CN217055969U - Machined double-row ball self-aligning seated bearing - Google Patents
Machined double-row ball self-aligning seated bearing Download PDFInfo
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- CN217055969U CN217055969U CN202121303628.0U CN202121303628U CN217055969U CN 217055969 U CN217055969 U CN 217055969U CN 202121303628 U CN202121303628 U CN 202121303628U CN 217055969 U CN217055969 U CN 217055969U
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Abstract
A machined double-row ball self-aligning belt seat bearing comprises a bearing seat body and a bearing, wherein a bearing mounting hole is formed in the bearing seat body, and the inner surface of the bearing mounting hole is an inner cylindrical surface; the bearing comprises an inner ring provided with a double-row annular channel, an outer ring provided with an inner spherical raceway and two groups of ball assemblies arranged between the inner ring and the outer ring; the outer surface of the outer ring is a cylindrical surface, the cylindrical surface of the outer ring is in interference fit with the inner cylindrical surface of the bearing mounting hole, and the bearing is symmetrical along the axial direction. The double-row ball self-aligning bearing used in the scheme has high rotating speed, good rotating precision, small rotating friction, low heat emission and automatic alignment; the machined bearing seat body has small size, saves space, has better mechanical performance, has more selectable specifications of installation position and center height, is convenient to design and use, and can be customized; the mode of fixing the bearing by the retainer ring is adopted, so that the safety is good, and the bearing is convenient to maintain and replace at a later stage. Overall structure is simple, and the practicality is strong, and follow-up installation is maintained more simple and conveniently.
Description
The technical field is as follows:
the utility model relates to a technical field of aligning rolling bearing, in particular to machine tooling biserial ball aligning rolling bearing.
The background art comprises the following steps:
the existing aligning bearing with a seat is generally an outer spherical surface casting bearing with a seat. Because the bearing seat body is a casting part, the bearing seat body has the advantages of large volume, low machining precision, less selectable specifications of installation positions and center height, inapplicable arrangement of an installed spherical bearing, high rotation speed, high friction, serious heating and other conditions during rotation, poor compactness, easy surface crack generation and other phenomena. So the bearing seat body which is worn due to heating or poor lubrication needs to be frequently overhauled, lubricated in time and replaced. These problems cause complicated design, low stability, complicated and troublesome use and maintenance, waste of great manpower and material resources, obviously increased hidden cost and great time efficiency.
The utility model has the following contents:
the utility model aims to solve the problems in the prior art and provide a machined double-row ball self-aligning belt seat bearing, which has high rotating speed, good rotating precision, small rotating friction and low heating; the machining bearing seat body is small in size, machining precision can be higher, installation positions and center high specifications can be selected more, and the requirement of occasions where bearings and shafts are difficult to align can be met.
In order to achieve the purpose, the invention provides a machined double-row ball self-aligning belt seat bearing, which comprises a bearing seat body and a bearing, wherein a bearing mounting hole is formed in the bearing seat body, and the inner surface of the bearing mounting hole is an inner cylindrical surface; the bearing comprises an inner ring provided with a double-row annular channel, an outer ring provided with an inner spherical raceway and two groups of ball assemblies arranged between the inner ring and the outer ring; the outer surface of the outer ring is a cylindrical surface, the cylindrical surface of the outer ring is in interference fit with the inner cylindrical surface of the bearing mounting hole, and the bearing is symmetrical along the axial direction.
Preferably, the axis of the bearing mounting hole has a parallelism tolerance value of 0.01 mm with respect to the bottom surface of the bearing housing body, and a surface roughness (Ra) value of 1.6 μm.
Preferably, a retainer ring groove is formed in the bearing seat body, and a retainer ring for fixing the bearing is arranged in the retainer ring groove.
Preferably, a through hole for the rotating shaft to penetrate is formed in the center of the bearing mounting hole in a penetrating mode, and the diameter of the through hole is smaller than that of the bearing mounting hole.
Preferably, the bearing seat body is machined.
Preferably, the bearing is a double-row ball self-aligning bearing.
Preferably, the bearing precision is a self-aligning ball bearing: GB/T307.16 level.
Preferably, the retainer ring is a retainer ring for a reverse hole so as to avoid interfering with the rotation of the inner ring and the outer ring of the bearing and the installation of other parts.
Preferably, two ends of the bottom of the bearing seat body are respectively provided with a mounting hole.
Preferably, the edge parts of the two ends of the top of the bearing seat body are subjected to 45-degree chamfering treatment.
As described above, as an improvement of aligning rolling bearing, the utility model discloses a machining biserial ball aligning rolling bearing adopts biserial ball aligning bearing and the combination of machine with the bearing frame body, uses retaining ring fixing bearing for the reverse hole, uses biserial ball aligning bearing to have the aligning effect, and is very practical to the occasion that bearing and axle are difficult to the centering. The used double-row ball self-aligning bearing has high rotating speed, good rotating precision, small rotating friction and low heat emission; the self-aligning function is realized, and errors caused by non-concentricity and shaft deflection can be compensated within a certain angle; the used machined bearing seat has the advantages that the size of the body is small, the machining precision is higher, the compactness, the surface roughness and the mechanical property are better than those of a common casting part, the specifications of the installation position and the center height are more selectable, the design and the use are convenient, and the machining bearing seat can be used for drawing and customizing; the mode that adopts the retaining ring fixed bearing has improved the security, makes things convenient for the later maintenance to change the bearing more. Overall structure is simple, and the practicality is strong, and follow-up installation is maintained more simple and conveniently.
Description of the drawings:
in order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
FIG. 1 is a schematic view of a machined double-row ball self-aligning seated bearing according to the present invention;
FIG. 2 is a schematic top view of the machined double-row ball self-aligning seated bearing shown in FIG. 1;
FIG. 3 is a schematic diagram of a cross-sectional structure A-A of the machined double-row ball self-aligning seated bearing shown in FIG. 1.
The reference numerals include:
1-bearing seat body 2-bearing 3-bearing mounting hole 4-inner ring 5-outer ring 6-ball assembly 7-retainer groove 8-retainer ring 9-through hole 10-mounting hole
The realization, the functional characteristics and the advantages of the utility model are further explained by combining the embodiment and referring to the attached drawings.
The specific implementation mode is as follows:
the technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
The utility model provides a machine tooling biserial ball aligning rolling seat bearing.
In this embodiment, the bearing seat comprises a bearing seat body 1 and a bearing 2, wherein the bearing seat body 1 is provided with a bearing mounting hole 3, and the inner surface of the bearing mounting hole 3 is an inner cylindrical surface; the bearing 2 comprises an inner ring 4 provided with a double-row annular channel, an outer ring 5 provided with an inner spherical raceway and two groups of ball assemblies 6 arranged between the inner ring and the outer ring; the outer surface of the outer ring 5 is a cylindrical surface, the cylindrical surface of the outer ring 5 is in interference fit with the inner cylindrical surface 4 of the bearing mounting hole, and the bearing 2 is symmetrical along the axial direction.
Specifically, in this embodiment, the parallelism tolerance value of the axis of the bearing mounting hole 3 with respect to the bottom surface of the bearing seat body 1 is 0.01 mm, and the roughness value of the inner surface of the bearing mounting hole 3 is 1.6 μm. The bearing seat body of machining can accomplish littleer geometric tolerance, and littleer roughness helps improving the interference fit quality, guarantees firm reliable of joint strength, reduces wearing and tearing, extension part life.
Furthermore, a retainer ring groove 7 is formed in the bearing seat body 1, and a retainer ring 8 used for fixing the bearing 2 is arranged in the retainer ring groove 7.
Furthermore, a through hole 9 for the rotating shaft to penetrate is formed in the center of the bearing mounting hole 3 in a penetrating mode, and the diameter of the through hole 9 is smaller than that of the bearing mounting hole 3.
Further, the bearing seat body 1 is machined. The machined bearing seat body can have smaller volume, flexible installation position and center height, and can be customized.
Further, the bearing 2 is a double-row ball self-aligning bearing. The double-row ball self-aligning bearing mainly bears radial load, has double rows of balls, has an outer ring raceway which is in an inner spherical surface shape, has automatic self-aligning performance, can automatically compensate coaxiality errors generated by deflection and shell deformation, and is suitable for various conditions that a rotating shaft and a bearing seat are not aligned.
Further, the precision of the bearing 2 is a self-aligning ball bearing: GB/T307.16 level.
Further, the retainer ring 7 is a retainer ring for a reverse hole to avoid interfering with the rotation of the inner ring and the outer ring of the bearing and the installation of other parts. The retainer ring serves to fix the axial movement of the bearing, and the outer diameter of such retainer ring is slightly larger than the diameter of the retainer ring groove. During installation, the clamp spring clamp is required to be used, the clamp mouth is inserted into the clamp hole of the retainer ring, and the retainer ring is clamped tightly and can be placed into the pre-processed retainer ring groove.
Furthermore, two ends of the bottom of the bearing seat body 1 are respectively provided with a mounting hole 10.
Further, the edge parts at two ends of the top of the bearing seat body 1 are subjected to 45-degree chamfering treatment. The chamfer angle removes the burr, makes it pleasing to the eye, makes the product not sharp, can not cut the user.
The utility model discloses an equipment method of machine tooling double-row ball self-aligning tape seat bearing does:
firstly, cleaning each part before installation, such as removing sundries and the like in an installation hole; smoothly pressing the bearing 2 into the bearing mounting hole 3 of the bearing seat body 1 by using a press machine, and then installing the retainer ring 8 into the retainer ring groove 7 by using snap spring tongs, so that the bearing seat body 1 is not scratched; require bearing 2 to rotate smoothly after the installation is accomplished, retaining ring 8 does not influence the inner circle 4 of bearing 2 and ball subassembly 6's incline, in order to obtain the utility model discloses a machine tooling biserial ball aligning seated bearing, this seated bearing have satisfied the demand that some bearings and axle are difficult to the occasion of centering.
It is worth mentioning that the above description is right the shape of the bearing seat body 1 and the description of the specific fixing mode of the bearing 2 are only for the purpose of clearer explanation of the present invention, and not for the purpose of limiting the present invention, the bearing seat body 1 of other shapes, such as L-shaped or flange-shaped, etc., and other fixing modes of the bearing 2 are also applicable to the present invention.
As an improvement of aligning rolling bearing, the utility model discloses a machine tooling biserial ball aligning rolling bearing adopts biserial ball aligning bearing and the combination of machine with the bearing frame body, uses retaining ring fixing bearing for the reversal hole, uses biserial ball aligning bearing to have the aligning effect, and is very practical to the occasion that bearing and axle are difficult to the centering. The used double-row ball self-aligning bearing has high rotating speed, good rotating precision, small rotating friction and low heat emission; the self-aligning device has the advantages that the self-aligning device can compensate errors caused by non-concentricity and shaft deflection within a certain angle; the used machined bearing seat has the advantages that the size of the body is small, the machining precision is higher, the compactness, the surface roughness and the mechanical property are better than those of a common casting part, the specifications of the installation position and the center height are more selectable, the design and the use are convenient, and the machining bearing seat can be used for drawing and customizing; the mode that adopts the retaining ring fixed bearing has improved the security, makes things convenient for the later maintenance to change the bearing more. Overall structure is simple, and the practicality is strong, and follow-up installation is maintained more simple and conveniently.
The above-mentioned embodiments only represent one of the embodiments of the present invention, and the description thereof is more specific and detailed, but it should not be understood that the scope of the present invention is limited thereby. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.
Claims (10)
1. The utility model provides a machine tooling biserial ball aligning rolling bearing with seat which characterized in that: the bearing seat comprises a bearing seat body and a bearing, wherein a bearing mounting hole is formed in the bearing seat body, and the inner surface of the bearing mounting hole is an inner cylindrical surface; the bearing comprises an inner ring provided with a double-row annular channel, an outer ring provided with an inner spherical raceway and two groups of ball assemblies arranged between the inner ring and the outer ring; the outer surface of the outer ring is a cylindrical surface, the cylindrical surface of the outer ring is in interference fit with the inner cylindrical surface of the bearing mounting hole, and the bearing is symmetrical along the axial direction.
2. The self-aligning double-row ball self-aligning seat bearing for machining according to claim 1, wherein: the axis of the bearing mounting hole is 0.01 millimeter in parallelism tolerance relative to the bottom surface of the bearing seat body, and the surface roughness value is 1.6 micrometers.
3. The self-aligning double-row ball self-aligning seat bearing for machining according to claim 1, wherein: a retainer ring groove is formed in the bearing seat body, and a retainer ring used for fixing the bearing is arranged in the retainer ring groove.
4. The self-aligning machined double-row ball self-aligning seated bearing according to claim 1, wherein: the bearing mounting hole center runs through and sets up the through-hole that is used for the pivot to penetrate, the diameter of through-hole is less than the internal diameter of bearing mounting hole.
5. The self-aligning machined double-row ball self-aligning seated bearing according to claim 3, wherein: the bearing seat body is machined.
6. The self-aligning double-row ball self-aligning seat bearing for machining according to claim 1, wherein: the bearing is a double-row ball self-aligning bearing.
7. The self-aligning double-row ball self-aligning seat bearing for machining according to claim 1, wherein: the bearing precision is self-aligning ball bearing: GB/T307.16 level.
8. The self-aligning double-row ball self-aligning seat bearing for machining according to claim 3, wherein: the retainer ring is used for a reverse hole.
9. The self-aligning double-row ball self-aligning seat bearing for machining according to claim 5, wherein: and two ends of the bottom of the bearing seat body are respectively provided with a mounting hole.
10. The self-aligning machined double-row ball self-aligning seated bearing according to claim 1, wherein: the edge parts at two ends of the top of the bearing seat body are subjected to 45-degree chamfering treatment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121303628.0U CN217055969U (en) | 2021-06-10 | 2021-06-10 | Machined double-row ball self-aligning seated bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121303628.0U CN217055969U (en) | 2021-06-10 | 2021-06-10 | Machined double-row ball self-aligning seated bearing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217055969U true CN217055969U (en) | 2022-07-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121303628.0U Active CN217055969U (en) | 2021-06-10 | 2021-06-10 | Machined double-row ball self-aligning seated bearing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217055969U (en) |
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2021
- 2021-06-10 CN CN202121303628.0U patent/CN217055969U/en active Active
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