A tapered inner diameter double row angular contact ball bearing

Abstract

This invention provides a tapered inner diameter double-row angular contact ball bearing, relating to the field of bearing technology, including a bearing mounting component; a main shaft component is slidably inserted into the bearing mounting component; a coaxial test piece is bolted to the bearing mounting component; a positioning mounting component is fixedly welded to the bearing mounting component, and a ring of insertion limiting components is slidably installed on the positioning mounting component; a drive auxiliary component is threadedly connected to the positioning mounting component, and the drive auxiliary component is attached to the ring of insertion limiting components, which can assist in accurate coaxial testing. Whether it is a coaxiality difference in the main shaft component installation or wear caused by long-term use of the bearing mounting component, it can assist in testing. The tapered inner diameter design eliminates clearance, and the bearing's perpendicularity is also qualified. This solves the problems of high installation precision control requirements for current double-row angular contact ball bearing components, the ease with which errors can lead to bearing failure, and the high installation difficulty.

Description

Technical Field

[0001] This invention relates to the field of bearing technology, and more particularly to a tapered inner diameter double-row angular contact ball bearing. Background Technology

[0002] The design of double-row angular contact ball bearings is basically the same as that of single-row angular contact ball bearings, but they occupy less axial space. Double-row angular contact ball bearings can withstand radial loads and axial loads acting in two directions. They can limit the bidirectional axial displacement of the shaft or housing. The contact angle is 30 degrees. When installing the bearing, the outer diameter and inner diameter of the bearing must be determined first. The fit between the two dimensions must meet the standard requirements before installation can proceed. Installation also requires that the bearing be installed vertically on the shaft without any misalignment. The current installation precision control requirements for double-row angular contact ball bearing shaft components are high. Errors can easily lead to bearing failure. The installation is difficult, and the coaxiality control of the bearing installation is not good, making it difficult to achieve real-time detection to ensure that the coaxiality meets the standard. Summary of the Invention

[0003] This disclosure relates to a tapered inner diameter double-row angular contact ball bearing, wherein the bearing mounting component is changed to a tapered inner diameter. The machining method of this tapered inner diameter is the same as that of conventional inner diameter machining, and there is no special machining. When using a tapered inner diameter, there is no need to consider tolerance fit. As long as the tapered shape of the bearing and the tapered shape of the shaft are combined, it is fine. Using a tapered inner diameter, the coaxiality of the bearing and the shaft is good and there is no clearance. At the same time, the perpendicularity of the bearing is also qualified, and it is easier to disassemble and replace.

[0004] In a first aspect, this disclosure provides a tapered inner diameter double-row angular contact ball bearing, specifically comprising a bearing mounting component; a main shaft component slidably inserted into the bearing mounting component; a coaxial test piece connected to the bearing mounting component by bolts; a positioning mounting component fixedly welded to the bearing mounting component, and a ring of insertion limiting components slidably mounted on the positioning mounting component; a drive auxiliary component threadedly connected to the positioning mounting component, and the drive auxiliary component abutting against the ring of insertion limiting components; the ring of insertion limiting components slidably inserted into the main shaft component; a safety limiting component threadedly connected to the drive auxiliary component; the safety limiting component slidably inserted into the positioning mounting component; the bearing mounting component includes: an inner bearing ring, a dust seal, an outer bearing ring, and ball bearing supports, with an outer bearing ring located outside the inner bearing ring; two ball bearing supports are provided, each located between the inner and outer bearing rings; two ball grooves are respectively provided on the inner side of the outer bearing ring and the outer side of the inner bearing ring; the inner bearing ring has a tapered hole; and the dust seal is fixedly fitted onto the inner bearing ring.

[0005] In at least some embodiments, the positioning mounting component includes: a positioning mounting ring and a safety conical hole, wherein the positioning mounting ring has a safety conical hole; the positioning mounting ring is threaded; the positioning mounting ring is fixedly welded to the inner ring of the bearing; and the positioning mounting ring is coaxial with the inner ring of the bearing.

[0006] In at least some embodiments, the bearing mounting component further includes: bearing balls, the inner ring of the bearing having a tapered hole; the bearing balls having two rings, the two rings of bearing balls being rolled between the inner ring and the outer ring of the bearing respectively; and one ring of bearing balls being embedded in each of the two ball bearing supports.

[0007] In at least some embodiments, the insertion limiting member further includes: a reset spring, which is fixedly mounted on a spring mounting ring; the reset spring is fitted onto the insertion limiting mounting post.

[0008] In at least some embodiments, the insertion limiting member includes: an insertion limiting mounting post and a spring mounting ring, wherein the insertion limiting mounting post is slidably mounted on the positioning mounting ring; both ends of the insertion limiting mounting post are tapered structures; the bottom end of the insertion limiting mounting post is inserted into the anti-detachment tapered hole; the spring mounting ring is fixedly mounted on the insertion limiting mounting post; and the spring mounting ring is slidably mounted on the positioning mounting ring.

[0009] In at least some embodiments, the safety limiting member includes: a safety limiting bolt and a safety conical shaft, wherein the safety limiting bolt is threaded onto the wrench clamping protrusion; the safety limiting bolt is fixedly mounted with the safety conical shaft, and the safety conical shaft is inserted into the safety conical hole.

[0010] In at least some embodiments, the coaxial test piece includes: a coaxial test mounting shell and bolted connecting plates, wherein two bolted connecting plates are fixedly mounted on the coaxial test mounting shell; the two bolted connecting plates are respectively fixedly mounted on the outer ring of the bearing by bolts.

[0011] In at least some embodiments, the spindle component includes: a tapered spindle, an anti-detachment tapered hole, and a detection auxiliary ring. The tapered spindle has an anti-detachment tapered hole. The tapered spindle is slidably inserted into the inner ring of the bearing. The detection auxiliary ring is fixedly installed on the tapered spindle, and the detection auxiliary ring has a groove.

[0012] In at least some embodiments, the drive auxiliary component includes: a drive adjusting cylinder, a wrench clamping protrusion, and a dust cover; an octagonal convex ring is fixedly mounted on the drive adjusting cylinder; the drive adjusting cylinder is threadedly connected to a positioning mounting ring; the inner end of the drive adjusting cylinder has a beveled structure; the inner end of the drive adjusting cylinder is attached to the top of the insertion limiting mounting post; a dust cover is fixedly sleeved on the drive adjusting cylinder; and the dust cover is attached to the outer ring of the bearing.

[0013] In at least some embodiments, the coaxial test piece further includes: an adjusting bolt, a sliding adjusting post, and a trigger lever; the adjusting bolt is rotatably mounted on the coaxial test mounting housing; the sliding adjusting post is a hexagonal column structure; the sliding adjusting post is slidably mounted on the coaxial test mounting housing; the adjusting bolt is threadedly connected to the sliding adjusting post; a trigger lever is fixedly welded to the sliding adjusting post; the distance between the end of the trigger lever and the outer ring of the detection auxiliary ring is one millimeter; the trigger lever is an elastic steel sheet structure.

[0014] This invention provides a tapered inner diameter double-row angular contact ball bearing, which has the following beneficial effects: The coaxial test piece used in this invention can assist in accurate coaxial testing. It can detect both coaxiality differences in the main spindle assembly and wear caused by prolonged use of the bearing assembly, ensuring the accuracy and quality of the structure during use. A noise signal is generated quickly to indicate any deviation. The bearing assembly uses an internal tapered structure. Traditional structures rely on interference fits for installation, which require precise dimensions for both the shaft's outer diameter and the bearing's inner diameter. Excessive interference can lead to a tight fit, causing the bearing to seize and become unable to rotate; insufficient interference can result in a loose fit. The tapered inner diameter eliminates the need to consider tolerances; the tapered shape of the bearing simply needs to match the tapered shape of the shaft. This method ensures good coaxiality between the bearing and shaft, eliminates gaps, maintains proper bearing perpendicularity, and facilitates easier disassembly and replacement.

[0015] In addition, the use of a drive auxiliary component in conjunction with a plug-in limiting component can ensure the coaxiality of the tapered spindle during installation. It can be positioned in one go to ensure efficient and quick coaxial installation, while also making disassembly control extremely convenient. The tapered inclined surface can be used to squeeze the tapered spindle to make it firmly plugged into the inner ring of the bearing, ensuring the stability of the installation and preventing shaking and loosening.

[0016] In addition, by using a safety limit device, the limiting insertion work can be assisted, which can help prevent the drive adjustment cylinder from becoming loose and prevent it from becoming loose due to factors such as vibration when applied to the equipment. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings of the embodiments will be briefly described below.

[0018] The accompanying drawings described below are only related to some embodiments of the invention and are not intended to limit the invention.

[0019] In the attached diagram: Figure 1A schematic diagram of the overall bearing structure of this application is shown; Figure 2 A cross-sectional view of the overall internal structure of the bearing of this application is shown; Figure 3 A cross-sectional view of a partial bearing structure of this application is shown; Figure 4 A schematic diagram of the bearing mounting structure of this application is shown; Figure 5 A schematic diagram of the main shaft structure of this application is shown; Figure 6 A schematic diagram of the coaxial test specimen structure of this application is shown; Figure 7 A schematic diagram of the positioning and mounting component structure of this application is shown; Figure 8 A schematic diagram of the insertion limiting member structure of this application is shown; Figure 9 A schematic diagram of the drive auxiliary component structure of this application is shown.

[0020] List of reference numerals 1. Bearing mounting components; 101. Bearing inner ring; 1011. Dust seal; 102. Bearing outer ring; 103. Ball bearing support; 104. Bearing balls; 2. Spindle components; 201. Tapered spindle; 202. Anti-detachment tapered hole; 203. Detection auxiliary ring; 3. Coaxial test piece; 301. Coaxial test mounting shell; 3011. Bolted connection plate; 302. Adjusting bolt; 303. Sliding adjusting column; 304. Trigger lever; 4. Positioning and mounting components; 401. Positioning and mounting ring; 4011. Safety cone hole; 5. Insertion limiting component; 501. Insertion limiting mounting post; 5011. Spring mounting ring; 502. Return spring; 6. Drive auxiliary components; 601. Drive adjustment cylinder; 6011. Wrench clamping protrusion; 602. Dust cover; 7. Safety limit component; 701. Safety limit bolt; 702. Safety tapered shaft. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the described embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0022] Example 1: Please refer to Figures 1 to 9 : This invention proposes a tapered inner diameter double-row angular contact ball bearing, comprising a bearing mounting component 1; a main shaft component 2 slidably inserted into the bearing mounting component 1; a coaxial test component 3 connected to the bearing mounting component 1 by bolts; a positioning mounting component 4 fixedly welded to the bearing mounting component 1, and a ring of insertion limiting components 5 slidably mounted on the positioning mounting component 4; a drive auxiliary component 6 threadedly connected to the positioning mounting component 4, and the drive auxiliary component 6 abutting the ring of insertion limiting components 5; the ring of insertion limiting components 5 slidably inserted into the main shaft component 2; and a safety limiting component 7 threadedly connected to the drive auxiliary component 6. The safety limit component 7 is slidably inserted into the positioning mounting component 4; the bearing mounting component 1 includes: an inner bearing ring 101, a dustproof ring 1011, an outer bearing ring 102, and a ball bearing bracket 103. The outer bearing ring 102 is provided outside the inner bearing ring 101; there are two ball bearing brackets 103, which are respectively located between the inner bearing ring 101 and the outer bearing ring 102; two ball grooves are respectively provided on the inner side of the outer bearing ring 102 and the outer side of the inner bearing ring 101; the inner bearing ring 101 has a tapered hole inside; the dustproof ring 1011 is fixedly sleeved on the inner bearing ring 101.

[0023] In this embodiment, the bearing mounting component 1 further includes: bearing balls 104, the inner ring 101 of the bearing having a tapered hole; the bearing balls 104 are provided in two rings, and the two rings of bearing balls 104 are respectively rolled between the inner ring 101 and the outer ring 102 of the bearing; a ring of bearing balls 104 is respectively embedded in two ball bearing supports 103; the spindle component 2 includes: a tapered spindle 201, an anti-disengagement tapered hole 202, and a detection auxiliary ring 203, the tapered spindle 201 having an anti-disengagement tapered hole 202; the tapered spindle 201 is slidably inserted into the inner ring 101 of the bearing; the detection auxiliary ring 203 is fixedly installed on the tapered spindle 201, and the detection auxiliary ring 203 has a groove; coaxial test piece. 3 includes: a coaxial test mounting housing 301 and bolted connecting plates 3011, with two bolted connecting plates 3011 fixedly mounted on the coaxial test mounting housing 301; the two bolted connecting plates 3011 are respectively fixedly mounted on the outer ring 102 of the bearing by bolts; the coaxial test component 3 also includes: an adjusting bolt 302, a sliding adjusting column 303, and a triggering plate 304, the adjusting bolt 302 being rotatably mounted on the coaxial test mounting housing 301; the sliding adjusting column 303 is a hexagonal column structure; the sliding adjusting column 303 is slidably mounted on the coaxial test mounting housing 301; the adjusting bolt 302 is threadedly connected to the sliding adjusting column 303; the triggering plate 304 is fixedly welded to the sliding adjusting column 303; the triggering plate 304... The distance between the end of 04 and the outer ring of the detection auxiliary ring 203 is one millimeter; the trigger paddle 304 is an elastic steel sheet structure. By using the coaxial test piece 3, accurate coaxial detection can be assisted. Whether it's a coaxiality difference in the main shaft 2 or wear caused by prolonged use of the bearing mounting piece 1, it can assist in detection, ensuring the accuracy and quality of this structure during use. If a deviation occurs, it can quickly generate noise as a warning. This noise is generated by the trigger paddle 304 being moved by the detection auxiliary ring 203, similar to the principle of a music box. Furthermore, the bearing mounting piece 1 used in this structure has an internal tapered structure. Traditional structures mainly achieve product installation through interference fit. Interference fit installations require precise dimensions for both the outer diameter of the shaft and the inner diameter of the bearing. Excessive interference fit can lead to a tight fit, which makes assembly difficult and reduces bearing clearance, sometimes even causing negative clearance and resulting in bearing seizure. Conversely, insufficient interference fit can result in a loose fit, causing the shaft and bearing to loosen and malfunction. This design facilitates easier installation and disassembly, is more rationally designed, and prevents bearing seizure. By moving the trigger plate 304 through the groove on the detection auxiliary ring 203, abnormal noise can be generated by the trigger plate 304. Alternatively, an increase in the distance between the trigger plate 304 and the detection auxiliary ring 203 can indicate a change in coaxiality.

[0024] In this embodiment, the positioning mounting component 4 includes: a positioning mounting ring 401 and a safety conical hole 4011. The positioning mounting ring 401 has a safety conical hole 4011. The positioning mounting ring 401 is threaded. The positioning mounting ring 401 is fixedly welded to the inner ring 101 of the bearing. The positioning mounting ring 401 is coaxial with the inner ring 101 of the bearing. The insertion limiting component 5 includes: an insertion limiting mounting post 501 and a spring mounting ring 5011. The insertion limiting mounting post 501 is slidably mounted on the positioning mounting ring 401. The mounting post 501 has tapered structures at both ends; the bottom end of the insertion limiting mounting post 501 is inserted into the anti-detachment tapered hole 202; the spring mounting ring 5011 is fixedly installed on the insertion limiting mounting post 501; the spring mounting ring 5011 is slidably installed on the positioning mounting ring 401; the insertion limiting component 5 also includes: a reset spring 502, which is fixedly installed on the spring mounting ring 5011; the reset spring 502 is fitted onto the insertion limiting mounting post 501; the drive auxiliary component 6 includes: a drive adjusting cylinder 601 and a wrench. The clamping protrusion 6011 and dust cover 602 are used. An octagonal convex ring is fixedly installed on the drive adjusting cylinder 601. The drive adjusting cylinder 601 is threadedly connected to the positioning mounting ring 401. The inner end of the drive adjusting cylinder 601 has a beveled structure. The inner end of the drive adjusting cylinder 601 is attached to the top of the insertion limiting mounting post 501. The dust cover 602 is fixedly sleeved on the drive adjusting cylinder 601. The dust cover 602 is attached to the outer ring 102 of the bearing. By using the set drive auxiliary component 6 in conjunction with the insertion limiting component 5, the tapered shape can be guaranteed. The coaxiality of the spindle 201 during installation ensures efficient and quick coaxial installation with one-time positioning, while also making disassembly extremely convenient. The set ring of insertion limiting parts 5 not only limits the conical spindle 201, but also uses the conical inclined surface to squeeze the conical spindle 201 to make it firmly inserted into the inner ring 101 of the bearing, ensuring the stability of the installation and preventing shaking and loosening, thus enhancing its practicality. Rotating the drive adjusting cylinder 601 can squeeze the insertion limiting installation post 501 and use the conical structure at the bottom to squeeze the anti-loosening conical hole 202.

[0025] In Example 2, based on Example 1, the safety limiting component 7 includes: a safety limiting bolt 701 and a safety conical shaft 702. The safety limiting bolt 701 is threaded onto the wrench clamping protrusion 6011; the safety conical shaft 702 is fixedly installed on the safety limiting bolt 701 and is inserted into the safety conical hole 4011. By using the safety limiting component 7, the limiting insertion work can be assisted, the driving adjusting cylinder 601 can be prevented from loosening, the tightening stability of the driving adjusting cylinder 601 can be ensured, and the safety limiting function can be effectively achieved.

[0026] The working principle of this embodiment is as follows: First, the tapered spindle 201 is installed by inserting it into the inner ring 101 of the bearing. During bearing operation, due to factors such as wear, if the coaxiality between the tapered spindle 201 and the outer ring 102 of the bearing changes, the tapered spindle 201 will wobble. At this time, the outer ring 102 of the bearing and the detection auxiliary ring 203 are no longer concentric circles. The trigger lever 304 can be moved by the groove on the detection auxiliary ring 203, and the trigger lever 304 will produce abnormal noise. Alternatively, the distance between the trigger lever 304 and the detection auxiliary ring 203 will increase, and the change in coaxiality can be observed. The structure is more reasonable. The sliding mechanism is driven by rotating the adjusting bolt 302. Moving the adjustable column 303 moves the trigger lever 304 to adjust and detect the spacing of the auxiliary ring 203. The reset spring 502 drives the insertion limit mounting column 501 to fit against the drive adjusting cylinder 601. Rotating the drive adjusting cylinder 601 squeezes the insertion limit mounting column 501 and uses the tapered structure at the bottom to squeeze the anti-disengagement tapered hole 202, thus squeezing and pushing the tapered main shaft 201 to be firmly inserted into the bearing inner ring 101. The dust cover 602 and dust ring 1011 can assist in dust prevention. Finally, by rotating the safety limit bolt 701, the safety tapered shaft 702 is driven to insert into the safety tapered hole 4011, thus achieving the limiting operation of the drive adjusting cylinder 601.

[0027] The following points should be noted in this article: 1. The accompanying drawings of the embodiments disclosed herein only relate to the structures involved in the embodiments disclosed herein; other structures can be referred to in a general design.

[0028] 2. Where there is no conflict, the embodiments of this disclosure and the features in the embodiments can be combined with each other to obtain new embodiments.

[0029] The above are merely specific embodiments of this disclosure, but the scope of protection of this disclosure is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this disclosure should be included within the scope of protection of this disclosure. Therefore, the scope of protection of this disclosure should be determined by the scope of the claims.

Claims

1. A tapered inner diameter double-row angular contact ball bearing, comprising a bearing mounting component (1); a main shaft component (2) is slidably inserted into the bearing mounting component (1); characterized in that: The bearing mounting component (1) is bolted to a coaxial test piece (3); a positioning mounting component (4) is fixedly welded to the bearing mounting component (1), and a ring of insertion limiting components (5) is slidably mounted on the positioning mounting component (4); a drive auxiliary component (6) is threaded to the positioning mounting component (4), and the drive auxiliary component (6) is attached to the ring of insertion limiting components (5); the ring of insertion limiting components (5) is slidably inserted into the spindle component (2); a safety limiting component (7) is threaded to the drive auxiliary component (6); the safety limiting component (7) is slidably inserted into the positioning mounting component (4); the bearing mounting component (1) is bolted to a coaxial test piece (3); a positioning mounting component (4) is fixedly welded to the bearing mounting component (1), and a ... ring of insertion limiting components (5) is slidably inserted into the spindle component (2); a ring of insertion limiting components (5) is slidably inserted into the spindle component (2); a ring of insertion limiting components (5) is slidably inserted into the spindle component (2); a ring of insertion limiting components (5) is slidably inserted into the spindle component (2); a ring of insertion limiting components (5) is slidably inserted into the spindle component (2); a ring of insertion limiting components (5) is slidably inserted into the spindle component (2); a ring of insertion limiting components (5) is slidably inserted into the spindle component (2); a ring of insertion limiting components (5) The assembly (1) includes: an inner bearing ring (101), a dust seal (1011), an outer bearing ring (102), and a ball bearing support (103). The outer bearing ring (102) is provided outside the inner bearing ring (101). There are two ball bearing supports (103), which are located between the inner bearing ring (101) and the outer bearing ring (102), respectively. The inner side of the outer bearing ring (102) and the outer side of the inner bearing ring (101) are respectively provided with two ball grooves. The inner bearing ring (101) has a tapered hole inside. The dust seal (1011) is fixedly sleeved on the inner bearing ring (101). The main shaft component (2) includes: a tapered main shaft (201), an anti-detachment tapered hole (202), and a detection auxiliary ring (203); the detection auxiliary ring (203) is provided with a groove. The coaxial test piece (3) includes: a coaxial test mounting shell (301) and a bolt connection plate (3011). Two bolt connection plates (3011) are fixedly installed on the coaxial test mounting shell (301). The two bolt connection plates (3011) are respectively fixedly installed on the outer ring (102) of the bearing by bolts. The coaxial test piece (3) further includes: an adjusting bolt (302), a sliding adjusting column (303), and a trigger paddle (304). The adjusting bolt (302) is rotatably mounted on the coaxial test mounting shell (301). The sliding adjusting column (303) is a hexagonal column structure. The sliding adjusting column (303) is slidably mounted on the coaxial test mounting shell (301). The adjusting bolt (302) is threaded with the sliding adjusting column (303). The trigger paddle (304) is fixedly welded to the sliding adjusting column (303). The distance between the end of the trigger paddle (304) and the outer ring of the detection auxiliary ring (203) is one millimeter. The trigger paddle (304) is an elastic steel sheet structure. The insertion limiting component (5) includes: an insertion limiting mounting post (501) and a spring mounting ring (5011); The two ends of the insertion limiting mounting post (501) are tapered structures; the bottom end of the insertion limiting mounting post (501) is inserted into the anti-detachment tapered hole (202); The drive auxiliary component (6) includes: a drive adjustment cylinder (601), a wrench clamping protrusion (6011), and a dust cover (602). The inner end of the drive adjustment cylinder (601) has a sloping structure; the inner end of the drive adjustment cylinder (601) is attached to the top of the insertion limiting mounting post (501).

2. The tapered inner diameter double-row angular contact ball bearing according to claim 1, characterized in that, The bearing mounting component (1) further includes: bearing balls (104), the inner ring (101) of the bearing has a tapered hole; the bearing balls (104) are provided in two rings, and the two rings of bearing balls (104) are respectively rolled between the inner ring (101) and the outer ring (102) of the bearing; and a ring of bearing balls (104) is embedded in each of the two ball supports (103).

3. The tapered inner diameter double-row angular contact ball bearing according to claim 1, characterized in that, A ring of anti-detachment tapered holes (202) is provided on the tapered spindle (201); the tapered spindle (201) is slidably inserted into the inner ring (101) of the bearing; a detection auxiliary ring (203) is fixedly installed on the tapered spindle (201).

4. A tapered inner diameter double-row angular contact ball bearing according to claim 1, characterized in that, The positioning mounting component (4) includes: a positioning mounting ring (401) and a safety cone hole (4011). The positioning mounting ring (401) has a safety cone hole (4011) on it. The positioning mounting ring (401) is threaded. The positioning mounting ring (401) is fixedly welded to the bearing inner ring (101). The positioning mounting ring (401) is coaxial with the bearing inner ring (101).

5. A tapered inner diameter double-row angular contact ball bearing according to claim 4, characterized in that, The insertion limiting mounting post (501) is slidably mounted on the positioning mounting ring (401); the spring mounting ring (5011) is fixedly mounted on the insertion limiting mounting post (501); the spring mounting ring (5011) is slidably mounted on the positioning mounting ring (401).

6. A tapered inner diameter double-row angular contact ball bearing according to claim 5, characterized in that, The insertion limiting component (5) further includes: a reset spring (502), which is fixedly installed on the spring mounting ring (5011); the reset spring (502) is fitted on the insertion limiting mounting post (501).

7. A tapered inner diameter double-row angular contact ball bearing according to claim 4, characterized in that, The drive auxiliary component (6) includes: a drive adjusting cylinder (601), a wrench clamping protrusion (6011), and a dust cover (602). An octagonal convex ring is fixedly installed on the drive adjusting cylinder (601). The drive adjusting cylinder (601) is threadedly connected to the positioning mounting ring (401). The dust cover (602) is fixedly sleeved on the drive adjusting cylinder (601). The dust cover (602) is attached to the outer ring (102) of the bearing.

8. A tapered inner diameter double-row angular contact ball bearing according to claim 7, characterized in that, The safety limiting component (7) includes: a safety limiting bolt (701) and a safety conical shaft (702). The safety limiting bolt (701) is threaded onto the wrench clamping protrusion (6011). The safety limiting bolt (701) is fixedly installed on the safety limiting bolt (701), and the safety conical shaft (702) is inserted into the safety conical hole (4011).

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