Insulating bearing

Abstract

The utility model provides an insulating bearing which comprises a bearing inner ring and a bearing outer ring, at least one of the bearing inner ring and the bearing outer ring is provided with a concave part or a convex part, and the concave part or the convex part is provided with at least one of an axial limiting part and a circumferential limiting part; the bearing further comprises an insulating part, at least part of the insulating part wraps at least one of the inner circumferential wall of the bearing inner ring and the outer circumferential wall of the bearing outer ring, the insulating part is provided with a concave matching part or a convex matching part, the concave part is matched with the concave matching part in an inserted mode, and the convex part is matched with the convex part matching part in an inserted mode. At least one of the axial limiting part and the circumferential limiting part abuts against the insulating part. According to the bearing, the insulating part can block a conductive path between the bearing inner ring and the rotating shaft and / or between the bearing outer ring and the bearing seat, so that the purpose of preventing electric corrosion of the bearing is achieved; at least one of the axial limiting part and the circumferential limiting part abuts against the insulating part, the possibility that the insulating part slides is reduced as much as possible, and the structural stability of the insulating bearing is improved.

Description

Technical Field

[0001] The present application relates to the technical field of bearings, and in particular to an insulating bearing. Background Art

[0002] With the development trend of new energy electric drives towards high voltage and high switching frequency, the prevention of bearing electrical corrosion has gradually received the focus of various vehicle companies and electric drive manufacturers.

[0003] Related art bearings typically use insulating material to wrap the outer ring of the bearing. This prevents electrical corrosion by blocking the conductive path between the outer ring and the bearing seat, preventing shaft current from flowing from the inner ring to the outer ring. However, during hot operation, there is a risk of slippage between the outer ring and the insulating material. Utility Model Content

[0004] The purpose of this application is to provide an insulating bearing to prevent electrical corrosion of the bearing, and the insulating bearing has high structural stability.

[0005] To solve the above technical problems, the present application provides an insulating bearing, comprising a bearing inner ring and a bearing outer ring that are relatively rotatable, at least one of the bearing inner ring and the bearing outer ring having a recessed portion or a raised portion, and the recessed portion or the raised portion having at least one of an axial limiting portion and a circumferential limiting portion;

[0006] It also includes an insulating part, at least part of which is covered on at least one of the inner circumferential wall of the bearing inner ring and the outer circumferential wall of the bearing outer ring, and the insulating part has a recessed fitting portion or a raised fitting portion, the recessed portion and the recessed fitting portion are plug-fitted, the raised portion and the raised fitting portion are plug-fitted, and at least one of the axial limiting portion and the circumferential limiting portion conflicts with the insulating part.

[0007] In the present application, at least a portion of the insulating member is covered on at least one of the inner circumferential wall of the bearing inner ring and the outer circumferential wall of the bearing outer ring. The insulating member can block the conductive path between the bearing inner ring and the rotating shaft, and / or between the bearing outer ring and the bearing seat, thereby preventing the shaft current from passing from the bearing inner ring through the bearing outer ring, thereby achieving the purpose of preventing electrical corrosion of the bearing; at the same time, at least one of the axial limiting portion and the circumferential limiting portion conflicts with the insulating member, which can minimize the possibility of the insulating member slipping relative to the bearing inner ring or the bearing outer ring, thereby improving the structural stability of the insulating bearing.

[0008] Optionally, the recessed portion includes at least one recessed groove, which is arranged at at least one end of the bearing inner ring and / or at least one end of the bearing outer ring, and part of the insulating member is connected to the end of at least one end of the bearing inner ring and / or the bearing outer ring where the recessed groove is arranged, and the recessed groove has the circumferential limiting portion.

[0009] Optionally, the recessed portion includes at least one recessed groove, the recessed groove is provided on at least one of the inner peripheral wall of the bearing inner ring and the outer peripheral wall of the bearing outer ring, and the recessed groove has the circumferential limiting portion.

[0010] Optionally, part of the insulating members are connected to both axial ends of the bearing inner ring and / or both axial ends of the bearing outer ring.

[0011] Optionally, the recessed groove further has the axial limiting portion.

[0012] Optionally, the recessed portion further includes an annular groove, which is arranged around the inner circumferential wall of the bearing inner ring and / or the outer circumferential wall of the bearing outer ring, and the annular groove has the axial limiting portion.

[0013] Optionally, the recessed groove is a rectangular groove; or the recessed groove is an arc-shaped groove; or the recessed groove is a dovetail groove.

[0014] Optionally, the thickness of the insulating member ranges from 0.2 mm to 1.0 mm.

[0015] Optionally, the insulating part is an injection-molded part.

[0016] Optionally, the insulating member is an insulating layer formed by injection molding on the bearing inner ring and / or the bearing outer ring. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic structural diagram of a first specific embodiment of the insulating bearing provided in this application;

[0018] Figure 2 for Figure 1 Axial cross-sectional view of an insulating bearing;

[0019] Figure 3 for Figure 1 Schematic diagram of the structure of the outer ring of the insulating bearing;

[0020] Figure 4 for Figure 1 Schematic diagram of the structure of the second angle of the bearing outer ring;

[0021] Figure 5 for Figure 1 Schematic diagram of the structure of the bearing outer ring and insulating parts in the insulating bearing;

[0022] Figure 6 This is a schematic structural diagram of the outer ring of the insulating bearing in the second specific embodiment provided by this application;

[0023] Figure 7 for Figure 6 Schematic diagram of the structure of the second angle of the bearing outer ring;

[0024] Figure 8 This is a schematic structural diagram of the outer ring and insulating member of the insulating bearing in the second specific embodiment of the insulating bearing provided in this application;

[0025] Figure 9 This is a schematic structural diagram of the outer ring of the insulating bearing in the third specific embodiment provided by this application;

[0026] Figure 10 for Figure 9 Schematic diagram of the structure of the second angle of the bearing outer ring;

[0027] Figure 11 This is a schematic structural diagram of the outer ring and insulating member of the insulating bearing in the third specific embodiment of the insulating bearing provided in this application;

[0028] in, Figures 1-11 The reference numerals in the figures are as follows:

[0029] 1- bearing inner ring;

[0030] 2- bearing outer ring;

[0031] 3-Insulation;

[0032] a-depressed groove;

[0033] b-annular groove. DETAILED DESCRIPTION

[0034] In order to enable those skilled in the art to better understand the technical solution of the present application, the present application is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0035] Please refer to Figure 1 and Figure 2 , Figure 1 This is a schematic structural diagram of a first specific embodiment of the insulating bearing provided in this application; Figure 2 for Figure 1 Axial cross-section of an insulated bearing.

[0036] This embodiment provides an insulating bearing, comprising a bearing inner ring 1 and a bearing outer ring 2 that are rotatable relative to each other, at least one of the bearing inner ring 1 and the bearing outer ring 2 having a recessed portion or a raised portion, and the recessed portion or the raised portion having at least one of an axial limiting portion and a circumferential limiting portion;

[0037] It also includes an insulating part 3, at least part of which is covered on at least one of the inner circumferential wall of the bearing inner ring 1 and the outer circumferential wall of the bearing outer ring 2, and the insulating part 3 has a recessed fitting portion or a raised fitting portion, the recessed fitting portions are plug-fitted with each other, the raised portions are plug-fitted with each other, and at least one of the axial limiting portion and the circumferential limiting portion conflicts with the insulating part 3.

[0038] The recessed matching portion is a limiting protrusion that matches the recessed portion, and the protrusion matching portion is a limiting groove that matches the protrusion portion.

[0039] At least part of the insulating member 3 is covered on at least one of the inner peripheral wall of the bearing inner ring 1 and the outer peripheral wall of the bearing outer ring 2. There are three specific implementation methods:

[0040] In the first embodiment, at least part of the insulating part 3 is covered on the inner circumferential wall of the bearing inner ring 1. The insulating part 3 can block the conductive path between the bearing inner ring 1 and the rotating shaft, preventing the shaft current from passing from the bearing inner ring 1 through the bearing outer ring 2, thereby preventing electrical corrosion of the bearing.

[0041] In the second embodiment, at least part of the insulating part 3 is covered on the outer peripheral wall of the bearing outer ring 2. The insulating part 3 can block the conductive path between the bearing outer ring 2 and the bearing seat, preventing the shaft current from passing from the bearing inner ring 1 through the bearing outer ring 2, thereby achieving the purpose of preventing electrical corrosion of the bearing.

[0042] In the third embodiment, at least part of the insulating part 3 is covered on the inner circumferential wall of the bearing inner ring 1 and the outer circumferential wall of the bearing outer ring 2. The insulating part 3 covered on the outer circumferential wall of the bearing outer ring 2 can block the conductive path between the bearing outer ring 2 and the bearing seat, and the insulating part 3 covered on the inner circumferential wall of the bearing inner ring 1 can block the conductive path between the bearing inner ring 1 and the rotating shaft, thereby preventing the shaft current from passing from the bearing inner ring 1 through the bearing outer ring 2, thereby achieving the purpose of preventing bearing electrical corrosion.

[0043] Taking the example of at least a portion of the insulating member 3 covering the outer peripheral wall of the bearing outer ring 2 and the bearing outer ring having a recessed portion, the recessed portion has at least one of an axial limiting portion and a circumferential limiting portion, and the insulating member 3 has a recessed matching portion. The recessed portion and the recessed matching portion are plug-fitted together, and at least one of the axial limiting portion and the circumferential limiting portion conflicts with the insulating member 3. Specifically, there are three implementation methods:

[0044] In the first embodiment, the recessed portion has an axial limiting portion, the recessed portion and the recessed matching portion are plug-fitted together, and the axial limiting portion and the insulating part 3 are in conflict with each other, thereby achieving axial limiting of the insulating part 3 and the bearing outer ring 2, reducing the possibility of axial slippage between the insulating part 3 and the bearing outer ring 2 as much as possible, and improving the structural stability of the insulating bearing.

[0045] In the second embodiment, the recessed portion has a circumferential limiting portion, the recessed portion and the recessed matching portion are plug-fitted together, and the circumferential limiting portion and the insulating part 3 are in conflict with each other, thereby achieving circumferential limiting of the insulating part 3 and the bearing outer ring 2, reducing the possibility of circumferential slippage between the insulating part 3 and the bearing outer ring 2 as much as possible, and improving the structural stability of the insulating bearing.

[0046] In the third embodiment, the recessed portion has an axial limiting portion and a circumferential limiting portion, the recessed portion and the recessed matching portion are plug-fitted together, the axial limiting portion and the insulating part 3 are in conflict with each other, and the circumferential limiting portion and the insulating part 3 are in conflict with each other, thereby achieving the circumferential and axial limiting of the insulating part 3 and the bearing outer ring 2 at the same time, reducing the possibility of circumferential slip and axial slip between the insulating part 3 and the bearing outer ring 2 as much as possible, and improving the structural stability of the insulating bearing.

[0047] It can be seen from this that the three implementation methods of the above recessed portion can reduce the possibility of slippage between the insulating part 3 and the bearing outer ring 2, and improve the structural stability of the insulating bearing; and the third implementation method can simultaneously achieve circumferential limitation and axial limitation of the insulating part 3 and the bearing outer ring 2, thereby minimizing the possibility of slippage between the insulating part 3 and the bearing outer ring 2, and maximizing the structural stability of the insulating bearing, which is a more preferred technical solution.

[0048] It can be understood that when at least part of the insulating part 3 is covered on the inner circumferential wall of the bearing inner ring 1 or at least part of the insulating part 3 is covered on the inner circumferential wall of the bearing inner ring 1 and the outer circumferential wall of the bearing outer ring 2, the implementation method of the recessed portion is similar to the implementation method of the recessed portion when at least part of the insulating part 3 is covered on the outer circumferential wall of the bearing outer ring 2, and both include the above three implementation methods, which will not be repeated here.

[0049] It can be understood that at least one of the bearing inner ring 1 and the bearing outer ring 2 has a protrusion, or at least one of the bearing inner ring 1 and the bearing outer ring 2 has a recess, the implementation method is the same, and the following description is based on the example of at least one of the bearing inner ring 1 and the bearing outer ring 2 having a recess.

[0050] Please continue to refer to Figure 3-Figure 5 , Figure 3 for Figure 1 Schematic diagram of the structure of the outer ring of the insulating bearing; Figure 4 for Figure 1 Schematic diagram of the structure of the second angle of the bearing outer ring; Figure 5 for Figure 1 Schematic diagram of the structure of the bearing outer ring and insulating parts in an insulated bearing.

[0051] In this embodiment, the recessed portion includes at least one recessed groove a, which is arranged at at least one end of the bearing inner ring 1 and / or at least one end of the bearing outer ring 2, and a portion of the insulating member 3 is connected to at least one end of the bearing inner ring 1 and / or the bearing outer ring 2 where the recessed groove a is arranged, and the recessed groove a has the aforementioned circumferential limiting portion.

[0052] Taking the case where the recessed groove a is provided at one end of the bearing outer ring 2 as an example, the recessed groove a has a circumferential limiting portion, and the insulating member 3 is connected to the end of the bearing outer ring 2 where the recessed groove a is provided. At this time, the insulating member 3 and the bearing outer ring 2 can achieve circumferential limiting, thereby minimizing the possibility of circumferential slippage between the insulating member 3 and the bearing outer ring 2, thereby improving the structural stability of the insulating bearing; at the same time, the recessed groove a is provided at the end of the bearing outer ring 2, and the processing of the recessed groove a is more convenient, which is beneficial to improving the processing efficiency of the insulating bearing of this embodiment; in addition, the recessed groove a is provided at the end of the bearing outer ring 2, and the recessed groove a can also be used as a pouring gate for injection molding of insulating materials to reduce the injection molding pressure, which is more beneficial to the manufacturing process.

[0053] Furthermore, part of the insulating member 3 is connected to both axial ends of the bearing inner ring 1 and / or both axial ends of the bearing outer ring 2 .

[0054] Taking the example of partial insulation parts 3 connected to the axial ends of the bearing outer ring 2, in this embodiment, partial insulation parts 3 are filled in the interior of the recessed groove a and conflict with the circumferential limiting portion, which can realize the circumferential limitation of the insulation parts 3 and the bearing outer ring 2. Partial insulation parts 3 are connected to the axial ends of the bearing outer ring 2. The insulation parts 3 can better wrap the bearing outer ring 2 and realize the axial limitation of the insulation parts 3 and the bearing outer ring 2, thereby reducing the possibility of circumferential and axial slippage between the insulation parts 3 and the bearing outer ring 2 as much as possible, further increasing the bonding force between the insulation parts 3 and the bearing outer ring 2, and further improving the structural stability of the insulating bearing.

[0055] In some embodiments of the present application, the bearing outer ring 2 may be provided with a recessed groove a at only one end, and part of the insulating part 3 is connected to the two axial ends of the bearing outer ring 2. While achieving axial and circumferential limitation of the insulating part 3 and the bearing outer ring 2 and improving the structural stability of the insulating bearing, it simplifies the processing technology of the insulating bearing of this embodiment and improves the processing efficiency of the insulating bearing of this embodiment.

[0056] Depend on Figure 4 It can be seen that in this embodiment, the number of recessed grooves a is four, and they are distributed at intervals along the circumference of the bearing outer ring 2, which can increase the bonding force between the insulating part 3 and the bearing outer ring 2, improve the connection strength between the insulating part 3 and the bearing outer ring 2, and ensure the connection reliability between the insulating part 3 and the bearing outer ring 2.

[0057] In practice, there is no limit to the number of recessed grooves a. The number of recessed grooves a can be adaptively designed according to the actual connection state between the insulating member 3 and the bearing outer ring 2. The number of recessed grooves a can be at least one.

[0058] In some other embodiments of the present application, the recessed portion includes at least one recessed groove a, which is arranged on the inner circumferential wall of the bearing inner ring 1 and / or the outer circumferential wall of the bearing outer ring 2, and the recessed groove a has the aforementioned circumferential limiting portion.

[0059] Taking the recessed groove a provided on the outer peripheral wall of the bearing outer ring 2 as an example, the recessed groove a has a circumferential limiting portion, and the insulating member 3 is covered on the outer peripheral wall of the bearing outer ring 2 and partially filled in the interior of the recessed groove a. At this time, the insulating member 3 and the bearing outer ring 2 can achieve circumferential limiting, thereby minimizing the possibility of circumferential slippage between the insulating member 3 and the bearing outer ring 2, thereby improving the structural stability of the insulating bearing; at the same time, the recessed groove a is provided on the outer peripheral wall of the bearing outer ring 2, and the end of the bearing outer ring 2 does not need to be connected to the insulating member 3, which can simplify the injection molding process of the insulating member 3, save injection molding materials, and reduce material costs.

[0060] The recessed groove a is provided on the outer peripheral wall of the bearing outer ring 2 and has a circumferential limit portion. There are many specific implementation methods, such as:

[0061] In the first implementation, the recessed groove a can extend along the axial direction of the bearing outer ring 2 and penetrate the axial end walls of the bearing outer ring 2. This structural form of the recessed groove a is conducive to improving the processing convenience of the recessed groove a and improving the processing efficiency of the insulating bearing of this embodiment.

[0062] In the second implementation method, the recessed groove a can extend along the axial direction of the bearing outer ring 2, and the two ends of the extension direction of the recessed groove a are closed ends. At this time, the recessed groove a has an axial limiting portion and a circumferential limiting portion. The insulating part 3 and the bearing outer ring 2 can simultaneously achieve circumferential limiting and circumferential limiting, thereby reducing the possibility of circumferential slippage and axial slippage of the insulating part 3 and the bearing outer ring 2 as much as possible, and further improving the structural stability of the insulating bearing.

[0063] In the third implementation method, the recessed groove a can extend along the circumference of the bearing outer ring 2, and the two ends of the extension direction of the recessed groove a are closed ends. At this time, the recessed groove a also has an axial limiting portion and a circumferential limiting portion. The insulating part 3 and the bearing outer ring 2 can simultaneously achieve circumferential limiting and circumferential limiting, thereby reducing the possibility of circumferential slippage and axial slippage of the insulating part 3 and the bearing outer ring 2 as much as possible, and further improving the structural stability of the insulating bearing.

[0064] Please continue to refer to Figures 6-11 , Figure 6 This is a schematic structural diagram of the outer ring of the insulating bearing in the second specific embodiment provided by this application; Figure 7 for Figure 6 Schematic diagram of the structure of the second angle of the bearing outer ring; Figure 8 This is a schematic structural diagram of the outer ring and insulating member of the insulating bearing in the second specific embodiment of the insulating bearing provided in this application; Figure 9 This is a schematic structural diagram of the outer ring of the insulating bearing in the third specific embodiment provided by this application; Figure 10 for Figure 9 Schematic diagram of the structure of the second angle of the bearing outer ring; Figure 11 This is a schematic structural diagram of the bearing outer ring and insulating component in the third specific embodiment of the insulating bearing provided in this application.

[0065] In some embodiments of the present application, Figure 6 As shown, the recessed portion further includes an annular groove b, which is arranged around the inner circumferential wall of the bearing inner ring 1 and / or the outer circumferential wall of the bearing outer ring 2, and has an axial limiting portion.

[0066] Taking the recessed groove a set on the bearing outer ring 2 as an example, as set above, part of the insulating part 3 is located inside the recessed groove a and conflicts with the circumferential limiting portion, which can achieve circumferential limitation of the insulating part 3 and the bearing outer ring 2; part of the insulating part 3 is located inside the annular groove b and conflicts with the axial limiting portion, which can achieve axial limitation of the insulating part 3 and the bearing outer ring 2. In this way, the possibility of circumferential and axial slippage between the insulating part 3 and the bearing outer ring 2 is reduced as much as possible, further increasing the bonding force between the insulating part 3 and the bearing outer ring 2, and further improving the structural stability of the insulating bearing.

[0067] In addition, the annular groove b is an integrated structure, which is more convenient to process. The insulating member 3 and the bearing outer ring 2 are in a combined state along the circumferential direction, which is beneficial to improving the connection reliability between the insulating member 3 and the bearing outer ring 2.

[0068] like Figure 3 As shown, in this embodiment, the recessed groove a is a rectangular groove with a simple structure and is easy to process.

[0069] like Figure 6 As shown, in this embodiment, the recessed groove a is an arc-shaped groove with a simple structure and is easy to process.

[0070] like Figure 9 As shown, in this embodiment, the recessed groove a is a dovetail groove. A dovetail groove is a structure in which the groove opening is narrower than the groove bottom. Setting the recessed groove a as a dovetail groove structure is beneficial to improving the connection reliability between the recessed groove a and the insulating member 3.

[0071] In this embodiment, the thickness of the insulating member 3 is in the range of 0.2 mm to 1.0 mm.

[0072] The thickness of the insulating member 3 can be 0.2 mm, 0.5 mm, 0.7 mm, 1.0 mm, etc. The above configuration can improve the technical effect of preventing electrical corrosion in the insulated bearing of this embodiment, and the insulating member 3 is less likely to crack or fall off due to external force, thereby increasing the service life of the insulated bearing of this embodiment and improving operability in transportation, circulation, and assembly.

[0073] In addition, in this embodiment, the insulating part 3 is an injection-molded part, that is, it is connected to the bearing inner ring 1 and / or the bearing outer ring 2 using an injection molding process, which makes it easier to mold the insulating part 3 and can improve the connection strength between the insulating part 3 and the bearing inner ring 1, and the insulating part 3 and the bearing outer ring 2, thereby improving the structural stability of the insulating bearing in this embodiment.

[0074] In this embodiment, the insulating part 3 is an insulating layer formed by injection molding on the bearing inner ring 1 and / or the bearing outer ring 2, which facilitates the molding of the insulating part 3 and improves the connection strength between the insulating part 3 and the bearing inner ring 1, and the insulating part 3 and the bearing outer ring 2.

[0075] In addition, in this embodiment, the insulating member 3 is made of any one of polyaryletherketone, polyetheretherketone, polyetherketoneketone, polyetheretherketoneketone, and polyetherketoneetherketoneketone. These materials have advantages such as excellent heat resistance, wear resistance, impact resistance, oil resistance, creep resistance, and dimensional stability, thereby improving the performance and extending the service life of the insulating member 3 of this embodiment.

[0076] The above is only a preferred embodiment of the present application. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present application. These improvements and modifications should also be regarded as the scope of protection of the present application.

Claims

1. An insulating bearing, characterized in that: The invention comprises a bearing inner ring (1) and a bearing outer ring (2) which are relatively rotatable, wherein at least one of the bearing inner ring (1) and the bearing outer ring (2) has a recessed portion or a raised portion, and the recessed portion or the raised portion has at least one of an axial limiting portion and a circumferential limiting portion; The invention also includes an insulating member (3), at least a portion of which is covered on at least one of the inner peripheral wall of the bearing inner ring (1) and the outer peripheral wall of the bearing outer ring (2), and the insulating member (3) has a recessed fitting portion or a raised fitting portion, the recessed portion and the recessed fitting portion are plug-fitted, the raised portion and the raised fitting portion are plug-fitted, and at least one of the axial limiting portion and the circumferential limiting portion is in conflict with the insulating member (3).

2. The insulating bearing according to claim 1, wherein: The recessed portion includes at least one recessed groove (a), the recessed groove (a) being arranged at at least one end of the bearing inner ring (1) and / or at least one end of the bearing outer ring (2), a portion of the insulating member (3) being connected to at least one end of the bearing inner ring (1) and / or the bearing outer ring (2) where the recessed groove (a) is arranged, and the recessed groove (a) has the circumferential limiting portion.

3. The insulating bearing according to claim 1, wherein: The recessed portion includes at least one recessed groove (a), the recessed groove (a) being arranged on at least one of the inner peripheral wall of the bearing inner ring (1) and the outer peripheral wall of the bearing outer ring (2), and the recessed groove (a) having the circumferential limiting portion.

4. The insulating bearing according to claim 2 or 3, characterized in that: Part of the insulating member (3) is connected to both axial ends of the bearing inner ring (1) and / or both axial ends of the bearing outer ring (2).

5. The insulating bearing according to claim 3, characterized in that The recessed groove (a) further comprises the axial limiting portion.

6. The insulating bearing according to claim 2, characterized in that The recessed portion further comprises an annular groove (b), the annular groove (b) being arranged around the inner peripheral wall of the bearing inner ring (1) and / or the outer peripheral wall of the bearing outer ring (2), and the annular groove (b) having the axial limiting portion.

7. The insulating bearing according to claim 2 or 3, characterized in that: The recessed groove (a) is a rectangular groove; or the recessed groove (a) is an arc-shaped groove; or the recessed groove (a) is a dovetail groove.

8. The insulating bearing according to claim 2 or 3, characterized in that: The thickness of the insulating member (3) ranges from 0.2 mm to 1.0 mm.

9. The insulating bearing according to any one of claims 1 to 3, characterized in that: The insulating part (3) is an injection molded part.

10. The insulating bearing according to any one of claims 1 to 3, characterized in that: The insulating member (3) is an insulating layer formed by injection molding on the bearing inner ring (1) and / or the bearing outer ring (2).

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