CN202811822U - Rotary bearing for bicycle - Google Patents
Rotary bearing for bicycle Download PDFInfo
- Publication number
- CN202811822U CN202811822U CN 201220316863 CN201220316863U CN202811822U CN 202811822 U CN202811822 U CN 202811822U CN 201220316863 CN201220316863 CN 201220316863 CN 201220316863 U CN201220316863 U CN 201220316863U CN 202811822 U CN202811822 U CN 202811822U
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- sealing
- bearing
- wheel
- rotary bearing
- contacting part
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Abstract
The utility model relates to a rotary bearing for a bicycle. The rotary bearing comprises an external wheel, an internal wheel, a plurality of rotating bodies and sealing members, wherein the external wheel is provided with sealed fixing parts; the internal wheel is provided with sealed contact parts; the plurality of rotating bodies are configured between the external wheel and the internal wheel; the sealing members are assembled at the sealed fixing parts of the external wheel and slide on the sealed contact parts of the internal wheel; and the sealed contact parts of the internal wheel are formed on the radial inner sides of the rotating bodies. Therefore, when the internal wheel rotates relative to the external wheel and the sealing members slide on the sealed contact parts, the radiuses of the sealed contact parts are less than that of sealed contact parts in the prior art, and thus torque and sliding resistance generated by the friction of the sealing members are reduced. As a result, the rotary bearing can be sealed, and the low rotation efficiency of the rotary bearing can be restrained.
Description
Technical field
The utility model is relevant for a kind of rotary bearing, particularly a kind of rotary bearing for bicycle.
Background technique
The rotating part of bicycle uses rotary bearing.For example use rotary bearing in the part of the crankshaft that supports bicycle.Rotary bearing has foreign steamer, the interior wheel and rotor.In the crankshaft installing, take turns, and install foreign steamer at the bottom bracket of bicycle.Has sealing component in order to stop impurity to invade rotor, to be known in this kind rotary bearing.Sealing component can be installed in foreign steamer, and is contacted with a little that canyon topography is formed in interior sealing contacting part of taking turns outer circumferential face.The sealing contacting part is formed at the radial outside (for example, Japanese kokai publication hei 2007-286002 communique) that rotor is contacted with interior position of taking turns.
Rotary bearing with this sealing component, its sealing component can be located at interior sealing contacting part of taking turns and slide.Consequently, because of the friction that the slip by sealing component produces, restrain the interior torque of taking turns rotation and produce, might cause the rotation efficiency of rotary bearing to reduce.
The model utility content
The purpose of this utility model namely provides a kind of rotary bearing for bicycle, and this rotary bearing had both had sealing effect, and the rotation efficiency that can suppress again rotary bearing reduces.
Above-mentioned the purpose of this utility model is to be realized by following technological scheme:
The utility model provides a kind of rotary bearing for bicycle, comprising: foreign steamer, and it has seal holder part; The interior wheel, it has the sealing contacting part; A plurality of rotors, it is disposed at this foreign steamer and is somebody's turn to do between the interior wheel; And sealing component, it is installed in the sealing fixing part of this foreign steamer, and slides on the sealing contacting part of taking turns in this; The sealing contacting part of wheel is formed at the radially inner side of this rotor in being somebody's turn to do.
Aforesaid rotary bearing for bicycle, wheel has the extension that stretches out in this foreign steamer at width direction in this, and the sealing contacting part is formed at this extension.
Aforesaid rotary bearing for bicycle, this extension and sealing member relatively this rotor can be disposed at the axial outside, axial inboard or axially inside and outside both sides.
Aforesaid rotary bearing for bicycle, the sealing contacting part is made through abrasive machining.
By above technological scheme, the utility model has the advantage of:
The sealing contacting part that contacts with the sealing component of this rotary bearing is formed at the radially inner side of rotor.Thereby, take turns rotate relative with foreign steamer when interior, when sealing component slides at the sealing contacting part, the sealing contacting part radius of the radius ratio prior art of sealing contacting part is less, the torque that occurs by the friction of sealing component diminishes, and the slip resistance that occurs by the friction of sealing component simultaneously diminishes.Thereby can the sealed rotational bearing, the rotation efficiency that can suppress again rotary bearing reduces.
Description of drawings
Fig. 1 is for adopting the utility model the first embodiment to be used for the sectional drawing of the crank assembly of bicycle.
Fig. 2 is the sectional drawing of rotary bearing that is installed in the utility model first embodiment of crank assembly.
Fig. 3 is the sectional drawing of rotary bearing that is installed in the utility model second embodiment of crank assembly.
Fig. 4 is the sectional drawing of rotary bearing that is installed in the utility model the 3rd embodiment of crank assembly.
Fig. 5 is the sectional drawing of rotary bearing that is installed in the utility model the 4th embodiment of crank assembly.
The primary component label declaration:
10 crank assemblies
12 suspention sections
The right box thread of 12a section
The left box thread of 12b section
20 crankshafts
22 bottom brackets
23 " o " shape ring
24 right cranks
26 left cranks
27 right bearing unit
28 left bearing unit
29 linking members
32 bearing cases
The 32a fixing part
The 32b male screw portion
32c bearing container
Section is closed by 32d T tool system
32e the 3rd sealing contacting part
33 ball bearings
34 sealing backplates
The 34a cylindrical portion
The 34b annulus
The 34c projection
34d seals installing department
35 sprocket wheel assembly departments
36 crankwebs
37 first sprocket wheels
38 second sprocket wheels
39 the 3rd sprocket wheels
40 foreign steamers
40a the first seal holder part
40b the first sealing is ditch fixedly
40c the second seal holder part
40d the second sealing is ditch fixedly
42 interior wheels
42a the first sealing contacting part
The 42b extension
42c the second sealing contacting part
44 rotors
46 first sealing components
46a the first reinforcing ring
46b the first sealed department
46c the first lip
48 second sealing components
48a the second reinforcing ring
48b the second sealed department
48c the second lip
50 retainers
51 the 3rd sealing components
52 first construction bolts
54 second construction bolts
56 fixing bolts
127 right bearing unit
132 bearing cases
132c bearing container
132e the 3rd sealing contacting part
133 ball bearings
134 sealing backplates
The 134a cylindrical portion
The 134b annulus
The 134c projection
134d seals installing department
140 foreign steamers
140a the first seal holder part
140b the first sealing is ditch fixedly
142 interior wheels
142a the first sealing contacting part
144 rotors
146 first sealing components
146a the first reinforcing ring
146b the first sealed department
148 second sealing components
150 retainers
151 the 3rd sealing components
232 bearing cases
232c bearing container
233 ball bearings
234 sealing backplates
The 234a cylindrical portion
242 interior wheels
242a the first sealing contacting part
The 242b extension
244 rotors
246 first sealing components
248 second sealing components
333 ball bearings
340 foreign steamers
340a the first seal holder part
342 interior wheels
342a the first sealing contacting part
344 rotors
346 first sealing components
The C1 central position
C2 axle core
The C3 center line
Embodiment
For making goal of the invention of the present utility model, technological means and technique effect have more complete and clearly disclosing, hereby in lower detailed description, and see also accompanying drawing and element numbers.
The＜the first embodiment 〉
Adopt the utility model the first embodiment's crank assembly 10, as shown in Figure 1, be located at the suspention section 12 of the tubular that is formed on the framework bottom.In addition, in following explanation, about about when referring to up and down under being installed on the state of bicycle to observe bicycle from the rear about about.In addition, Fig. 1 cuts off at the central position of crankshaft C1, and crank assembly 10 is cut apart up and down to describe.
Form the right box thread 12a of section and the left box thread 12b of section at the two ends of suspention section 12 inner peripheral surface.Crank assembly 10 have the crankshaft 20 of hollow, with rotating freely support crankshaft 20 bottom bracket 22, be pressed into, then fixing right crank 24, and freely be fixed in the left crank 26 of crankshaft 20 left ends with loading and unloading by the right-hand member of crankshaft 20.
In addition, following explanation will be called axial inboard near the side of the axial central position C1 of crankshaft 20, and the side that will leave from the axial central position C1 of crankshaft 20 is called the axial outside.In addition, radially inner side and radial outside are for radially recording and narrating from the axle core C2 of crankshaft.
Right bearing unit 27 and left bearing unit 28 have respectively the bearing case 32 that is fixed in suspention section 12; The rotary bearing that is accommodated in the utility model first embodiment of bearing case 32 namely is ball bearing 33; And sealing backplate 34.Left bearing unit 28 and 27 pairs of central positions, right bearing unit C1 line essence axisymmetric, and the member of the same configuration of configuration.Therefore, only explain with regard to right bearing unit 27 in following explanation, and the explanation of omitting left bearing unit 28.
Bearing case 32 is the member with the rank tubular.Bearing case 32 has the large bearing container 32c of diameter of the little fixing part 32a of diameter and collection ball bearing 33.Fixing part 32a has the male screw portion 32b of the 12a of box thread section (or left box thread 12b of section) that is screwed together in suspention section 12.At the chimeric linking member 29 of the inner peripheral surface of fixing part 32a.It can be to share in the instrument system of the instrument that screws in suspention section 12 to close the 32d of section that bearing container 32c has at outer circumferential face.In addition, in the interior perimembranous of bearing container 32c opening side, hollowly form the 3rd sealing contacting part 32e that can contact the 3rd sealing component 51 described later to the radial outside of other parts.The 3rd sealing contacting part 32e is formed at the axial outside of ball bearing 33.
As shown in Figure 2, ball bearing 33 is deep groove ball bearing.Ball bearing 33 possesses: have the first seal holder part 40a foreign steamer 40, have interior wheel 42, a plurality of rotor 44 of the first sealing contacting part 42a and be installed in the first sealing component 46 of the first seal holder part 40a.In addition, ball bearing 33 further possesses the second sealing component 48 and retainer 50.The first seal holder part 40a is an example of seal holder part of the present utility model.The first sealing component 46 is an example of sealing component of the present utility model.
Interior take turns 42 in interior all sides of foreign steamer 40 every disposing with the interval.Interiorly take turns 42 at width direction that is axially have the extension 42b that stretches out than foreign steamer 40.The first embodiment's extension 42b relatively rotates body 44 and is disposed at the axial outside.Form the first sealing contacting part 42a at extension 42b.The first sealing contacting part 42a is formed at the radially inner side of rotor 44.The first sealing contacting part 42a should implement abrasive machining.In the present embodiment, interior end of taking turns 42 axial inboard is arranged at the end part aligning position with the axial inboard of foreign steamer 40.In addition, interiorly take turns 42 and have the second sealing contacting part 42c at outer circumferential face.Be formed to the second sealing contacting part 42c annular recess interior 42 the outer circumferential face of taking turns.The wall of the second sealing contacting part 42c contacts the tip portion of the second sealing component 48.The second sealing component 48 radially is contacted with the second sealing contacting part 42c slightly in the outer part rotor 44.
The first sealing component 46 of the first embodiment relatively rotates body 44 and is disposed at the axial outside.The first sealing component 46 prevents the impurity intrusion rotors 44 such as dust and liquid in axial outer side sealing foreign steamer 40 and interior 42 the gap of taking turns.The first sealing component 46 have metal the first reinforcing ring 46a and with the first sealed department 46b of the integrally formed synthetic rubber system of the first reinforcing ring 46a.The peripheral part of the first reinforcing ring 46a is disposed at the fixedly radially inner side of ditch 40b of the first sealing.The peripheral part of the first sealed department 46b is installed in fixedly ditch 40b of the first sealing.Since the first sealed department 46b be close in the first sealing fixedly the part of ditch 40b do not dispose the first reinforcing ring 46a, therefore the first sealing component 46 can utilize elasticity and be installed in first and seal fixedly ditch 40b.The first sealing component 46 can be contacted with the first sealing contacting part 42a, and has the first thin lip 46c of other parts of Thickness Ratio.The first lip 46c forms the cone-shaped to axial outside undergauge.The first lip 46c extends to the tip side of extension 42b.
The second sealing component 48 of the first embodiment relatively rotates body 44 and is disposed at axial inboard.The second sealing component 48 is in axial inner seal foreign steamer 40 and interior 42 the gap of taking turns, and prevents that the impurity such as dust and liquid from invading rotor 44.The second sealing component 48 have metal the second reinforcing ring 48a and with the second sealed department 48b of the integrally formed synthetic rubber system of the second reinforcing ring 48a.The peripheral part of the second reinforcing ring 48a is disposed at the fixedly radially inner side of ditch 40d of the second sealing.The peripheral part of the second sealed department 48b is installed in fixedly ditch 40d of the second sealing.Since the second sealed department 48b be close in the second sealing fixedly the part of ditch 40d do not dispose the second reinforcing ring 48a, therefore the second sealing component 48 can utilize elasticity and be installed in second and seal fixedly ditch 40d.The second sealing component 48 of the first embodiment relatively rotates body 44 and is disposed at axial inboard.The second sealing component 48 can be contacted with the second sealing contacting part 42c, and has the second thin lip 48c of other parts of Thickness Ratio.The second lip 48c forms towards the axial outside and the cone-shaped of undergauge.
As shown in Figure 1, sealing backplate 34 is contacted with right crank 24 and disposes.As shown in Figure 2, sealing backplate 34 has and is disposed at crankshaft 20 and the interior annulus 34b that takes turns the cylindrical portion 34a between 42 and be disposed at the top of cylindrical portion 34a.Be formed for the projection 34c of anti-avulsion on the top of cylindrical portion 34a (Fig. 2 left end).The joint of annulus 34b and cylindrical portion 34a forms for the axial outside from a pleurapophysis of bearing case 32.The peripheral part of annulus 34b is disposed at the axial inboard of bearing case 32.Thereby annulus 34b forms the halfway flat disk of slight curvature of its section.Radial outside section at annulus 34b forms towards foreign steamer 40 and the sealing installing department 34d of extension.Installing prevents that the impurity such as dust and liquid are from the 3rd sealing component 51 of axial outside intrusion ball bearing 33 in sealing installing department 34d.The inner peripheral surface of the 3rd sealing component 51 stuffing box bearing shells 32 and the gap that seals backplate 34.
The ball bearing 33 of structure like this, the radial position of the first sealing contacting part 42a that contacts with the first sealing component 46 are disposed at the radially inner side of previous sealing contacting part (for example the second sealing contacting part 42c).Particularly, the first sealing contacting part 42a is formed at the radially inner side of rotor 44.Thereby even foreign steamer 40 is taken turns 42 relative rotations with interior, sealing component slides at the sealing contacting part, and the slip resistance that produces because of friction diminishes.Thereby even sealed a side of ball bearing 33, the rotation efficiency that still can suppress ball bearing 33 reduces.
In addition, because the first sealing contacting part 42a is formed at the extension 42b that axially stretches out than foreign steamer 40, therefore can fully guarantee the deflection surplus of the first sealing component 46, even foreign steamer 40 and interiorly produce distortion between taking turns 42 still can make the tracing ability of 46 pairs first sealings of the first sealing component contacting part 42a improve.
Moreover because the first sealing contacting part 42a is through abrasive machining, therefore the first sealing contacting part 42a is level and smooth.Thereby first lip 46c can slide more sleekly to the first sealing contacting part 42a.
As shown in Figure 1, right crank 24 has sprocket wheel assembly department 35, crankweb 36, the number of teeth at most the second sprocket wheel 38, and the 3rd sprocket wheel 39 of the number of teeth minimum (for example 24T) of the first sprocket wheel 37, the middle number of teeth (for example 32T) of (for example 42T).
Sprocket wheel assembly department 35 is fixed the first sprocket wheel 37 to the 3rd sprocket wheels 39 in the many places of Zhou Fangxiang.Crankweb 36 can be installed pedal on the top.The crankweb 36 of present embodiment is integrally formed with sprocket wheel assembly department 35, but also can form independently crankweb 36 and sprocket wheel assembly department 35.
The first sprocket wheel 37 is fixed in sprocket wheel assembly department 35 by from axial inboard a plurality of the first construction bolts 52 that insert with the second sprocket wheel 38.The 3rd sprocket wheel 39 is by from axial inboard branched the second construction bolt 54 that inserts, and is fixed in sprocket wheel assembly department 35 at the radially inner side of the first sprocket wheel 37.
Left crank 26 can be installed pedal on the top, and by sawtooth (without diagram) but one is linked to crankshaft 20 rotatably.And the fixing bolt 56 that screws togather by the left side with crankshaft 20 and be fixed in crankshaft 20.Pedal can be installed in top at left crank.
The crank assembly 10 of this kind structure, crankshaft 20 rotations during pedal under being installed in the state of bicycle.During crankshaft 20 rotation, the interior wheel 42 of ball bearing 33 is with crankshaft 20 rotations.In the time of should interiorly taking turns 42 rotation, the first sealing component 46 slides on the first sealing contacting part 42a at the radially inner side of rotor 44.In the utility model, the 46 fricative slip resistance of the first sealing component are less than previous sealing component.By this, even sealed a side of ball bearing 33, the rotation efficiency that still can suppress ball bearing 33 reduces.
The＜the second embodiment 〉
The first embodiment arranges extension 42b interior the wheel in 42, the second embodiment does not then establish extension.Among second embodiment shown in Figure 3, the bearing case 132 of right bearing unit 127 and left bearing unit, ball bearing 133 and sealing backplate 134 are different from the first embodiment.
Among Fig. 3, adopt the second embodiment's right bearing unit 127 and left bearing unit to have respectively the bearing case 132 that is fixed in suspention section; The rotary bearing that is accommodated in the utility model second embodiment of bearing case 132 namely is ball bearing 133; And sealing backplate 134.
The fixing part of bearing case 132 is the structure same with the first embodiment.Bearing container 132c shortens the axial length of Integral ball bearing 133 because ball bearing 133 there is no extension.Thereby the axial length of bearing container 132c is shorter than the first embodiment's bearing container 32c.In addition, the interior perimembranous at bearing container 132c forms the 3rd sealing contacting part 132e that can contact the 3rd sealing component 151.
The second embodiment's the first sealing component 146 and the first embodiment similarly relatively rotate body 144 and are disposed at the axial outside.The first sealing component 146 prevents the impurity intrusion rotors 144 such as dust and liquid in axial outer side sealing foreign steamer 140 and interior 142 the gap of taking turns.The first sealing component 146 have metal the first reinforcing ring 146a and with the first sealed department 146b of the integrally formed synthetic rubber system of the first reinforcing ring 146a.The first reinforcing ring 146a and the first embodiment are same structure.The peripheral part of the first sealed department 146b is installed in first of the first seal holder part 140a and seals fixedly ditch 140b.Since the first sealed department 146b be close in the first sealing fixedly the part of ditch 140b do not dispose the first reinforcing ring 146a, therefore the first sealing component 146 can utilize elasticity and be installed in first and seal fixedly ditch 140b.The first sealing component 146 can be contacted with the first sealing contacting part 142a, and has the first thin lip 146c of other parts of Thickness Ratio.The first lip 146c forms towards the axial outside and the cone-shaped of undergauge.But its axial length is shorter than the first lip 46c of the first embodiment.
As shown in Figure 3, sealing backplate 134 has and is disposed at crankshaft 20 and the interior annulus 134b that takes turns the cylindrical portion 134a between 142 and be disposed at cylindrical portion 134a top.Be formed for the projection 134c of anti-avulsion on the top of cylindrical portion 134a (Fig. 3 left end).Annulus 134b forms ring-type.Radial outside section tubular ground at annulus 134b forms the sealing installing department 134d that extends in axle direction and foreign steamer 140 bedded positions.Be used for preventing that in sealing installing department 134d installing the impurity such as dust and liquid are from the 3rd sealing component 151 of axial outside intrusion ball bearing 133.The inner peripheral surface of the 3rd sealing component 151 stuffing box bearing shells 132 and the gap that seals backplate 134.Other structures and the first embodiment are same.
So in the second embodiment's of structure the ball bearing 133, the first sealing contacting part 142a also is formed at the radially inner side of rotor 144, and the performance action effect same with the first embodiment.In addition, because extension is not set, therefore can seek ball bearing 133 weight savings.In addition, because extension is not set, so the axial length of bearing case 132 shortens, therefore can seek the weight saving of bearing case 132.
The＜the three embodiment 〉
The 3rd embodiment's shown in Figure 4 ball bearing 233 relatively rotates interior 242 extension 242b and the first sealing component 246 of taking turns body 244 and is disposed at axial inboard, and the non axial outside.The structure of the 3rd embodiment's ball bearing 233 itself is identical with the first embodiment's ball bearing 33, and ball bearing 233 compare ball bearing 33 and be about counter-rotating dispose.Thereby second sealing component 248 relatively rotate body 244 and be disposed at the axial outside.Be disposed at axial inboard by extension 242b and the first sealing component 246 are relatively rotated body 244, the bearing container 232c of bearing case 232 becomes the structure same with the second embodiment's bearing container 132c.Thereby the axial length of bearing case 232 is shorter than the first embodiment's bearing case 32.
In addition, because extension 242b is located at interior the wheel in 242, so the axial length of the cylindrical portion 234a of sealing backplate 234 is longer than the second embodiment's cylindrical portion 134a.Other structures of sealing backplate 234 are identical with the second embodiment.
So in the 3rd embodiment's of structure the ball bearing 233, the first sealing contacting part 242a also is formed at the radially inner side of rotor 244, and the performance action effect same with the first embodiment.Because extension 242b is disposed at axial inboard, so the axial length of bearing case 232 shortens, and can seek the weight saving of bearing case 232.
The＜the four embodiment 〉
Aforementioned the first embodiment and aforementioned the 3rd embodiment's extension is disposed at an axial side, but the 4th embodiment as shown in Figure 5, relatively rotates body 344 and is disposed at axial inboard and the outside.Therefore, the first sealing component 346 is disposed at the axial both sides of rotor 344.Therefore, except the foreign steamer 340 of ball bearing 333, interior structure of taking turns the 342 and first sealing component 346, be the structure same with the first embodiment.Foreign steamer 340 has relatively center line C3 by rotor 344 centers a pair of the first seal holder part 340a with the first seal holder part 40a same structure the first embodiment that dispose axisymmetrically.Interiorly take turns 342 and have the relative center line C3 a pair of extension 342b with extension 42b same structure the first embodiment that dispose axisymmetrically.Therefore, interiorly take turns 342 and have a pair of the first sealing contacting part 342a that relative center line C3 disposes axisymmetrically and the first sealing contacting part 42a same structure the first embodiment.So, the 4th embodiment clips rotor 344 a pair of the first sealing contacting part 342a and the first sealing component 346 that body 344 is disposed at radially inner side that relatively rotate is set.Thereby the slip resistance that produces because of friction further reduces, even sealed the both sides of ball bearing 333, still can further suppress the reduction of rotation efficiency.
＜other embodiments 〉
More than explain with regard to 4 embodiments of the present utility model, but the utility model is not to be defined in above-described embodiment, can do various changes within not breaking away from the scope that designs main idea, for example:
(a) aforementioned 4 kinds of embodiments' rotary bearing is the illustration deep groove ball bearing, but the utility model is not limited to this.Be suitable for the utility model such as other ball bearings such as also can using angular contact ball bearing.In addition, also can use as the applicable the utility model of the ball bearing of rotary bearing.
(b) previous embodiment illustrates the utility model as an example of the ball bearing 33 that is installed in crank assembly example, but the utility model is not limited to this.For example also can be to the applicable the utility model of the rotary bearing of the front hub that is installed in bicycle, rear-wheel hub, electric wheel hub (motor hub), built-in gear shifting hub.
Above for only being the schematic part embodiment of the utility model; be not to limit scope of the present utility model; any those skilled in the art; the equivalent variations of having done under the prerequisite that does not break away from design of the present utility model and principle and modification all should be included within this patent protection domain.
Claims (6)
1. a rotary bearing that is used for bicycle is characterized in that, comprising:
Foreign steamer, it has seal holder part;
The interior wheel, it has the sealing contacting part;
A plurality of rotors, it is disposed at this foreign steamer and is somebody's turn to do between the interior wheel; And
Sealing component, it is installed in the sealing fixing part of this foreign steamer, and slides on the sealing contacting part of taking turns in this;
The sealing contacting part of wheel is formed at the radially inner side of this rotor in being somebody's turn to do.
2. the rotary bearing for bicycle according to claim 1 is characterized in that, wheel has the extension that stretches out in this foreign steamer at width direction in this, and the sealing contacting part is formed at this extension.
3. the rotary bearing for bicycle according to claim 2 is characterized in that, this extension and sealing member relatively this rotor are disposed at the axial outside.
4. the rotary bearing for bicycle according to claim 2 is characterized in that, this extension and sealing member relatively this rotor are disposed at axial inboard.
5. the rotary bearing for bicycle according to claim 2 is characterized in that, this extension and sealing member relatively this rotor are disposed at axial inboard and the outside.
6. according to claim 1 to 5 each described rotary bearings for bicycle, it is characterized in that the sealing contacting part is made through abrasive machining.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220316863 CN202811822U (en) | 2012-06-29 | 2012-06-29 | Rotary bearing for bicycle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220316863 CN202811822U (en) | 2012-06-29 | 2012-06-29 | Rotary bearing for bicycle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202811822U true CN202811822U (en) | 2013-03-20 |
Family
ID=47870699
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220316863 Expired - Fee Related CN202811822U (en) | 2012-06-29 | 2012-06-29 | Rotary bearing for bicycle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202811822U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111434936A (en) * | 2019-01-11 | 2020-07-21 | Ntn-Snr轴承股份有限公司 | Rolling bearing equipped with a sealing device |
-
2012
- 2012-06-29 CN CN 201220316863 patent/CN202811822U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111434936A (en) * | 2019-01-11 | 2020-07-21 | Ntn-Snr轴承股份有限公司 | Rolling bearing equipped with a sealing device |
| CN111434936B (en) * | 2019-01-11 | 2023-10-10 | Ntn-Snr轴承股份有限公司 | Rolling bearing equipped with sealing means |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130320 Termination date: 20200629 |
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| CF01 | Termination of patent right due to non-payment of annual fee |