CN204828284U - Long -life bearing - Google Patents
Long -life bearing Download PDFInfo
- Publication number
- CN204828284U CN204828284U CN201520617743.3U CN201520617743U CN204828284U CN 204828284 U CN204828284 U CN 204828284U CN 201520617743 U CN201520617743 U CN 201520617743U CN 204828284 U CN204828284 U CN 204828284U
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- CN
- China
- Prior art keywords
- roller
- cylindrical roller
- raceway
- inner ring
- inner circle
- 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.)
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- Rolling Contact Bearings (AREA)
Abstract
The utility model relates to a long -life bearing, outer lane, inner circle, cylindrical roller and holder, the inner circle sets up in the outer lane, its characterized in that cylindrical roller's raceway is the level and smooth logarithmic curve type of evagination formula symmetry, and cylindrical roller's raceway both sides are the arc promptly, for flat shape in the middle of cylindrical roller's the raceway, be equipped with a roller recess at the outer lane internal surface, the recess rolling surface in the roller recess is established to the level and smooth logarithmic curve type of evagination formula symmetry, and the inner circle outside rolling surface of inner circle is established to the level and smooth logarithmic curve type of evagination formula symmetry, the holder sets up between the outer lane and inner circle in the roller recess outside, be provided with a plurality of cylindrical roller in the holder, cylindrical roller is in between the roller recess and inner circle of outer lane. Utility model has the advantage that can improve bearing life.
Description
Technical field
The utility model relates to a kind of bearing, particularly relates to a kind of long-life bearing.
Background technique
Current bearing comprises outer ring, inner ring, cylindrical roller and retainer; Inner ring is arranged in outer ring, and retainer is arranged between outer ring and inner ring; Some cylindrical rollers are provided with in retainer; Raceway due to cylindrical roller is flat shape, inside the outer ring in corresponding outer ring rolling surface and inner ring inner ring outside rolling surface be also flat shape; This bearing in use, outside the outer ring of outer ring, the intermediate portion of rolling surface is stressed larger, discontinuity on the raceway of cylindrical roller, the neutral position of the raceway of cylindrical roller is stressed maximum, make the neutral position of the raceway of cylindrical roller and corresponding outer ring with wear and tear between inner ring larger, use the neutral position of rolling surface outside the inner ring of rolling surface and inner ring inside the outer ring of the neutral position of the raceway of cylindrical roller after a period of time, outer ring easily to produce depression, thus affect the working life of bearing.
Summary of the invention
For above-mentioned shortcoming, the purpose of this utility model is to provide a kind of long-life bearing that can improve bearing working life.
Technology contents of the present utility model is: a kind of long-life bearing, outer ring, inner ring, cylindrical roller and retainer; Inner ring is arranged in outer ring; It is characterized in that the raceway of cylindrical roller is the symmetrical level and smooth logarithmic curve type of outer convex type, namely the raceway both sides of cylindrical roller are arc, are flat shape in the middle of the raceway of cylindrical roller; Be provided with a roller groove at inner surface, the groove rolling surface in roller groove is set to the symmetrical level and smooth logarithmic curve type of outer convex type, and outside the inner ring of inner ring, rolling surface is set to the symmetrical level and smooth logarithmic curve type of outer convex type; Retainer is arranged between outer ring outside roller groove and inner ring; In retainer, be provided with some cylindrical rollers, cylindrical roller is between the roller groove of outer ring and inner ring.
The utility model is compared with prior art advantageously: due to the raceway by cylindrical roller, outside groove rolling surface in the roller groove of outer ring and the inner ring of inner ring, rolling surface is set to the symmetrical level and smooth logarithmic curve type of outer convex type, bearing is when using pressurized, the raceway of cylindrical roller, outside groove rolling surface in the roller groove of outer ring and the inner ring of inner ring, rolling surface can after stressed extrusion produces micro-strain, make the stressed more even of the raceway of cylindrical roller, thus make the raceway of cylindrical roller and corresponding outer ring with wear and tear between inner ring more even, thus improve the working life of bearing.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Embodiment
As shown in Figure 1, a kind of long-life bearing, outer ring 1, inner ring 2, cylindrical roller 3 and retainer 4; Inner ring 2 is arranged in outer ring 1; It is characterized in that the raceway 3.1 of cylindrical roller 3 is for the symmetrical level and smooth logarithmic curve type of outer convex type, namely raceway 3.1 both sides of cylindrical roller 3 are arc, are flat shape in the middle of the raceway 3.1 of cylindrical roller 3; Be provided with a roller groove 1.1 at outer ring 1 internal surface, the groove rolling surface 1.1.1 in roller groove 1.1 is set to the symmetrical level and smooth logarithmic curve type of outer convex type, and outside the inner ring of inner ring 2, rolling surface 2.1 is set to the symmetrical level and smooth logarithmic curve type of outer convex type; Retainer 4 is arranged between outer ring 1 outside roller groove 1.1 and inner ring 2; In retainer 4, be provided with some cylindrical rollers 3, cylindrical roller 3 is between the roller groove 1.1 of outer ring 1 and inner ring 2.
Claims (1)
1. a long-life bearing, outer ring, inner ring, cylindrical roller and retainer; Inner ring is arranged in outer ring; It is characterized in that the raceway of cylindrical roller is the symmetrical level and smooth logarithmic curve type of outer convex type, namely the raceway both sides of cylindrical roller are arc, are flat shape in the middle of the raceway of cylindrical roller; Be provided with a roller groove at inner surface, the groove rolling surface in roller groove is set to the symmetrical level and smooth logarithmic curve type of outer convex type, and outside the inner ring of inner ring, rolling surface is set to the symmetrical level and smooth logarithmic curve type of outer convex type; Retainer is arranged between outer ring outside roller groove and inner ring; In retainer, be provided with some cylindrical rollers, cylindrical roller is between the roller groove of outer ring and inner ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520617743.3U CN204828284U (en) | 2015-08-17 | 2015-08-17 | Long -life bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520617743.3U CN204828284U (en) | 2015-08-17 | 2015-08-17 | Long -life bearing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204828284U true CN204828284U (en) | 2015-12-02 |
Family
ID=54685889
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520617743.3U Active CN204828284U (en) | 2015-08-17 | 2015-08-17 | Long -life bearing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204828284U (en) |
-
2015
- 2015-08-17 CN CN201520617743.3U patent/CN204828284U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |