd orbit space in circumferencial direction and company
It is accepted continuously, as a result, compared with past ball bearing, rolling element can bear high load capacity.In addition, in the 1st inner ring and the 2nd
The state that ring is embedded on riveting mechanism in loosening is riveted in width direction, even if as a result, in the 1st inner ring and the 2nd inner ring in phase
It is coaxial upper that in the case where side by side, one of the 1st inner ring and the 2nd inner ring do not move, as a result, with respect to another one in radial direction
It can be compensated according to the position of mode arranged side by side in same axis to the 1st inner ring and the 2nd inner ring.
Invention as claimed in claim 2 provides following double-row type ball bearings, which is related to right
It is required that the scheme of invention described in 1, which includes: minor diameter, the minor diameter by loosen it is chimeric in a manner of pass through it is upper
State the 1st inner ring or the 2nd inner ring；Caulking part, the caulking part are formed in the front end of the minor diameter, are crimped on above-mentioned 1st inner ring
Side；Major diameter portion, the major diameter portion are continuously provided in above-mentioned minor diameter, abut with the side of above-mentioned 2nd inner ring.
According to the program, caulking part can be set only by the end of the minor diameter of riveting mechanism, in width side
It is riveted to by the 1st inner ring and the 2nd inner ring.
Invention as claimed in claim 3 provides following double-row type ball bearings, which is related to right
It is required that the scheme of invention described in 1 or 2, between above-mentioned rolling element and above-mentioned 1st curved surface or the 2nd curved surface, in width direction and
Ensure gap.
According to the program, even if the external force on the outer peripheral surface by acting on outer ring, outer ring is slided in width direction
In the case of, rolling element still can continuously be rolled in the 1st orbit space and in the 2nd orbit space.
Invention as claimed in claim 4 provides following double-row type ball bearings, which is related to right
It is required that double-row type ball bearing described in any one in 1~3, wherein the central point of above-mentioned 1st curved surface is set to above-mentioned
On the PCD axis of 1 orbit space, the central point of above-mentioned 2nd curved surface is set on the PCD axis of above-mentioned 2nd orbit space, above-mentioned
1st curved surface and above-mentioned 2nd curved surface are formed with same radius of curvature, form single orbital plane.
According to the program, even if constituting single orbital plane because of the 1st curved surface and the 2nd curved surface, one in outer ring and inner ring
Person is with respect to another one, and in the case where width direction moves, rolling element still may extend across the 1st inner ring and the 2nd inner ring and be rolled
It is dynamic.
Invention described in claim 5 provides following double-row type ball bearings, which is related to right
It is required that double-row type ball bearing described in any one in 1~4, wherein the rolling element being received in above-mentioned 1st orbit space
It can be contacted in above-mentioned width direction with the rolling element being received in above-mentioned 2nd orbit space.
According to the program, because the rolling element in the rolling element and the 2nd orbit space in the 1st orbit space can carry out a little connecing
Touching can increase the opposite resistance to load for acting on the axial thrust load on double-row type ball bearing.
Invention as claimed in claim 6 is related to a kind of double-row type ball bearing, in the double-row type ball bearing, the 1st
In orbit space and the 2nd orbit space, rolling element is respectively set, the 1st orbit space and the 2nd orbit space are formed in: outer ring
And be arranged between the inner ring of inside of the outer ring, above-mentioned outer ring includes the 1st orbital plane and the 2nd for receiving above-mentioned rolling element respectively
Orbital plane, above-mentioned inner ring is divided into two parts in width direction by the 1st inner ring and the 2nd inner ring, in the 1st inner ring,
Formed and constitute the 1st curved surface of above-mentioned 1st orbit space together with above-mentioned 1st orbital plane, in the 2nd inner ring, formed with it is upper
State the 2nd curved surface that the 2nd orbital plane constitutes above-mentioned 2nd orbit space together, above-mentioned 2nd inner ring by loosen it is chimeric in a manner of pass through it is upper
The 1st inner ring is stated, rivets above-mentioned 1st inner ring in width direction.
According to the program, by being received in the 1st orbit space and the 2nd orbit space internal admission circumferentially continuously
Rolling element, compared with past ball bearing, rolling element can bear high load capacity.In addition, the 1st inner ring is embedded in loosening
State in the minor diameter of 2 inner ring rivets in width direction and is positioned at the 2nd inner ring, even if as a result, in the 1st inner ring and the 2nd
For inner ring in the case where not arranged side by side in same axis, the 1st inner ring, as a result, can be according to identical with respect to the 2nd inner ring and in moving radially
Mode arranged side by side carries out position compensation to the 1st inner ring and the 2nd inner ring on axis.
Invention as claimed in claim 7 provides a kind of double-row type ball bearing, which, which is related to right, wants
The scheme of invention described in asking 6, wherein above-mentioned 2nd inner ring includes:
Minor diameter, the minor diameter by loosen it is chimeric in a manner of pass through above-mentioned 1st inner ring；
Caulking part, the caulking part are set to the front end of the minor diameter, are crimped on the side of above-mentioned 1st inner ring；
Major diameter portion, the major diameter portion are continuously provided in above-mentioned minor diameter, support with the side of above-mentioned 1st inner ring
It connects.
According to the program, caulking part is set only by the front end of the minor diameter in the 2nd inner ring, can be incited somebody to action in width direction
1st inner ring is riveted in the 2nd inner ring.
The effect of invention
According to the present invention, be received in the rolling element in the 1st orbit space and the 2nd orbit space in width direction and continuously
It is accepted, thus compared with past ball bearing, rolling element can bear high load capacity.In addition, can be by making the 1st inner ring and
One of 2 inner ring are moved relative to another one in radial direction, in the 1st inner ring and the 2nd in the way of being arranged in same axis
Ring carries out position compensation.
Detailed description of the invention
Fig. 1 is the assembling exploded view for indicating the double-row type ball bearing of the 1st embodiment of the invention；
Fig. 2 is the longitudinal sectional view of double-row type ball bearing shown in FIG. 1；
Fig. 3 is the relationship and the 2nd curved surface and the 2nd orbit space for indicating the PCD axis of the 1st curved surface and the 1st orbit space
The ideograph of the relationship of PCD axis；
Fig. 4 is the expanded view of rolling element and the 1st bent relation of plane；
Fig. 5 is the longitudinal sectional view for indicating the double-row type ball bearing of the 2nd embodiment of the invention.
Specific embodiment
The double-row type ball bearing of present embodiment is realized by following modes, is related to following double-row type ball axis
It holds, wherein be arranged to provide the space that can be saved, the double-row type ball bearing of high resistance to load be presented, in the 1st rail
In road space and the 2nd orbit space, rolling element is respectively set, the 1st orbit space and the 2nd orbit space are formed in outer ring and set
It is placed between the inner ring of the inside of outer ring, outer ring includes the 1st orbital plane and the 2nd orbital plane for receiving rolling element respectively, and inner ring is logical
It crosses the 1st inner ring and the 2nd inner ring and is divided into two parts in width direction, in the 1st inner ring, formed and the 1st orbital plane one
The 1st curved surface that ground constitutes above-mentioned 1st orbit space is played, in the 2nd inner ring, formation constitutes the 2nd rail together with the 2nd orbital plane
2nd curved surface in road space, in a manner of loosening and be fitted into across the riveting mechanism of the 1st inner ring and the 2nd inner ring in width direction is by the 1st
Ring and the riveting of the 2nd inner ring.
Double-row type ball bearing of the invention is realized by following modes, is related to following double-row type ball bearings,
Wherein, it is arranged to provide the space that can be saved, the double-row type ball bearing of high resistance to load is presented, in the 1st track
In space and the 2nd orbit space, rolling element is respectively set, the 1st orbit space and the 2nd orbit space are formed in: outer ring and setting
It sets between the inner ring of the inside of outer ring, outer ring includes the 1st orbital plane and the 2nd orbital plane for receiving rolling element respectively, and inner ring is logical
It crosses the 1st inner ring and the 2nd inner ring and is divided into two parts in width direction, in the 1st inner ring, formed and above-mentioned 1st track
Face constitutes the 1st curved surface of above-mentioned 1st orbit space together, in the 2nd inner ring, is formed together with above-mentioned 2nd orbital plane
Constitute the 2nd curved surface of above-mentioned 2nd orbit space；1st inner ring is riveted the major diameter portion riveting in portion Yu the 2nd inner ring in width direction
It connects, is embedded in the minor diameter of the 2nd inner ring outside the caulking part, and be set on the end face of minor diameter.
Embodiment
With reference to the accompanying drawings, the double-row type ball bearing 1 of the 1st embodiment of the invention is illustrated.In addition, below
In embodiment, in the occasion of quantity, numerical value, amount, the range for speaking of constituent element etc., in addition to the occasion and principle particularly expressed
On other than the occasion of quantity that clearly dictates, however it is not limited to the specific quantity, even if the situation more than specific quantity
Under, still without relationship.
In addition, speak of constituent element shape, positional relationship when, in addition to especially clear occasion and thinking bright in principle
It is not such occasion etc. aobviously, including substantially approximate its shape or similar occasion etc..
In addition, attached drawing includes for easy understanding feature, and the case where part amplification of feature etc. is exaggerated, constituent element
Dimension scale etc. be not limited to substantially the same occasion.
Fig. 1 is the assembling exploded view of double-row type ball bearing 1.Fig. 2 is the longitudinal sectional view of double-row type ball bearing 1.
Double-row type ball bearing 1 includes outer ring 2, inner ring 3, rolling element 4 and the axis 5 as riveting mechanism.For double-row type
Ball bearing 1, if applying load on the outer peripheral surface 2a of outer ring 2 or the inner peripheral surface 3a of inner ring 3, rolling element 4 is rolled, thus
Bear load.
Outer ring 2 is annular in shape and is formed, and is made of the resin of polyformaldehyde, PEEK etc..On the inner peripheral surface 21 of outer ring 2, shape
At the 1st orbital plane 22 and the 2nd orbital plane 23.In the 1st orbital plane 22 and the 2nd orbital plane 23, inner peripheral surface 21 is hemispherical and recessed
And if being set in width direction W.
Inner ring 3 is made by the metal of carbon steel etc..Inner ring 3 is set to the inner circumferential of outer ring 2.Inner ring 3 is divided in width direction W
For 2 parts, it is made of the 1st inner ring 31 with the 2nd inner ring 32.
On the outer peripheral surface 33 of the 1st inner ring 31, formed the 1st curved surface 34, the 1st curved surface 34 according to 22 face of the 1st orbital plane
Pair mode formed.1st curved surface 34 and the 1st orbital plane 22 together, form the 1st orbit space A1.
On the outer peripheral surface 35 of the 2nd inner ring 32, formed the 2nd curved surface 36, the 2nd curved surface 36 according to 23 face of the 2nd orbital plane
Pair mode formed.2nd curved surface 36 and the 2nd orbital plane 23 together, form the 2nd orbit space A2.2nd inner ring 32 is according to opposite
1st inner ring 31 and substantially mirror-symmetrical mode is formed.
Fig. 3 is the relationship and the 2nd curved surface 36 and the 2nd rail for indicating the PCD axis L1 of the 1st curved surface 34 and the 1st orbit space A1
The ideograph of the relationship of the PCD axis L2 of road space A2.As shown in Figure 3, the central point O1 of the 1st curved surface 34 is set to
On the PCD axis L1 of 1 orbit space A1.In addition, the central point O2 of the 2nd curved surface 36 is set to the PCD axis of the 2nd orbit space A2
On L2.In addition, the radius of curvature r1 of the 1st curved surface 34 and the radius of curvature r2 of the 2nd curved surface 36 are equally set.1st curved surface as a result,
34 and the 2nd curved surface 36 constitutes single orbital plane.
Rolling element 4 is steel ball.Rolling element 4 according to the diameter of 3.5mm for example, form.Rolling element 4 is received in the 1st respectively
In orbit space A1 and the 2nd orbit space A2.The rolling element in rolling element 4 and the 2nd orbit space A2 in 1st orbit space A1
4 can carry out point contact in width direction W.
The minor diameter 51 of axis 5 passes through the inner circumferential of the 1st inner ring 31 and the 2nd inner ring 32.It is formed in the front end of minor diameter 51
Caulking part 52, the caulking part 52 are crimped on the side of the 1st inner ring 31.In addition, the side of the major diameter portion 53 of the base end side of axis 5
It is abutted with the 2nd inner ring 32.In addition, between axis 5 and the 1st inner ring 31 and the 2nd inner ring 32, it is ensured that gap slightly.
The assembling sequence of double-row type ball bearing 1 is illustrated below.Firstly, the 2nd inner ring 32 is passed through minor diameter
51 base end side.Then, outer ring 2 is set on the periphery of the 2nd inner ring 32.What is formed by the 2nd orbital plane 23 and the 2nd curved surface 36
The rolling element 4 of specified quantity is assembled in 2nd orbit space A2.
Then, in the rolling element 4 of 22 over-assemble specified quantity of the 1st orbital plane.The 1st inner ring 31 is set to pass through minor diameter 51
Front end, presses the front end of minor diameter 51 and the caulking part 52 that is formed is crimped in the 1st inner ring 31, the side of major diameter portion 53 with
2nd inner ring 32 abuts, and as a result, in width direction W, the 1st inner ring 31 and the 2nd inner ring 32 are riveted.
In addition, as shown in Figure 4, between rolling element 4 and the 1st curved surface 34, it is ensured that clearance G slightly.Clearance G is set
It is scheduled on for example, 0.3mm.In addition, similarly ensuring gap between rolling element 4 and the 2nd curved surface 36.Even if passing through as a result,
The external force on the outer peripheral surface 2a of outer ring 2 is acted on, outer ring 2 is rolled in the case where width direction W is slided with the amount of clearance G
Body 4 still can be rolled continuously in the 1st orbit space A1 and in the 2nd orbit space A2.
The axle center adjustment function of inner ring 3 is illustrated below.
Between minor diameter 51 and the 1st inner ring 31 and between minor diameter 51 and the 2nd inner ring 32, between ensuring respectively
Gap, the 1st inner ring 31 and the 2nd inner ring 32 can be moved slightly radially respectively.Even if as a result, at the center and the 2nd of the 1st inner ring 31
In the case that the center of inner ring is inconsistent, the 1st inner ring 31 and the 2nd inner ring 32 are diametrically opposite being moved, as a result, the 1st inner ring 31
Center and the center of the 2nd inner ring can be adjusted in the way of being set in same axis.
Like this, in the double-row type ball bearing 1 of the present embodiment, the 1st orbit space A1 and the 2nd orbit space are received in
Rolling element 4 inside A2 is in receiving circumferentially continuously, and as a result, compared with past ball bearing, rolling element 4 can be born
High load capacity.
In addition, by the state that is embedded in minor diameter 51 of loosening, width direction will be in the 1st inner ring 31 and the 2nd
Ring 32 rivets, even if in the 1st inner ring 31 and the 2nd inner ring 32 not in same axis side by side, the 1st inner ring 31 and the 2nd
One of inner ring 32, as a result, can be according to mode arranged side by side in same axis to the 1st inner ring with respect to another one and in moving radially
The position of 31 and the 2nd inner ring 32 compensates.
In addition, the specific structure for the riveting mechanism that the 1st inner ring 31 and the 2nd inner ring 32 rivet is not limited in width direction
Axis 5 is stated, for example, no matter be which type of structure that caulking part etc. is set on the both ends of axis 5, it is not related.
Below according to attached drawing, the double-row type ball bearing 6 of the 2nd embodiment of the invention is illustrated.Fig. 5 is double
The longitudinal sectional view of formula ball bearing 6.For double-row type ball bearing 6, compared with above-mentioned double-row type ball bearing 1, save
The structure of slightly axis 5, inner ring 3 is different, and other structures are common.Then, for common knot in double-row type ball bearing 6
Structure, using same label, the repetitive description thereof will be omitted.
Inner ring 3 is divided into 2 directions in width direction W, is made of the 1st inner ring 31 and the 2nd inner ring 32.
2nd inner ring 32 includes minor diameter 37 and major diameter portion 38.Minor diameter 37 is embedded in the 1st inner ring 31 to loosen
Inner circumferential.The caulking part 39 for being set to the front end of minor diameter 37 is crimped on the side of the 1st inner ring 31.Major diameter portion 38 and the 1st
The side of inner ring 31 abuts.
The assembling sequence of double-row type ball bearing 1 is illustrated below.Firstly, outer ring 2 is set to the 2nd inner ring 32
On the periphery of major diameter portion 38.In the 2nd orbit space A2 over-assemble stated number formed by the 2nd orbital plane 23 and the 2nd curved surface 36
The rolling element 4 of amount.
Then, in the rolling element 4 of 22 over-assemble specified quantity of the 1st orbital plane.The 1st inner ring 31 is set to pass through the 2nd inner ring 32
Minor diameter 37, the caulking part 39 for being set to the front end of minor diameter 37 are crimped in the 1st inner ring 31, major diameter portion 38 and the 1st
Internal diameter 31 abuts, and can rivet the 1st inner ring 31 and the 2nd inner ring 32 in width direction W as a result,.
In addition, between rolling element 4 and the 1st curved surface 34 between rolling element 4 and the 2nd curved surface 36, it is ensured that gap slightly.
Even if the external force on the outer peripheral surface 2a by acting on outer ring 2 as a result, outer ring 2 is in the case where width direction W is slided, rolling
Kinetoplast 4 still can be carried out continuously rolling inside the 1st orbit space A1 and inside the 2nd orbit space A2.
The axle center adjustment function of inner ring 3 is illustrated below.
Between the 1st inner ring 31 and the minor diameter 37 of the 2nd inner ring 32, it is ensured that gap, the 1st inner ring 31 can be with respect to the 2nd in
Ring 32 is moved in radial direction.Even if as a result, in the case where the center at the center of the 1st inner ring 31 and the 2nd inner ring 32 is inconsistent, the
1 inner ring 31 can be moved with respect to the 2nd inner ring 32 in radial direction, can be adjusted in the 1st in the way of being set in same axis as a result,
The center at the center of ring 31 and the 2nd inner ring 32.
Like this, it in the double-row type ball bearing 6 of present embodiment, is received in the 1st orbit space A1 and the 2nd track is empty
Between rolling element 4 in A2 receiving circumferentially continuously, thus compared with past ball bearing, rolling element 4 can be born
High load capacity.
In addition, the 1st inner ring 31 is loosening the state in the minor diameter 37 for being embedded in the 2nd internal diameter 32, it is fixed in width direction W
In the 2nd inner ring 32, even if as a result, in the 1st inner ring 31 and the 2nd internal diameter 32 not in same axis side by side, the 1st
Inner ring 31, as a result, can be according to mode arranged side by side in same axis to the 1st inner ring 31 still with respect to the 2nd inner ring 32 and in moving radially
It is compensated with the position of the 2nd internal diameter 32.
In addition, the specific structure in width direction W the 2nd inner ring 32 for positioning the 1st inner ring 31 is not limited to above-mentioned knot
Structure, whencesoever the structure of sample, not related.
In addition, as long as it does not depart from the spirit of the invention, the present invention can carry out various changes, in addition, the present invention is gone back certainly
It is related to the scheme of the change.
The explanation of label:
Label 1,6 indicates double-row type ball bearing；
Label 2 indicates outer ring；
Label 2a indicates outer peripheral surface；
Label 21 indicates (outer ring) inner peripheral surface；
Label 22 indicates the 1st orbital plane；
Label 23 indicates the 2nd orbital plane；
Label 3 indicates inner ring；
Label 3a indicates inner peripheral surface；
Label 31 indicates the 1st inner ring；
Label 32 indicates the 2nd inner ring；
Label 33 indicates (the 1st inner ring) outer peripheral surface；
Label 34 indicates the 1st curved surface；
Label 35 indicates (the 2nd inner ring) outer peripheral surface；
Label 36 indicates the 2nd curved surface；
Label 37 indicates minor diameter；
Label 38 indicates outer diameter part；
Label 39 indicates caulking part；
Label 4 indicates rolling element；
Label 5 indicates axis (riveting mechanism)；
Label 51 indicates minor diameter；
Label 52 indicates caulking part；
Label 53 indicates major diameter portion；
Symbol A1 indicates the 1st orbit space；
Symbol A2 indicates the 2nd orbit space；
Symbol W indicates width direction.
Claims (7)
1. a kind of double-row type ball bearing is being formed in outer ring and is being set in the outer ring in the double-row type ball bearing
The 1st orbit space and the 2nd orbit space between the inner ring of side, are respectively set rolling element, which is characterized in that
The outer ring includes the 1st orbital plane and the 2nd orbital plane for receiving above-mentioned rolling element respectively,
Above-mentioned inner ring is divided into two parts in width direction by the 1st inner ring and the 2nd inner ring, in the 1st inner ring, is formed
The 1st curved surface that above-mentioned 1st orbit space is constituted together with above-mentioned 1st orbital plane is formed and the above-mentioned 2nd in the 2nd inner ring
Orbital plane constitutes the 2nd curved surface of above-mentioned 2nd orbit space together,
By loosen it is chimeric in a manner of pass through the riveting mechanism of above-mentioned 1st inner ring and the 2nd inner ring width direction will above-mentioned 1st inner ring with
The riveting of 2nd inner ring.
2. double-row type ball bearing according to claim 1, which is characterized in that the riveting mechanism includes:
Minor diameter, the minor diameter by loosen it is chimeric in a manner of pass through above-mentioned 1st inner ring or the 2nd inner ring；
Caulking part, the caulking part are formed in the front end of the minor diameter, are crimped on the side of above-mentioned 1st inner ring；
Major diameter portion, the major diameter portion are continuously provided in above-mentioned minor diameter, abut with the side of above-mentioned 2nd inner ring.
3. double-row type ball bearing according to claim 1 or 2, which is characterized in that in above-mentioned rolling element and above-mentioned 1st song
Between face or the 2nd curved surface, ensure gap in width direction.
4. double-row type ball bearing described in any one according to claim 1~3, which is characterized in that above-mentioned 1st curved surface
Central point be set on the PCD axis of above-mentioned 1st orbit space；
The central point of above-mentioned 2nd curved surface is set on the PCD axis of above-mentioned 2nd orbit space；
Above-mentioned 1st curved surface and above-mentioned 2nd curved surface are formed with same radius of curvature, form single orbital plane.
5. double-row type ball bearing described in any one according to claim 1~4, which is characterized in that be received in above-mentioned
Rolling element in 1st orbit space can be contacted with the rolling element being received in above-mentioned 2nd orbit space in above-mentioned width direction.
6. a kind of double-row type ball bearing, in the double-row type ball bearing, in the 1st orbit space and the 2nd orbit space, point
Not She Zhi rolling element, the 1st orbit space and the 2nd orbit space be formed in: outer ring and be arranged in the outer ring inside inner ring
Between, which is characterized in that
Above-mentioned outer ring includes the 1st orbital plane and the 2nd orbital plane for receiving above-mentioned rolling element respectively；
Above-mentioned inner ring is divided into two parts in width direction by the 1st inner ring and the 2nd inner ring, in the 1st inner ring, is formed
The 1st curved surface that above-mentioned 1st orbit space is constituted together with above-mentioned 1st orbital plane is formed and the above-mentioned 2nd in the 2nd inner ring
Orbital plane constitutes the 2nd curved surface of above-mentioned 2nd orbit space together；
Above-mentioned 2nd inner ring by loosen it is chimeric in a manner of pass through above-mentioned 1st inner ring, rivet above-mentioned 1st inner ring in width direction.
7. double-row type ball bearing according to claim 6, which is characterized in that above-mentioned 2nd inner ring includes:
Minor diameter, the minor diameter by loosen it is chimeric in a manner of pass through above-mentioned 1st inner ring；
Caulking part, the caulking part are formed in the front end of the minor diameter, are crimped on the side of above-mentioned 1st inner ring；
Major diameter portion, the major diameter portion are continuously provided in above-mentioned minor diameter, abut with the side of above-mentioned 1st inner ring.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2016184237A JP6818343B2 (en) | 2016-09-21 | 2016-09-21 | Double row ball bearing |
| JP2016-184237 | 2016-09-21 | ||
| PCT/JP2017/030833 WO2018055991A1 (en) | 2016-09-21 | 2017-08-29 | Double-row ball bearing |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109715962A true CN109715962A (en) | 2019-05-03 |
| CN109715962B CN109715962B (en) | 2021-06-01 |
Family
ID=61690449
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201780057826.3A Active CN109715962B (en) | 2016-09-21 | 2017-08-29 | Double-row ball bearing |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP6818343B2 (en) |
| CN (1) | CN109715962B (en) |
| WO (1) | WO2018055991A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112867876A (en) * | 2019-09-24 | 2021-05-28 | 世客思株式会社 | Bearing assembly |
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| DE10129700A1 (en) * | 2001-01-26 | 2002-08-01 | Continental Teves Ag & Co Ohg | Ball bearing for vehicle wheel has inner ring with radial arms on which second inner ring is mounted which is held in position by arms |
| JP2006105384A (en) * | 2004-09-08 | 2006-04-20 | Nsk Ltd | Double row ball bearing |
| JP2008138719A (en) * | 2006-11-30 | 2008-06-19 | Jtekt Corp | Double-row rolling bearing |
| JP2009275792A (en) * | 2008-05-14 | 2009-11-26 | Ntn Corp | Friction bearing |
| JP5593768B2 (en) * | 2010-03-25 | 2014-09-24 | 日本精工株式会社 | Bearing device |
| JP2016061317A (en) * | 2014-09-16 | 2016-04-25 | Ntn株式会社 | Double-row angular ball bearing for ct scanner device |
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2016
- 2016-09-21 JP JP2016184237A patent/JP6818343B2/en active Active
-
2017
- 2017-08-29 CN CN201780057826.3A patent/CN109715962B/en active Active
- 2017-08-29 WO PCT/JP2017/030833 patent/WO2018055991A1/en active Application Filing
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|---|---|---|---|---|
| JP2008196578A (en) * | 2007-02-13 | 2008-08-28 | Nsk Ltd | Bearing unit |
| CN202901002U (en) * | 2012-09-14 | 2013-04-24 | 湖北新火炬科技股份有限公司 | Lightweight hub bearing unit for car |
| CN203009562U (en) * | 2012-12-12 | 2013-06-19 | 中山市盈科轴承制造有限公司 | Bolt idler wheel bearing |
| CN104121281A (en) * | 2014-06-25 | 2014-10-29 | 芜湖众绅机械制造有限公司 | Angular contact ball bearing unit for driving wheel |
| DE202014006133U1 (en) * | 2014-08-01 | 2014-10-01 | European Trailer Systems Gmbh | role |
| CN106795911A (en) * | 2014-08-01 | 2017-05-31 | 欧洲拖车系统有限公司 | Roller |
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| CN112867876A (en) * | 2019-09-24 | 2021-05-28 | 世客思株式会社 | Bearing assembly |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2018055991A1 (en) | 2018-03-29 |
| CN109715962B (en) | 2021-06-01 |
| JP6818343B2 (en) | 2021-01-20 |
| JP2018048692A (en) | 2018-03-29 |
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