CN204025366U - There is the roller bearing units of dustproof guard ring - Google Patents
There is the roller bearing units of dustproof guard ring Download PDFInfo
- Publication number
- CN204025366U CN204025366U CN201420335340.5U CN201420335340U CN204025366U CN 204025366 U CN204025366 U CN 204025366U CN 201420335340 U CN201420335340 U CN 201420335340U CN 204025366 U CN204025366 U CN 204025366U
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- China
- Prior art keywords
- ring
- bearing
- guard ring
- outer ring
- bearing outer
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model provides a kind of roller bearing units with dustproof guard ring, comprise bearing inner race, bearing outer ring and the rolling element arranging between the two, between the bearing inner race of rolling element both sides and bearing outer ring, be provided with seal ring, the two ends arranged outside of described bearing outer ring has dish type guard ring, guard ring is fastened on described bearing inner race and the little close bearing outer ring end face with gap of the card of guard ring, the card outer rim of described guard ring, near the end face outer rim of bearing outer ring, is provided with annular groove on described guard ring and the opposed card inner side surface of bearing outer ring.Between the utility model guard ring and bearing support and bearing outer ring end face, form perpendicular clearance channel, form non-contact type labyrinth sealing, good sealing effect, friction torque are little, and can store a small amount of dust, reduce the stop chance of dust in bearing, there is good dustproof effect, bearing long service life.
Description
Technical field
The utility model relates to technical field of bearings, relates in particular to a kind of roller bearing units with dustproof guard ring.
Background technique
The Environmental Conditions of roller bearing units is more severe, is generally used for the agricultural machinery such as mining machinery, reaper, threshing machine.Roller bearing units is the one of deep groove ball bearing, there is bearing inner race, bearing outer ring, and rolling element between bearing inner race and bearing outer ring, the external diameter surface of bearing outer ring is sphere, this sphere can swing relative to the endoporus of bearing support and is realized self-aligning, the axis centering that solves axle and bearing saddle bore is poor, or axial length and the generation centering problem such as amount of deflection is large.Because the Environmental Conditions condition of roller bearing units is harsher, for improving dirt exclusion capabilities, be generally double-layer seal, also to install a back-up ring additional in the outside of conventional seals circle, but existing back-up ring is all the bore ends that is positioned at bearing inner race, between the endoporus of back-up ring and bearing inner race, form clearance seal, as Chinese utility model patent 201382079Y, 203214652U disclose this kind of back-up ring, but dust easily enters from the gap between back-up ring and bearing inner race endoporus, affect bearing working life.
Model utility content
For the above-mentioned problems in the prior art, technical problem to be solved in the utility model is to provide a kind of roller bearing units with dustproof guard ring, guard ring has good dustproof effect, can effectively stop that extraneous dust enters bearing inside, bearing long service life.
The technical solution of the utility model is as follows: a kind of roller bearing units with dustproof guard ring, comprise bearing inner race, bearing outer ring and the rolling element arranging between the two, between the bearing inner race of rolling element both sides and bearing outer ring, be provided with seal ring, the two ends arranged outside of described bearing outer ring has dish type guard ring, guard ring is fastened on described bearing inner race and the little close bearing outer ring end face with gap of the card of guard ring, the card outer rim of described guard ring is near the end face outer rim of bearing outer ring, on described guard ring and the opposed card inner side surface of bearing outer ring, be provided with annular groove.
Further, described seal ring has steel skeleton, steel skeleton is the toroidal ring structure with circular cone and both sides end face, steel skeleton is fastened on bearing outer ring by the assembly department at inner side end edge, on the circular cone of steel skeleton and outside end face, be bonded with seal, seal has two sealing lips that contact with bearing inner race at least.
Further, described assembly department is the bending flange forming at steel skeleton inner side end outward edge, and seal ring presses fit into after described bearing outer ring, and bending flange is deformed into crimping and is stuck in the annular groove of bearing outer ring.
Further, the gap between the card of described guard ring and bearing outer ring end face is 0.3-0.6mm.
Further, described guard ring has collar, and collar is the ring vertical with described card, and described collar and bearing inner race are fixed.
Further, the annular groove drawing on described guard ring, guard ring surface has nickeling layer.
The utility model is arranged on traditional guard ring in the outside of bearing outer ring, and the external diameter of guard ring is expanded, guard ring external diameter is only slightly less than bearing outer ring external diameter, substantially the both sides end face of bearing is blocked, dust or mud are difficult for entering, and between guard ring and bearing face, only have little close with gap, form slit seal, between guard ring external diameter and bearing support, and clearance channel between guard ring card and bearing outer ring end face, form labyrinth sealing, dust is difficult for entering by two perpendicular clearance channel, effectively preventing dust mud, and the annular groove that guard ring card inner side surface is provided with, can play the effect that stores dust, in the time that guard ring rotates in bearing outer ring both sides along with bearing inner race, can outwards roll and throw away entering a small amount of dust between guard ring and seal ring, traditional guard ring is owing to being positioned at bearing outer ring bore ends, the dust entering cannot be overflowed by the gap between guard ring and bearing outer ring endoporus, and the utility model guard ring can throw away a small amount of dust entering and is placed in annular groove, annular groove can be used as the space of storage dust, dust is unlikely and rests on the inner both sides of bearing, reduce the chance that dust enters seal ring.
The beneficial effects of the utility model are: between guard ring and bearing support and bearing outer ring end face, form perpendicular clearance channel, form non-contact type labyrinth sealing, good sealing effect, friction torque are little, and can store a small amount of dust, reduce the stop chance of dust in bearing, there is good dustproof effect, bearing long service life.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the local enlarged diagram of Fig. 1.
Embodiment
Below with reference to accompanying drawing, preferred embodiment of the present utility model is elaborated.
As depicted in figs. 1 and 2, a kind of roller bearing units with dustproof guard ring, comprise bearing inner race 1 and bearing outer ring 2, between described bearing inner race 1 and bearing outer ring 2, be provided with rolling element 3, rolling element 3 is spherical, the both sides end face of bearing inner race 1 stretches out in bearing outer ring 2, and the external diameter surface of described bearing outer ring 2 is sphere, and this sphere matches with the inner ball surface of bearing support.
Between the bearing inner race 1 of rolling element 3 both sides and bearing outer ring 2, be respectively equipped with a seal ring 5, seal ring 5 is provided with steel skeleton 51, steel skeleton 51 is for having the toroidal ring structure of bending, and toroidal ring structure has inner side end, outside end face and connects the circular cone 511 of end face described in two.Steel skeleton 51 is fastened on bearing outer ring 2 by the assembly department 512 at inner side end edge, described assembly department 512 is the bending flange that form at steel skeleton 51 inner side end outward edges, seal ring 5 presses fit into after described bearing outer ring 2, bending flange is deformed into crimping and is stuck in the annular groove of bearing outer ring 2, thereby seal ring 5 is fastened on bearing outer ring 2.On the circular cone 511 of steel skeleton 51 and outside end face, be bonded with seal 52, seal 52 has two sealing lips that contact with bearing inner race 1 at least, preferably three sealing lips, the lip of three sealing lips and bearing inner race 1 motive sealing in the present embodiment.
The two ends arranged outside of described bearing outer ring 2 has dish type guard ring 6, and dish type guard ring 6 is stamping part, and guard ring 6 surfaces have nickeling layer, play rust inhibition.Guard ring 6 is fastened on described bearing inner race 1.Guard ring 6 comprises collar and card 61, and collar is the ring vertical with described card 61, collar and bearing inner race 1 interference fit and fix.Card 61 outer rims of guard ring 6 are near the end face outer rim of bearing outer ring 2, and guard ring 6 is arranged on the outside of bearing outer ring 2, and guard ring 6 external diameters are only slightly less than bearing outer ring 2 external diameters, substantially the both sides end face of bearing blocked, and dust or mud are difficult for entering.The card 61 of guard ring 6 is little with gap near bearing outer ring 2 end faces, in the present embodiment, gap between card 61 and bearing outer ring 2 end faces is 0.4mm left and right, between guard ring 6 and bearing face, only have little close with gap, form slit seal, between guard ring 6 external diameters and bearing support, and clearance channel between guard ring 6 cards 61 and bearing outer ring 2 end faces, form labyrinth sealing, dust is difficult for entering by two perpendicular clearance channel, effectively preventing dust mud.
On described guard ring 6 and opposed card 61 inner side surfaces of bearing outer ring 2, be provided with a ring annular groove 611, annular groove 611 is drawing, annular groove 611 can play the effect that stores dust, in the time that guard ring 6 rotates in bearing outer ring 2 both sides along with bearing inner race 1, can outwards roll and throw away entering a small amount of dust between guard ring 6 and seal ring 5, traditional guard ring 6 is owing to being positioned at bearing outer ring 2 bore ends, the dust entering cannot be overflowed by the gap between guard ring 6 and bearing outer ring 2 endoporus, and the utility model guard ring 6 can throw away a small amount of dust entering, the dust that can not run out of by little gap can be placed in annular groove 611, annular groove 611 can be used as the space of storage dust, dust is unlikely and rests on the inner both sides of bearing, reduce the chance that dust enters seal ring 5.
As shown in Figure 1, the two ends of bearing inner race 1 stretch out in bearing outer ring 2, in the section of stretching out of bearing inner race 1, are provided with top wire hole, and jackscrew 4 is housed in top wire hole, and in bearing inner race 1, after installation shaft, jackscrew 4 withstands on axle, can play fixation.
Between guard ring 6 of the present utility model and bearing support and bearing outer ring 2 end faces, form perpendicular clearance channel, form non-contact type labyrinth sealing, good sealing effect, friction torque are little, and can store a small amount of dust, reduce the stop chance of dust in bearing, there is good dustproof effect, bearing long service life.
These are only preferably embodiment of the utility model; but protection domain of the present utility model is not limited to this; all within spirit of the present utility model and principle, any amendment of doing, be equal to replacement, improvement etc., within all should being included in protection domain of the present utility model.
Claims (6)
1. one kind has the roller bearing units of dustproof guard ring, comprise bearing inner race, bearing outer ring and the rolling element arranging between the two, between the bearing inner race of rolling element both sides and bearing outer ring, be provided with seal ring, it is characterized in that: the two ends arranged outside of described bearing outer ring has dish type guard ring, guard ring is fastened on described bearing inner race and the little close bearing outer ring end face with gap of the card of guard ring, the card outer rim of described guard ring, near the end face outer rim of bearing outer ring, is provided with annular groove on described guard ring and the opposed card inner side surface of bearing outer ring.
2. the roller bearing units with dustproof guard ring according to claim 1, it is characterized in that: described seal ring has steel skeleton, steel skeleton is the toroidal ring structure with circular cone and both sides end face, steel skeleton is fastened on bearing outer ring by the assembly department at inner side end edge, on the circular cone of steel skeleton and outside end face, be bonded with seal, seal has two sealing lips that contact with bearing inner race at least.
3. the roller bearing units with dustproof guard ring according to claim 2, it is characterized in that: described assembly department is the bending flange forming at steel skeleton inner side end outward edge, seal ring presses fit into after described bearing outer ring, and bending flange is deformed into crimping and is stuck in the annular groove of bearing outer ring.
4. the roller bearing units with dustproof guard ring according to claim 1, is characterized in that: the gap between the card of described guard ring and bearing outer ring end face is 0.3-0.6mm.
5. the roller bearing units with dustproof guard ring according to claim 1, is characterized in that: described guard ring has collar, collar is the ring vertical with described card, and described collar and bearing inner race are fixed.
6. according to the roller bearing units with dustproof guard ring described in claim 1 to 5 any one, it is characterized in that: the annular groove drawing on described guard ring, guard ring surface has nickeling layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420335340.5U CN204025366U (en) | 2014-06-23 | 2014-06-23 | There is the roller bearing units of dustproof guard ring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420335340.5U CN204025366U (en) | 2014-06-23 | 2014-06-23 | There is the roller bearing units of dustproof guard ring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204025366U true CN204025366U (en) | 2014-12-17 |
Family
ID=52065236
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420335340.5U Expired - Fee Related CN204025366U (en) | 2014-06-23 | 2014-06-23 | There is the roller bearing units of dustproof guard ring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204025366U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104847796A (en) * | 2015-06-05 | 2015-08-19 | 安徽利达汽车轴承制造有限公司 | Bearing sealing ring |
| CN106704382A (en) * | 2017-03-19 | 2017-05-24 | 山东哈临集团有限公司 | Combined bearing sealing ring and using method |
| CN107255116A (en) * | 2017-06-07 | 2017-10-17 | 赵红平 | A kind of Special bearing for carrier rollers of high sealing performance |
-
2014
- 2014-06-23 CN CN201420335340.5U patent/CN204025366U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104847796A (en) * | 2015-06-05 | 2015-08-19 | 安徽利达汽车轴承制造有限公司 | Bearing sealing ring |
| CN106704382A (en) * | 2017-03-19 | 2017-05-24 | 山东哈临集团有限公司 | Combined bearing sealing ring and using method |
| CN107255116A (en) * | 2017-06-07 | 2017-10-17 | 赵红平 | A kind of Special bearing for carrier rollers of high sealing performance |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Outer spherical surface ball bearing with dustproof protection rings Effective date of registration: 20160630 Granted publication date: 20141217 Pledgee: Bank of China, Limited by Share Ltd, Nanan branch Pledgor: FK Bearing Group Co.,Ltd. Registration number: 2016350000055 |
|
| PLDC | Enforcement, change and cancellation of contracts on pledge of patent right or utility model | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141217 Termination date: 20180623 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |