CN205350093U - Double -deck sealed bearing that pairs - Google Patents
Double -deck sealed bearing that pairs Download PDFInfo
- Publication number
- CN205350093U CN205350093U CN201521065837.0U CN201521065837U CN205350093U CN 205350093 U CN205350093 U CN 205350093U CN 201521065837 U CN201521065837 U CN 201521065837U CN 205350093 U CN205350093 U CN 205350093U
- Authority
- CN
- China
- Prior art keywords
- bearing
- seal ring
- seal circle
- inner race
- ring
- Prior art date
- 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.)
- Withdrawn - After Issue
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- Rolling Contact Bearings (AREA)
Abstract
The utility model relates to a bearing, the double -deck sealed bearing that pairs in high -speed electric base bearing and high speed machine tool base bearing field is applied to to specific saying so one kind, belongs to the bearing technology field. It includes bearing inner race, bearing inner race, bearing ball, ball cage, inside seal circle and external seal circle, is equipped with inside seal circle and external seal circle between bearing inner race and the bearing inner race, and the bearing inner race inboard is equipped with inside seal circle mounting groove, and inside seal circle mounting groove internal fixation inside seal circle leaves the clearance between inside seal circle and the bearing inner race, the bearing inner race outside is equipped with external seal circle mounting groove, and external seal circle mounting groove internal fixation external seal circle leaves the clearance between external seal circle and the bearing inner race, leave the clearance between inside seal circle and the external seal circle. The utility model discloses both solve the bearing seal problem, solved the temperature rise problem again, and avoided sealing washer high temperature to burn out, the sand grip of external seal circle produces the air current, with the lip limit combined action of C shape structure, can produce the effect of atmoseal.
Description
Technical field
This utility model relates to a kind of bearing, and a kind of high-speed electric main shaft that is applied to holds the double-layer seal pairing bearing with high-speed machine tool base bearing field specifically, belongs to technical field of bearings.
Background technology
At present, high-speed bearing reaches more than 1,000,000 for running up with Dn value, and such sealing structure run up is typically designed to contactless.If be designed to contact, sealing ring lip has with the external diameter of inner ring and contacts, and instantaneous high-temperature is up to several Baidu, and not only sealing ring can burn out, and connecting shaft holds and also can be burned.But when making contactless, the dust-proof and waterproof effect of bearing is poor again, the sealing problem of bearing is the common fault that machinery industry High Speed Field exists.
Summary of the invention
The purpose of this utility model is in that to overcome above-mentioned weak point, thus providing a kind of double-layer seal pairing bearing, both having solved bearing seal problem, and having solved again problem of temperature rise, it is to avoid sealing ring high temperature burns out.
According to the technical scheme that this utility model provides, double-layer seal pairing bearing includes bearing inner race, bearing outer ring, bearing ball, ball retainer, inner seal ring and exterior seal ring, bearing inner race outer surface is provided with interior raceway, bearing outer ring inner surface is provided with outer raceway, interior raceway and outer raceway connect the bearing ball raceway that formation is complete, it is provided with bearing ball in bearing ball raceway, bearing ball outer ring is provided with ball retainer, it is characterized in that: between bearing inner race and bearing outer ring, be provided with inner seal ring and exterior seal ring, inner seal ring mounting groove it is provided with inside bearing outer ring, fixing inner seal ring in inner seal ring mounting groove, gap is left between inner seal ring and bearing inner race；Being provided with exterior seal ring mounting groove outside bearing inner race, in exterior seal ring mounting groove, fixing exterior seal ring, leaves gap, leaves gap between inner seal ring and exterior seal ring between exterior seal ring and bearing outer ring；The lip of described exterior seal ring is C-shaped configuration, and exterior seal ring inner seal ring one side surface dorsad is provided with multiple raised line.
Further, the axial centre position of the center deviation off-axis bearing outer-ring of bearing ball, and the offside of the center deflection installation inner seal ring of bearing ball and exterior seal ring.
Further, the interstice coverage of the lip of bearing inner race and inner seal ring is 0.1 ~ 0.15, and the interstice coverage of the lip of bearing outer ring and exterior seal ring is 0.1 ~ 0.15.
Further, the gap between inner seal ring and ball retainer, exterior seal ring is >=0.8.
Further, multiple raised lines are uniformly distributed along exterior seal ring surface perimeter direction.
Compared with the prior art this utility model has the advantage that
This utility model simple in construction, compact, reasonable, contactless interior exterior seal ring had both solved bearing seal problem, solved again problem of temperature rise, it is to avoid sealing ring high temperature burns out；The raised line of exterior seal ring produces air-flow, with the lip combined effect of C-shaped configuration, it is possible to produce the effect of sealing gland.
Accompanying drawing explanation
Fig. 1 is this utility model front view.
Fig. 2 is exterior seal ring front view.
Description of reference numerals: 1-bearing inner race, 2-bearing outer ring, 3-bearing ball, 4-ball retainer, 5-inner seal ring, 6-exterior seal ring, 7-lip, 8-raised line.
Detailed description of the invention
This utility model will be further described in conjunction with the embodiment in accompanying drawing below:
As shown in Figure 1 and 2, this utility model mainly includes bearing inner race 1, bearing outer ring 2, bearing ball 3, ball retainer 4, inner seal ring 5 and exterior seal ring 6, bearing inner race 1 outer surface is provided with interior raceway, bearing outer ring 2 inner surface is provided with outer raceway, interior raceway and outer raceway connect the bearing ball raceway that formation is complete, being provided with bearing ball 3 in bearing ball raceway, bearing ball 3 outer ring is provided with ball retainer 4.
In order to ensure that inner seal ring 5 and exterior seal ring 6 have enough installing spaces, the axial centre position of the center deviation off-axis bearing outer-ring 2 of described bearing ball 3, and the offside of the center deflection installation inner seal ring 5 of bearing ball 3 and exterior seal ring 6.
Inner seal ring 5 and the exterior seal ring 6 of contactless connection it is provided with between bearing inner race 1 and bearing outer ring 2.Being provided with inner seal ring mounting groove inside bearing outer ring 2, in inner seal ring mounting groove, fixing inner seal ring 5, leaves gap between inner seal ring 5 and bearing inner race 1.Being provided with exterior seal ring mounting groove outside bearing inner race 1, in exterior seal ring mounting groove, fixing exterior seal ring 6, leaves gap, leaves gap between inner seal ring 5 and exterior seal ring 6 between exterior seal ring 6 and bearing outer ring 2.
The interstice coverage of the lip of described bearing inner race 1 and inner seal ring 5 is 0.1 ~ 0.15, and the interstice coverage of the lip 7 of bearing outer ring 2 and exterior seal ring 6 is 0.1 ~ 0.15.Gap is arranged within the scope of this so that bearing inner race 1 and inner seal ring 5 can reach good sealing effectiveness, and it is overheated to produce again, causes that sealing ring burns.
Gap between described inner seal ring 5 and ball retainer 4, exterior seal ring 6 is >=0.8, is beneficial to heat radiation in this interstice coverage.
The lip 7 of described exterior seal ring 6 is C-shaped configuration, and the lip 7 of C-shaped configuration can form high pressure with the gap location of bearing outer ring, reaches the effect of sealing gland.
Described exterior seal ring 6 inner seal ring 5 one side surface dorsad is provided with multiple raised line 8, and multiple raised lines 8 are uniformly distributed along exterior seal ring 6 surface perimeter direction.When high speed rotating, raised line 8 produces air-flow, with lip 7 combined effect of C-shaped configuration, the effect of generation sealing gland.
Double-deck non-contacting seal is applied to the field used in pairs at a high speed by this utility model, designs ingenious, rational in infrastructure, had both solved sealing problem, and had solved again problem of temperature rise, and had solved a sealing difficult problem for industry high speed bearing.
Claims (5)
1. a double-layer seal pairing bearing, including bearing inner race (1), bearing outer ring (2), bearing ball (3), ball retainer (4), inner seal ring (5) and exterior seal ring (6), bearing inner race (1) outer surface is provided with interior raceway, bearing outer ring (2) inner surface is provided with outer raceway, interior raceway and outer raceway connect the bearing ball raceway that formation is complete, bearing ball (3) it is provided with in bearing ball raceway, bearing ball (3) outer ring is provided with ball retainer (4), it is characterized in that: between bearing inner race (1) and bearing outer ring (2), be provided with inner seal ring (5) and exterior seal ring (6), bearing outer ring (2) inner side is provided with inner seal ring mounting groove, fixing inner seal ring (5) in inner seal ring mounting groove, gap is left between inner seal ring (5) and bearing inner race (1)；Bearing inner race (1) outside is provided with exterior seal ring mounting groove, and in exterior seal ring mounting groove, fixing exterior seal ring (6), leaves gap, leave gap between inner seal ring (5) and exterior seal ring (6) between exterior seal ring (6) and bearing outer ring (2)；The lip (7) of described exterior seal ring (6) is C-shaped configuration, and exterior seal ring (6) inner seal ring (5) side surface dorsad is provided with multiple raised line (8).
2. double-layer seal pairing bearing as claimed in claim 1, it is characterized in that: the axial centre position of center deviation off-axis bearing outer-ring (2) of described bearing ball (3), and the center deflection of bearing ball (3) installs the offside of inner seal ring (5) and exterior seal ring (6).
3. double-layer seal pairing bearing as claimed in claim 1, it is characterized in that: the interstice coverage of the lip of described bearing inner race (1) and inner seal ring (5) is 0.1 ~ 0.15, the interstice coverage of the lip (7) of bearing outer ring (2) and exterior seal ring (6) is 0.1 ~ 0.15.
4. double-layer seal pairing bearing as claimed in claim 1, is characterized in that: the gap between described inner seal ring (5) and ball retainer (4), exterior seal ring (6) is >=0.8.
5. double-layer seal pairing bearing as claimed in claim 1, is characterized in that: the plurality of raised line (8) is uniformly distributed along exterior seal ring (6) surface perimeter direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521065837.0U CN205350093U (en) | 2015-12-18 | 2015-12-18 | Double -deck sealed bearing that pairs |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521065837.0U CN205350093U (en) | 2015-12-18 | 2015-12-18 | Double -deck sealed bearing that pairs |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205350093U true CN205350093U (en) | 2016-06-29 |
Family
ID=56168630
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521065837.0U Withdrawn - After Issue CN205350093U (en) | 2015-12-18 | 2015-12-18 | Double -deck sealed bearing that pairs |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205350093U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105402255A (en) * | 2015-12-18 | 2016-03-16 | 无锡市第二轴承有限公司 | Double-layer sealing pairing bearing |
-
2015
- 2015-12-18 CN CN201521065837.0U patent/CN205350093U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105402255A (en) * | 2015-12-18 | 2016-03-16 | 无锡市第二轴承有限公司 | Double-layer sealing pairing bearing |
| CN105402255B (en) * | 2015-12-18 | 2017-10-10 | 无锡市第二轴承有限公司 | Double-layer seal matches bearing |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20160629 Effective date of abandoning: 20171010 |