CN115076224A - Bearing inner assembly, assembly method thereof and tapered roller bearing - Google Patents

Bearing inner assembly, assembly method thereof and tapered roller bearing Download PDF

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Publication number
CN115076224A
CN115076224A CN202210679874.9A CN202210679874A CN115076224A CN 115076224 A CN115076224 A CN 115076224A CN 202210679874 A CN202210679874 A CN 202210679874A CN 115076224 A CN115076224 A CN 115076224A
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China
Prior art keywords
tapered roller
assembly
inner ring
small
cage
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Pending
Application number
CN202210679874.9A
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Chinese (zh)
Inventor
李超
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Schaeffler Technologies AG and Co KG
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Schaeffler Technologies AG and Co KG
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Application filed by Schaeffler Technologies AG and Co KG filed Critical Schaeffler Technologies AG and Co KG
Priority to CN202210679874.9A priority Critical patent/CN115076224A/en
Publication of CN115076224A publication Critical patent/CN115076224A/en
Pending legal-status Critical Current

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C19/00—Bearings with rolling contact, for exclusively rotary movement
    • F16C19/22—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings
    • F16C19/34—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings for both radial and axial load
    • F16C19/36—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings for both radial and axial load with a single row of rollers
    • F16C19/364—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings for both radial and axial load with a single row of rollers with tapered rollers, i.e. rollers having essentially the shape of a truncated cone
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C43/00—Assembling bearings
    • F16C43/04—Assembling rolling-contact bearings
    • F16C43/06—Placing rolling bodies in cages or bearings

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Rolling Contact Bearings (AREA)

Abstract

The invention relates to an inner bearing assembly, an assembly method thereof and a tapered roller bearing. The inner bearing component for a tapered roller bearing comprises an inner ring (1), a cage (2) and rolling bodies (3, 4), wherein the rolling bodies (3, 4) comprise a first tapered roller (3) and a second tapered roller (4), wherein the outer circumferential surface of a small rib (11) of the inner ring (1) is configured with a groove (12), the groove (12) is deflected in the circumferential direction at the same angle relative to the corresponding second tapered roller (4) such that the second tapered roller (4) is stopped by a circumferential region of the small rib (11) in which the groove (12) is not provided, and the small rib (11) can move in the axial direction through the radial inner side of the rolling bodies (3, 4) arranged in the cage (2) when the groove (12) is respectively aligned in the axial direction with the corresponding second tapered roller (4). The tapered roller bearing comprises the bearing inner assembly.

Description

Bearing inner assembly, assembly method thereof and tapered roller bearing
Technical Field
The invention relates to the technical field of bearings. The invention particularly relates to a bearing inner assembly for a tapered roller bearing, an assembly method of the bearing inner assembly and the tapered roller bearing.
Background
The conventional tapered roller bearing is generally constructed as a split type bearing including an outer race and an assembled bearing inner assembly. The bearing inner assembly comprises an inner ring, a retainer and a large number of tapered rollers distributed along the circumferential direction. The outer periphery of the inner ring is configured with an outer raceway extending substantially in a truncated cone shape, and flanges, i.e., a small flange on the small-diameter end side and a large flange on the large-diameter end side, are provided at both axial ends of the outer raceway, respectively. The retainer comprises two retainer rings which are coaxially arranged and have different diameters, and the two retainer rings are connected through a plurality of lintels which are arranged in the circumferential direction, so that a plurality of pockets which are distributed along the axial direction are formed. In the bearing inner assembly, the radial outward movement of the tapered roller is stopped by a lintel of the retainer, and the radial inward movement of the tapered roller is stopped by an outer raceway of the inner ring; in the axial direction, the tapered rollers are constrained at their small-diameter ends by the small-diameter retainer ring of the cage and the small rib of the inner ring and at their large-diameter ends by the large-diameter retainer ring of the cage and the large rib of the inner ring.
For the tapered roller bearing with the common size, the cage mostly adopts a steel pocket cage. In the process of assembling components in the bearing, firstly, the lintel of the retainer is required to be expanded outwards in the radial direction to increase the radial moving space of the tapered rollers, so that after all the tapered rollers are contacted with the lintel of the retainer, the diameter of the maximum enveloping circle formed on the inner sides of the small-diameter end parts of all the tapered rollers is larger than that of the minimum enveloping circle on the outer sides of the small flanges of the inner ring, and therefore, the inner ring can be pushed into the retainer fully distributed with the tapered rollers in the axial direction, and the tapered rollers are assembled on the outer raceway of the inner ring. After the tapered rollers are assembled on the outer raceway of the inner ring, the lintel of the cage is pressed back radially inward to form a held-together inner bearing assembly.
However, in the case of a large-sized tapered roller bearing, the above method for assembling the bearing inner assembly is extremely difficult because the cage needs to be expanded and then contracted, because the steel material of the cage is thick and difficult to press, and a special expansion and contraction tool needs to be specially manufactured for the large-sized cage, which is extremely high in cost.
Disclosure of Invention
Therefore, an object of the present invention is to provide a bearing inner assembly for a tapered roller bearing, which can be assembled easily and at low cost, particularly when the tapered roller bearing is constructed as a large bearing provided with a pocket cage.
According to one aspect of the present invention, the above object is achieved by an inner bearing assembly for a tapered roller bearing. The bearing inner assembly comprises an inner ring, a retainer and rolling bodies, wherein the inner ring is provided with a small flange at the small-diameter end side, the retainer is provided with pockets distributed along the circumferential direction, and the rolling bodies are respectively arranged in the pockets. The rolling elements comprise first and second tapered rollers, wherein the first and second tapered rollers are each distributed in groups at least in the circumferential direction, wherein the small-diameter end of the first tapered roller and the small-diameter end of the second tapered roller are designed such that the diameter of the largest inscribed circle of all the first tapered rollers is greater than the outer diameter of the small rib of the inner ring, and the diameter of the largest inscribed circle of all the second tapered rollers is smaller than the outer diameter of the small rib of the inner ring. Furthermore, the outer circumferential surface of the small rib of the inner ring is formed with a groove, wherein the circumferential position of the groove on the small rib corresponds to the circumferential position of the second tapered roller in all rolling elements, and the grooves are each deflected at the same angle in the circumferential direction relative to the corresponding second tapered roller, so that the second tapered roller is stopped by the circumferential region of the small rib in which no groove is provided, wherein the groove penetrates the small rib in the axial direction in such a way that the small rib can be moved in the axial direction through the radially inner side of the rolling elements arranged in the cage when the groove is each aligned in the axial direction with the corresponding second tapered roller.
The components of the bearing inner assembly proposed here, i.e. the inner ring, the cage and the rolling bodies, are suitable for tapered roller bearings. The rolling elements, i.e. the first and second tapered rollers, are designed as tapered rollers, which can be mounted in a rollable manner by means of a cage on an outer raceway of the inner ring, which runs substantially in the form of a truncated cone, so that an inner bearing component is formed. In this case, the first tapered roller and the second tapered roller can be identically configured in the respective axial intermediate sections, i.e., the sections in which the respective rolling elements roll against the outer raceway of the inner ring. Within the scope of this document, the first and second tapered rollers have different configurations at the respective small diameter ends.
The rolling bodies are arranged in the circumferential direction in such a way that the first conical rollers and the second conical rollers are each distributed, preferably uniformly distributed, at least in groups in the circumferential direction. In this context, it is understood that a second tapered roller group of one, two, or more than two second tapered rollers is inserted between the first tapered roller bearings distributed in the circumferential direction. Here, it is particularly preferable that the bearing inner assembly has good rotational stability with the same number of first tapered rollers between every two second tapered roller groups arranged most adjacent in the circumferential direction.
Here, the small diameter end portions of the first tapered rollers and the small diameter end portions of the second tapered rollers are configured such that the diameter of the largest inscribed circle of all the first tapered rollers is larger than the outer diameter of the small rib of the inner ring, and the diameter of the largest inscribed circle of all the second tapered rollers is smaller than the outer diameter of the small rib of the inner ring. The maximum inscribed circle of all the first tapered rollers can be understood to be the diameter of the maximum enveloping circle formed inside the small-diameter ends of all the first tapered rollers when the rolling elements are arranged in the pockets of the cage. Similarly, the maximum inscribed circle of all the second tapered rollers may be understood as the diameter of the maximum enveloping circle formed inside the small-diameter ends of all the second tapered rollers with the rolling elements arranged in the pockets of the cage. The outer diameter of the small rib of the inner ring is understood to mean the diameter of the smallest enveloping sleeve which is able to envelop the entire small rib in the axial direction. In this case, all the rolling bodies arranged in the cage can be assembled with respect to the inner ring by means of the stop or restraint of the second tapered roller at the small rib of the inner ring, so that the bearing inner assembly is obtained as an undivided, monolithic assembly.
In order to realize the assembly of the bearing inner assembly, the outer peripheral surface of the small rib of the inner ring is provided with a groove. In this case, the number and the circumferential position of the grooves are such that in a first rotational position of the inner ring relative to the cage (rolling element and cage assembly) in which the rolling elements are already arranged, at least one groove is present on the small rib, which is in each case aligned in the axial direction with each second tapered roller. The groove is shaped and dimensioned such that it penetrates the outer circumferential surface of the small rib of the inner ring in the axial direction, so that in a first rotational position of the inner ring relative to the rolling elements and the cage assembly, the small rib of the inner ring can move through the radial inside of the rolling elements and the cage assembly, i.e. here the radial inside of the small-diameter end of the rolling elements arranged in the cage, when the inner ring is moved in the axial direction. It will be appreciated that after the inner ring has been moved axially radially inwardly of the rolling elements and cage assembly so that the small and large rims of the inner ring are located axially on either side of the aligned rolling elements, respectively, it is necessary to rotate the inner ring through a suitable angle relative to the rolling elements and cage assembly so that the inner ring is in a second rotational position relative to the rolling elements and cage assembly. In this second rotational position, the second tapered roller of the rolling bodies is axially stopped at its small-diameter end by a circumferential region of the small rib of the inner ring in which no groove is provided, so that a completely assembled bearing inner assembly is obtained.
In an advantageous embodiment, the radius of the small-diameter end of the first tapered roller is greater than the radius of the small-diameter end of the second tapered roller. This makes it possible to easily and inexpensively realize the dimensional relationship between the maximum inscribed circle diameter of all the first tapered rollers, the maximum inscribed circle diameter of all the second tapered rollers, and the outer diameter of the small rib of the inner ring.
In an advantageous embodiment, the assembly in the bearing comprises 2 to 8 second tapered rollers. Therefore, a sufficient stopping area can be provided, and the inner ring can realize effective stopping on the rolling body and the retainer assembly integrally.
In this case, the number of the second conical rollers is advantageously n, and the second conical rollers are distributed uniformly in the circumferential direction, wherein the angle by which the grooves are deflected in the circumferential direction with respect to the corresponding second conical rollers is in the range of 180 °/n ± 15 °. This advantageously makes it possible to set the angle of deflection of the inner ring relative to the rolling elements and the cage assembly between the first and second rotational positions, so that the assembly is easy and the reliability of preventing the bearing inner stop part from falling out is high.
In an advantageous embodiment, the inner ring and the cage are each configured with a circumferential positioning groove. Thus, during assembly of the assembly in the bearing, the inner ring can be quickly and accurately rotated from the first rotational position to the second rotational position relative to the rolling elements and the cage assembly.
According to another aspect of the present invention, the foregoing object is achieved by a method for assembling an inner bearing assembly of a tapered roller bearing. The assembling method comprises the following steps:
A) providing an inner ring, a cage and a rolling body;
B) arranging the rolling bodies in pockets of the cage to obtain rolling bodies and a cage assembly;
C) arranging the inner ring on the large-diameter end side of the rolling body and the retainer assembly in such a way that the grooves of the small flanges of the inner ring are respectively aligned with the second tapered rollers in the axial direction;
D) moving the inner ring in the axial direction so that the small rib of the inner ring moves through the rolling body and the radial inner side of the retainer assembly;
E) the inner ring is rotated in the circumferential direction relative to the rolling elements and the cage assembly, so that the second tapered roller is stopped by the circumferential region of the small rib in which no groove is provided.
In this connection, it is understood that the inner ring, the cage and the rolling elements provided in step a) are components constructed according to the preceding embodiments, which are particularly suitable for tapered roller bearings. In this case, the rolling elements include the first tapered roller and the second tapered roller configured as in the above-described embodiment, and the outer peripheral surface of the small rib of the inner ring is configured with a groove. In step B, the rolling elements are arranged in the circumferential direction according to the preceding embodiments such that the first conical rollers and the second conical rollers are each distributed, preferably uniformly distributed, at least in groups in the circumferential direction.
In an advantageous embodiment, the inner ring and the cage are each configured with circumferential positioning grooves, and in step E) the rolling elements and the rotating inner ring of the cage assembly are circumferentially opposed such that the circumferential positioning grooves of the cage and the circumferential positioning grooves at the inner ring are aligned with one another. This enables a quick and accurate circumferential positioning of the inner ring from a first rotational position to a second rotational position relative to the rolling elements and the cage assembly.
According to still another aspect of the present invention, the foregoing object is achieved by a tapered roller bearing. The tapered roller bearing comprises an outer ring and an inner bearing component constructed as described in the above embodiments, and/or an inner bearing component assembled by means of an assembly method as described in the above embodiments.
In conclusion, by means of the structure of the bearing inner assembly and the corresponding assembly method, the expansion and contraction of the retainer are avoided in the assembly process of the bearing inner assembly, and the assembly difficulty of the bearing inner assembly is reduced. The inner bearing assembly and the corresponding assembly method provided herein can greatly reduce the manufacturing cost of the tapered roller bearing, especially for the application of large tapered roller bearings.
Drawings
Features, advantages and technical effects of preferred embodiments of the present invention will be described below with reference to the accompanying drawings.
FIG. 1 is a perspective view of an assembly within a bearing according to one embodiment;
FIG. 2 is a perspective view of an assembly of the bearing according to FIG. 1 during assembly;
FIG. 3 is an enlarged view of a portion of FIG. 2;
FIG. 4 is a schematic view of the assembly of the bearing inner assembly according to FIG. 1 at the first tapered roller;
FIG. 5 is a schematic view of the assembly of the bearing according to FIG. 1 at a second tapered roller;
fig. 6 is a partial axial cross-sectional view of an assembly in a bearing according to fig. 1.
Detailed Description
FIG. 1 illustrates a perspective view of an assembly in a bearing according to one embodiment. The bearing inner assembly shown here can be fitted with an outer ring, not shown in the drawings, to jointly constitute a tapered roller bearing. As shown in fig. 1, the bearing inner assembly includes an inner ring 1, a cage 2, and a large number of rolling elements 3, 4 distributed in the circumferential direction.
The outer periphery of the inner ring 1 is configured with an outer raceway extending substantially in the shape of a truncated cone, and flanges, i.e., a small flange 11 on the small diameter end side and a large flange on the large diameter end side, are provided at both axial ends of the outer raceway.
The cage 2 is designed here as a pocket cage, which comprises two coaxially arranged retaining rings of different diameters, which are connected by a plurality of webs arranged in the circumferential direction, thereby forming a plurality of pockets distributed in the axial direction.
The rolling bodies here comprise a first tapered roller 3 and a second tapered roller 4.
The first tapered rollers 3 and the second tapered rollers 4 are respectively distributed in the pockets of the cage 2 at least in groups in the circumferential direction. In the present embodiment, as shown in fig. 1, the rolling elements include four second tapered rollers 4, where the second tapered rollers 4 are uniformly distributed in the circumferential direction. In other embodiments, 2 to 8 second tapered rollers may be provided, in particular with reference to the total number of rolling elements.
In the present embodiment, the first tapered roller 3 and the second tapered roller 4 differ only in the configuration at each small-diameter end portion. Specifically, the round radius of the small-diameter end portion of the first tapered roller 3 is larger than that of the small-diameter end portion of the second tapered roller 4. In other embodiments, the first and second tapered rollers 3 and 4 can also have different configurations at positions other than the small-diameter end portion, for example, different configurations at the large-diameter end portion, without affecting the normal operation of the tapered roller bearing.
With the above-described different designs of the first tapered rollers 3, the second tapered rollers 4 at the small-diameter end and the arrangement in the circumferential direction and the design of the outer diameter of the small rib 11 of the inner ring 1, the diameter of the largest inscribed circle of all the first tapered rollers is larger than the outer diameter of the small rib of the inner ring, and the diameter of the largest inscribed circle of all the second tapered rollers is smaller than the outer diameter of the small rib of the inner ring.
In this case, the second tapered rollers 4 are constrained at their small-diameter end portions by the small-diameter lands of the cage 2 and the small lands 11 of the inner ring 1 and constrained at their large-diameter end portions by the large-diameter lands of the cage 2 and the large lands of the inner ring 1 in the axial direction. Furthermore, since the rolling bodies 3, 4 are arranged in the pockets from the radially inner side of the cage 2, the radially outward movement of the rolling bodies 3, 4 is stopped by the webs of the cage 2, and the small-diameter and large-diameter collars of the cage 2 each stop the axial movement of the rolling bodies 3, 4. The first tapered rollers 3 are thus constrained by the cage 2 in the axial and circumferential direction of the assembly in the bearing with respect to the second tapered rollers 4, whereby the first tapered rollers 3 are assembled with respect to the inner ring 1 by axial constraint of the second tapered rollers 4 with respect to the small and large ribs 11, 1 of the inner ring 1. The rolling elements 3, 4 are stopped by the outer race of the inner ring 1 during the radially inward movement. Therefore, the bearing inner assembly forms an integral assembly in the processes of transportation, equipment assembly and the like.
In order to assemble the bearing inner assembly, the outer peripheral surface of the small rib 11 of the inner ring 1 is formed with a groove 12 penetrating the outer peripheral surface in the axial direction. The groove 12 configuration and arrangement is further described below in the description of the method of assembly of the components within the bearing.
In the assembling method for the bearing inner assembly according to the present embodiment, first, step a), the inner ring 1, the cage 2, and the rolling elements including the first tapered roller 3 and the second tapered roller 4 having the above-described structure are provided.
Then, step B), the rolling elements 3, 4 are arranged in the pockets of the cage 2 from the radially inner side of the cage 2 to obtain a rolling element and cage assembly. In the present embodiment, the four second tapered rollers 4 are distributed as uniformly as possible in the circumferential direction.
Thereafter, step C), the inner ring 1 is arranged in a first rotational position in the circumferential direction relative to the rolling elements and the cage assembly such that the central axis of the inner ring 1 coincides with the central axis of the cage 2 and the grooves 12 of the small ribs 11 of the inner ring 1 are in axial alignment with the second tapered rollers 4, respectively. The alignment of the groove 12 with the second tapered roller 4 described herein can refer to the circumferential positions of the groove 12 and the second tapered roller 4 shown in fig. 2 and 3. In the present embodiment, the number of the grooves 12 coincides with the number of the second conical rollers 4, and the circumferential positions of the grooves 12 and the second conical rollers 4 also coincide in the first rotational position.
Thereafter, step D), the inner ring 1 is moved in the axial direction such that the small ribs 11 of the inner ring 1 move in the axial direction through the radial inner sides of the rolling elements and the cage assembly until the small ribs 11 and the large ribs of the inner ring 1 are located axially outside the aligned rolling elements 3, 4, respectively. In this process, the circumferential region of the small rib 11 of the inner ring 1, which is not provided with grooves, moves axially through the radially inner side of the small-diameter end portion 31 of the first tapered roller 3, see fig. 4; at the same time, the circumferential region of the small rib 11 of the inner ring 1, in which the groove 12 is provided, moves in the axial direction through the radially inner side of the small-diameter end portion 41 of the second tapered roller 4, see fig. 5. The assembly in the bearing thus forms the assembly process state shown by fig. 2 and 3.
Finally, step E), the inner ring 1 is rotated in the circumferential direction relative to the rolling element and cage assembly up to a second rotational position, as shown in fig. 1, in which the small-diameter end 41 of the second tapered roller 4 is stopped by the circumferential region of the small rib 11, in which the recess 12 is not provided, see fig. 6. Thereby obtaining the finished bearing inner assembly shown in figure 1. In the embodiment in which n (here, n is preferably an integer of 2 or more and 8 or less, for example, four in the present embodiment) second tapered rollers 4 are uniformly distributed in the circumferential direction, the deflection angle of the second rotational position with respect to the first rotational position is preferably in the range of 180 °/n ± 15 °. Thereby, while achieving effective stopping of the small beads 11 of the inner ring 1 against the second tapered rollers 4, the reliability of easy assembly and prevention of falling-off separation of the resistor members in the bearing is high.
In conclusion, by means of the structure of the bearing inner assembly and the corresponding assembly method, the expansion and contraction of the retainer are avoided in the assembly process of the bearing inner assembly, and the assembly difficulty of the bearing inner assembly is reduced. The inner bearing assembly and the corresponding assembly method provided herein can greatly reduce the manufacturing cost of the tapered roller bearing, especially for the application of large tapered roller bearings.
It should be understood that the above-described embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.
In the description herein, it is to be noted that, unless otherwise explicitly specified and defined, the terms "axial", "radial" and "circumferential" are based on the rotational axis of the tapered roller bearing, i.e., the central axis of the inner ring and the cage. The term "axial" is understood here to mean a direction along the axis of rotation of the tapered roller bearing or a direction parallel to the axis of rotation; the term "radial" is understood to mean a direction perpendicular to and intersecting the axis of rotation of the tapered roller bearing; the term "circumferential" may be understood as a direction around the axis of rotation of the tapered roller bearing. Furthermore, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
List of reference numerals
1 inner ring
11 Small flange
12 grooves
2 holding rack
3 first tapered roller
31 small diameter end of first tapered roller
4 second tapered roller
41 minor diameter end portion of second tapered roller

Claims (8)

1. An inner bearing assembly for a tapered roller bearing, comprising:
an inner ring (1) having a small rib (11) on a small-diameter end side;
a cage (2) having pockets distributed in a circumferential direction;
rolling bodies (3, 4) respectively arranged in the pockets,
it is characterized in that the preparation method is characterized in that,
the rolling bodies (3, 4) comprise a first tapered roller (3) and a second tapered roller (4),
wherein the first conical rollers (3) and the second conical rollers (4) are distributed at least in groups in the circumferential direction,
wherein the small diameter end portion (31) of the first tapered roller (3) and the small diameter end portion (41) of the second tapered roller (4) are configured such that the diameter of the largest inscribed circle of all the first tapered rollers (3) is larger than the outer diameter of the small rib (11), and the diameter of the largest inscribed circle of all the second tapered rollers (4) is smaller than the outer diameter of the small rib (11);
the peripheral surface of the small flange (11) is provided with a groove (12),
wherein the circumferential position of the groove (12) on the small rib (11) corresponds to the circumferential position of the second tapered roller (4) in all of the rolling bodies (3, 4), and the grooves (12) are each offset in the circumferential direction by the same angle relative to the corresponding second tapered roller (4), so that the second tapered rollers (4) are stopped by the circumferential region of the small rib (11) in which the groove (12) is not provided,
wherein the grooves (12) extend axially through the small ribs (11) in such a way that, when the grooves (12) are each axially aligned with a corresponding second tapered roller (4), the small ribs (11) can be moved axially through the radial inside of the rolling elements (3, 4) arranged in the cage (2).
2. The inner bearing assembly for a tapered roller bearing according to claim 1, wherein a radius of a small-diameter end of the first tapered roller (3) is larger than a radius of a small-diameter end of the second tapered roller (4).
3. The inner bearing assembly for a tapered roller bearing according to claim 1, wherein the inner bearing assembly comprises 2 to 8 second tapered rollers (4).
4. The inner bearing assembly for a tapered roller bearing according to claim 3, wherein the number of the second tapered rollers (4) is n, and the second tapered rollers (4) are evenly distributed in the circumferential direction, wherein the grooves (12) are deflected in the circumferential direction by an angle in the range of 180 °/n ± 15 ° with respect to the corresponding second tapered rollers (4).
5. The inner bearing assembly for a tapered roller bearing according to claim 1, wherein the inner ring (1) and the cage (2) are each configured with a circumferential positioning groove.
6. Method for assembling an assembly in a bearing for a tapered roller bearing according to any of claims 1 to 5, wherein the assembling method comprises the steps of:
A) -providing the inner ring (1), the cage (2) and the rolling elements (3, 4);
B) arranging the rolling bodies (3, 4) in pockets of the cage (2) to obtain a rolling body and cage assembly;
C) arranging the inner ring (1) on the large-diameter end side of the rolling element and cage assembly in such a way that the grooves (12) of the small ribs (11) of the inner ring (1) are each axially aligned with the second tapered rollers (4);
D) moving the inner ring (1) in an axial direction such that a small rib (11) of the inner ring (1) moves through a radially inner side of the rolling element and cage assembly;
E) rotating the inner ring (1) in the circumferential direction relative to the rolling element and cage assembly in such a way that the second tapered roller (4) is stopped by a circumferential region of the small rib (11) in which the groove (12) is not provided.
7. An assembly method according to claim 6, wherein the inner ring (1) and the cage (2) are each configured with circumferential positioning slots, and in step E) the inner ring (1) is rotated in the circumferential direction relative to the rolling element and cage assembly such that the circumferential positioning slots of the cage (2) and the circumferential positioning slots at the inner ring (1) are aligned with one another.
8. Tapered roller bearing, characterized in that it comprises an outer ring and an inner bearing component according to any one of claims 1-5 and/or assembled by means of an assembly method according to claim 6 or 7.
CN202210679874.9A 2022-06-15 2022-06-15 Bearing inner assembly, assembly method thereof and tapered roller bearing Pending CN115076224A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202210679874.9A CN115076224A (en) 2022-06-15 2022-06-15 Bearing inner assembly, assembly method thereof and tapered roller bearing

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202210679874.9A CN115076224A (en) 2022-06-15 2022-06-15 Bearing inner assembly, assembly method thereof and tapered roller bearing

Publications (1)

Publication Number Publication Date
CN115076224A true CN115076224A (en) 2022-09-20

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Application Number Title Priority Date Filing Date
CN202210679874.9A Pending CN115076224A (en) 2022-06-15 2022-06-15 Bearing inner assembly, assembly method thereof and tapered roller bearing

Country Status (1)

Country Link
CN (1) CN115076224A (en)

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