CN203023278U - Excavator travel gearbox bearing - Google Patents
Excavator travel gearbox bearing Download PDFInfo
- Publication number
- CN203023278U CN203023278U CN 201320028840 CN201320028840U CN203023278U CN 203023278 U CN203023278 U CN 203023278U CN 201320028840 CN201320028840 CN 201320028840 CN 201320028840 U CN201320028840 U CN 201320028840U CN 203023278 U CN203023278 U CN 203023278U
- Authority
- CN
- China
- Prior art keywords
- bearing
- retainer
- steel ball
- reduced
- excavator
- 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.)
- Expired - Lifetime
Links
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 18
- 239000010959 steel Substances 0.000 claims abstract description 18
- 239000004677 Nylon Substances 0.000 claims abstract description 4
- 229920001778 nylon Polymers 0.000 claims abstract description 4
- 239000000463 material Substances 0.000 abstract description 4
- 238000005096 rolling process Methods 0.000 abstract description 4
- 230000001050 lubricating effect Effects 0.000 abstract description 2
- 239000007787 solid Substances 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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- Rolling Contact Bearings (AREA)
Abstract
The utility model discloses an excavator travel gearbox bearing and belongs to bearings. The excavator travel gearbox bearing structurally comprises an outer ring, an inner ring and steel balls, wherein the steel balls are arranged between the outer ring and the inner ring and are supported through a retainer; the retainer consists of nylon solid isolating blocks; each steel ball is arranged between every two adjacent isolating blocks; and a contact angle a of the bearing is designed to be 45 degrees. Compared with the prior art, the excavator travel gearbox bearing has the characteristics that the occupied material of the bearing ring is reduced, the occupied space of the bearing is reduced, the oil storage space of the whole gearbox is increased, the lubricating degree of the rolling body and the bearing raceway is improved, the friction coefficient of the bearing steel ball and the retainer is reduced, the rated load of the bearing is increased, the radial load can be borne, and partial axial load can be borne, so that the excavator travel gearbox bearing has high popularization and application values.
Description
Technical field
The utility model relates to a kind of bearing, especially a kind of excavator walking gear axle box bearing.
Background technique
Excavator walking gear case as one of critical component on machine tool chief axis or electric main shaft, is mainly used in the High Rotation Speed occasion with high-speed angular contact ball bearing, and the precision prescribed life-span is long, and frictional heating is few, also will have higher rigidity simultaneously.But the steel ball of the present bearing that uses and the friction of retainer are large, and the load rating of bearing is little.At present, good solution is not also arranged.
The model utility content
Technical assignment of the present utility model is to provide a kind of excavator walking gear axle box bearing for above-mentioned deficiency of the prior art, this excavator walking gear axle box bearing have reduced bearing ring take material, reduced bearing the oil storage space that has taken up room, increased whole gear-box, improved rolling element and bearing race lubricity, reduced bearing steel ball and retainer friction factor, increased the load rating of bearing, both radial load can be born, the characteristics of the thrust load of part can be born again.
The technological scheme that its technical problem that solves the utility model adopts is: it comprises outer ring, inner ring and steel ball, be provided with steel ball between described outer ring and inner ring, and support by retainer, described retainer is that nylon entity spacing block forms, be provided with steel ball between described every two adjacent spacing blocks, the wrapping angle a of bearing is designed to 45 degree.
Bearing is of a size of 230*320*39.5mm.
Compared to the prior art excavator walking gear axle box bearing of the present utility model has following outstanding beneficial effect: reduced bearing ring take material, reduced bearing the oil storage space that has taken up room, increased whole gear-box, improved rolling element and bearing race lubricity, reduced bearing steel ball and retainer friction factor, increased the load rating of bearing; The characteristics such as the wrapping angle of bearing is designed to 45 degree, both can bear radial load, can bear again the thrust load of part, and is easy to use.
Description of drawings
Accompanying drawing 1 is that the master of excavator walking gear axle box bearing looks the sectional structure schematic diagram;
Description of reference numerals: 1, outer ring, 2, steel ball, 3, inner ring, 4, spacing block, 5, retainer.
Embodiment
Be described in detail below with reference to Figure of description 1 and 2 pairs of excavator walking gear axle box bearings of the present utility model of accompanying drawing.
excavator walking gear axle box bearing of the present utility model, its structure comprises outer ring 1, inner ring 3 and steel ball 2, be provided with steel ball 2 between described outer ring 1 and inner ring 3, and support by retainer 5, described retainer 5 is that nylon entity spacing block 4 forms, can reduce the friction factor of bearing steel ball 2 and retainer 5, increased simultaneously the dress nodule number amount of bearing, compare with unidimensional bearing, increased the load rating of bearing, be provided with steel ball 2 between described every two adjacent spacing blocks 4, the wrapping angle a of bearing is designed to 45 degree, namely can bear radial load, can bear again the thrust load of part.
Bearing is of a size of 230*320*39.5mm.Reduce the width of inner ring and outer ring, both reduced the material that takies of bearing ring, reduced again taking up room of bearing, thereby increased the oil storage space of whole gear-box, be conducive to again the effectively lubricating of rolling element and bearing race.
Except the described technical characteristics of specification, be the known technology of those skilled in the art.
Claims (2)
1. excavator walking gear axle box bearing, comprise outer ring, inner ring and steel ball, be provided with steel ball between described outer ring and inner ring, and support by retainer, it is characterized in that: described retainer is that nylon entity spacing block forms, be provided with steel ball between described every two adjacent spacing blocks, the wrapping angle a of bearing is designed to 45 degree.
2. excavator walking gear axle box bearing according to claim 1, it is characterized in that: bearing is of a size of 230*320*39.5mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320028840 CN203023278U (en) | 2013-01-18 | 2013-01-18 | Excavator travel gearbox bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320028840 CN203023278U (en) | 2013-01-18 | 2013-01-18 | Excavator travel gearbox bearing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203023278U true CN203023278U (en) | 2013-06-26 |
Family
ID=48647267
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320028840 Expired - Lifetime CN203023278U (en) | 2013-01-18 | 2013-01-18 | Excavator travel gearbox bearing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203023278U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103089805A (en) * | 2013-01-18 | 2013-05-08 | 山东博特轴承有限公司 | Walking gearbox bearing of excavator |
-
2013
- 2013-01-18 CN CN 201320028840 patent/CN203023278U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103089805A (en) * | 2013-01-18 | 2013-05-08 | 山东博特轴承有限公司 | Walking gearbox bearing of excavator |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130626 |
|
| CX01 | Expiry of patent term |