Pressure-resistant and high-wear-resistant bearing ring

Abstract

The invention relates to the technical field of bearings, and discloses a compression-resistant high-wear-resistant bearing ring which comprises an outer ring, a supporting ring is arranged in the outer ring, a connecting plate is fixedly connected to the outer portion of the supporting ring, a first connecting column is fixedly connected to the outer wall of the connecting plate, and a connecting shaft is rotationally connected to the outer wall of the first connecting column. A connecting block is fixedly connected to the outer wall of the connecting shaft, a sleeve is rotatably connected to the outer wall of the connecting block, a supporting shaft is slidably connected to the interior of the sleeve, the outer wall of the supporting shaft is fixedly connected to the interior of the outer ring, a second spring is slidably connected to the outer wall of the supporting shaft, and the two ends of the second spring are fixedly connected to the outer wall of the sleeve; and a buffer assembly is arranged on the outer wall of the connecting plate. The second spring is compressed to buffer shaking of the supporting ring through the sleeve under supporting of the supporting shaft, so that friction and abrasion are reduced, contact of the bearing during operation is more uniform, the risk of local overload is reduced, and the service life of the bearing and the service life of a ferrule of the bearing are prolonged.

Description

Technical Field

[0001] The invention relates to the technical field of bearings, in particular to a pressure-resistant and highly wear-resistant bearing ring. Background Art

[0002] With the rapid development of industrial technology, various types of mechanical equipment have continuously improved the performance requirements of bearings, especially in equipment working under heavy load, high speed, impact and complex working conditions. The performance of the bearing ring, the core component of the bearing, directly affects the reliability and service life of the entire bearing and the operating efficiency of the equipment.

[0003] Traditional bearing rings lack a buffer design. Under high-speed operation or heavy load conditions, micro-shaking is likely to occur between different layers of the outer ring, causing vibration and impact. This unstable state will further aggravate friction and wear, and reduce the service life of the bearing. Summary of the invention

[0004] In view of the deficiencies in the prior art, the present invention provides a pressure-resistant and highly wear-resistant bearing ring, which solves the problem that traditional bearing rings lack a buffer design and are prone to micro-shaking between different layers of the outer rings under high-speed operation or heavy load conditions.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solutions: a pressure-resistant and high-wear-resistant bearing ring, comprising an outer ring, a support ring is arranged inside the outer ring, a connecting plate is fixedly connected to the outside of the support ring, a connecting column 1 is fixedly connected to the outer wall of the connecting plate, a connecting shaft is rotatably connected to the outer wall of the connecting column 1, a connecting block is fixedly connected to the outer wall of the connecting shaft, a sleeve is rotatably connected to the outer wall of the connecting block, a support shaft is slidably connected to the inside of the sleeve, the outer wall of the support shaft is fixedly connected to the inside of the outer ring, a spring 2 is slidably connected to the outer wall of the support shaft, both ends of the spring 2 are fixedly connected to the outer wall of the sleeve, and a buffer assembly is arranged on the outer wall of the connecting plate.

[0006] Preferably, the support ring includes an outer layer, the outer part of the outer layer is arranged inside the outer ring, the inner part of the outer layer is fixedly connected to the functional layer, the inner part of the functional layer is fixedly connected to the buffer layer, and the inner part of the buffer layer is fixedly connected to the inner layer.

[0007] Preferably, the outer layer is made of high-carbon chromium bearing steel, the functional layer is made of alloy steel, the buffer layer is made of high-toughness steel, and the inner layer is made of low-carbon steel.

[0008] Preferably, the buffer assembly includes a second connecting column, an outer wall of which is fixedly connected to an outer wall of a connecting plate, a first spring is disposed on the outer wall of the second connecting column, and an outer wall of the first spring is disposed on an outer wall of a support shaft.

[0009] Preferably, the exterior of the outer ring is coated with a diamond-like coating.

[0010] Preferably, a process for manufacturing a pressure-resistant and wear-resistant bearing ring comprises the following steps:

[0011] Step 1: Raw material preparation

[0012] Select high carbon chromium bearing steel, alloy steel, spring steel and low carbon steel as raw materials;

[0013] Step 2: Forging or Casting

[0014] The outer ring, support ring, buffer layer and support layer materials are initially formed using a forging process.

[0015] The outer ring and support ring need to be formed into preliminary outlines by precision forging or die forging according to the size and shape of the bearing ring; the buffer layer and support layer need to be made into the required shape by casting or forging process;

[0016] Step 3: Heat treatment

[0017] The outer ring needs surface carburizing or high-frequency quenching to increase the surface hardness, and tempering to improve the internal toughness of the material;

[0018] The support ring needs to be normalized or quenched and tempered for alloy steel;

[0019] The buffer layer is annealed;

[0020] The support layer is normalized or annealed;

[0021] Step 4: Finishing

[0022] Use CNC lathes and milling machines to perform precision machining on each layer of the bearing ring;

[0023] Step 5: Surface Preparation

[0024] The outer ring surface is coated with diamond-like carbon or TiN;

[0025] The surface of the support ring is nitrided or chromium coated;

[0026] The buffer layer and the supporting layer are galvanized or chrome-plated.

[0027] Preferably, in step 1, the carbon content of the high carbon chromium bearing steel is 0.95%-1.05%, and the chromium content is 1.50%-1.70%;

[0028] Alloy steel has a carbon content of 0.38%-0.45%, a chromium content of 0.90%-1.20%, and a molybdenum content of 0.15%-0.30%;

[0029] The carbon content of spring steel is 0.50%-0.80%, and the silicon content is 1.50%-2.00%;

[0030] Mild steel has a carbon content of 0.10%-0.25%.

[0031] Preferably, in step 3, the carburizing treatment of the outer ring needs to be heated to 850°C-950°C for 1-3 hours, and then high-frequency quenching is performed; tempering is heated to 150°C-180°C for 1-2 hours;

[0032] The normalizing treatment of the support ring needs to be heated to 900℃-950℃ and cooled naturally; the quenching and tempering treatment needs to be heated to 850℃-900℃, quenched, and the tempering temperature is 500℃-550℃;

[0033] Annealing of the buffer layer requires heating to 600°C-700°C and then furnace cooling;

[0034] Normalizing of the support layer requires heating to 850°C-900°C and then air cooling.

[0035] Preferably, in step 5, the coating thickness of the diamond-like coating of the outer ring is 1μm-3μm or the thickness of the TiN coating is controlled at 2μm-4μm, the nitriding temperature of the support ring nitriding treatment is 500℃-550℃, the depth of the nitriding layer is 0.2mm-0.5mm, and the coating thickness of the buffer layer and the support layer is controlled at 5μm-10μm.

[0036] Working principle: When the bearing rotates, it will cause the support ring to shake, and when the support ring shakes, it will drive the connecting plate to shake, and when the connecting plate shakes, it will drive the connecting column 1 to shake, and when the connecting column 1 shakes, it will drive the connecting shaft to shake inside the connecting column 1, and at the same time, the connecting shaft will drive the connecting block to rotate inside the sleeve, and when the connecting block rotates inside the sleeve, it will push the sleeve to slide, and when the sleeve slides under the support of the support shaft, it will compress the spring 2 to buffer the shaking of the support ring;

[0037] At the same time, when the connecting plate shakes, it will drive the connecting column 2 to compress or pull the spring 1, thereby strengthening the buffering of the support ring.

[0038] The present invention provides a high-pressure and wear-resistant bearing ring. It has the following beneficial effects:

[0039] 1. The present invention uses a sleeve to compress the spring 2 under the support of the support shaft to buffer the shaking of the support ring, thereby reducing friction and wear, making the contact of the bearing more uniform during operation, reducing the risk of local overload, and thus extending the service life of the bearing and its ring.

[0040] 2. The present invention provides high hardness and wear resistance through the outer layer, effectively bears high loads, prevents external wear, enhances the overall rigidity and strength of the bearing, and extends its service life; the functional layer has high fatigue resistance, can disperse and transfer loads, reduce stress concentration, improve structural stability, adapt to complex load conditions, and prevent fatigue failure; the buffer layer provides vibration and impact buffering, absorbs vibration and impact force during bearing operation, reduces support ring shaking, improves operation stability, and reduces noise and vibration; the inner layer ensures precise contact with the rolling element, reduces the friction coefficient, reduces wear and energy consumption, ensures a smooth and efficient rolling process, and extends the life of the bearing.

[0041] 3. The present invention compresses or pulls the spring one through the connecting column two, thereby strengthening the buffering of the support ring, cooperating with the stabilizing effect of the buffer layer, improving the contact state of the rolling body, and reducing friction loss and heat generation.

[0042] 4. The diamond-like coating (DLC) of the present invention has extremely high hardness, which is much higher than the hardness of traditional bearing materials such as high-carbon chromium bearing steel, greatly improving the wear resistance of the outer ring surface and effectively extending the service life of the bearing under high-load and high-frequency operating conditions. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] Figure 1 A three-dimensional diagram of a pressure-resistant and high-wear-resistant bearing ring of the present invention;

[0044] Figure 2 It is a schematic cross-sectional view of the inner structure of the outer ring of the present invention;

[0045] Figure 3 It is a schematic diagram of the local structure of the spring 2 of the present invention;

[0046] Figure 4 It is a schematic diagram of a partial structure of a spring of the present invention;

[0047] Figure 5 It is a cross-sectional schematic diagram of the internal structure of the support ring of the present invention;

[0048] Figure 6 The present invention is a flowchart of a method for manufacturing a pressure-resistant and high-wear-resistant bearing ring.

[0049] Among them, 1. outer ring; 2. support ring; 201. outer layer; 202. functional layer; 203. buffer layer; 204. inner layer; 3. support shaft; 4. sleeve; 5. connecting block; 6. connecting shaft; 7. connecting column one; 8. connecting plate; 9. buffer assembly; 901. spring one; 902. connecting column two; 10. diamond-like coating; 11. spring two. DETAILED DESCRIPTION

[0050] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0051] Please see attached Figure 1 -Attached Figure 4 The embodiment of the present invention provides a high-pressure and wear-resistant bearing ring, including an outer ring 1, a support ring 2 is arranged inside the outer ring 1, a connecting plate 8 is fixedly connected to the outside of the support ring 2, a connecting column 7 is fixedly connected to the outer wall of the connecting plate 8, a connecting shaft 6 is rotatably connected to the outer wall of the connecting shaft 6, a connecting block 5 is fixedly connected to the outer wall of the connecting block 5, a sleeve 4 is rotatably connected to the inner part of the sleeve 4, a support shaft 3 is slidably connected to the inner part of the sleeve 4, the outer wall of the support shaft 3 is fixedly connected to the inner part of the outer ring 1, a spring 11 is slidably connected to the outer wall of the support shaft 3, both ends of the spring 11 are fixedly connected to the outer wall of the sleeve 4, and a buffer component 9 is arranged on the outer wall of the connecting plate 8.

[0052] Specifically, the bearing is installed inside the support ring 2. Since the bearing rotates when in use, the support ring 2 will shake when the bearing rotates. When the support ring 2 shakes, the connecting plate 8 will shake. When the connecting plate 8 shakes, the connecting column 7 will shake. When the connecting column 7 shakes, the connecting shaft 6 will shake inside the connecting column 7. At the same time, the connecting shaft 6 will drive the connecting block 5 to rotate inside the sleeve 4. When the connecting block 5 rotates inside the sleeve 4, it will push the sleeve 4 to slide. When the sleeve 4 slides under the support of the support shaft 3, the spring 2 11 will be compressed to buffer the shaking of the support ring 2. The shaking of the support ring usually leads to uneven load distribution, which will cause excessive wear in local areas. The buffer design can help reduce or eliminate the shaking of the support ring, ensure uniform load distribution, and thus reduce friction and wear. The contact of the bearing during operation is more uniform, reducing the risk of local overload, thereby extending the service life of the bearing and its ring.

[0053] Please see attached Figure 5 The support ring 2 includes an outer layer 201 , the outer portion of the outer layer 201 is arranged inside the outer ring 1 , the inner portion of the outer layer 201 is fixedly connected with a functional layer 202 , the inner portion of the functional layer 202 is fixedly connected with a buffer layer 203 , and the inner portion of the buffer layer 203 is fixedly connected with an inner layer 204 .

[0054] The material of the outer layer 201 is high carbon chromium bearing steel.

[0055] The material of the functional layer 202 is alloy steel.

[0056] The material of the buffer layer 203 is high-toughness steel.

[0057] The material of the inner layer 204 is low carbon steel.

[0058] Specifically, the bearing support ring is designed with four layers of materials, each layer of material has its own function, and through mutual synergy, the overall performance of the bearing is significantly improved. The specific beneficial effects are summarized as follows:

[0059] Outer layer 201 (high carbon chromium bearing steel)

[0060] High hardness and wear resistance: The surface hardness of high carbon chromium bearing steel can reach HRC60-65, providing excellent wear resistance, effectively resisting the wear caused by external loads, and ensuring that the support ring remains stable under long-term working conditions.

[0061] High load-bearing capacity: The outer layer material has high strength and compressive resistance, which can effectively withstand external axial and radial loads, reduce deformation risks, and improve bearing reliability.

[0062] Extended service life: The combination of high hardness and high wear resistance enables the outer layer to effectively resist abrasive wear and surface fatigue, thereby increasing the service life of the bearing and making it suitable for heavy-load conditions.

[0063] Functional layer 202 (alloy steel)

[0064] High fatigue resistance: Alloy steel has good strength and toughness, can effectively disperse and transfer the load transmitted by the outer layer, avoid stress concentration, and improve the fatigue resistance of the bearing. It is especially suitable for use under high load and continuous operation working conditions.

[0065] Improve structural stability: As an intermediate transition layer, the functional layer helps to enhance the overall rigidity of the bearing ring and prevent the internal structure of the ring from becoming unstable or cracking due to load impact.

[0066] Adapt to complex loads: It can evenly distribute loads under complex working conditions and reduce local overloads, thereby effectively avoiding premature fatigue failure due to stress concentration.

[0067] Buffer layer 203 (high toughness steel)

[0068] Absorb vibration and impact: The buffer layer material is high-toughness steel, which has excellent shock absorption and buffering capabilities. It can effectively absorb the impact load and vibration generated during the operation of the bearing, and reduce the shaking and impact wear of the bearing during operation.

[0069] Improve running stability: The design of the buffer layer enables the bearing to show higher stability during high-speed operation, reducing vibration and noise, and is particularly suitable for precision equipment with high requirements for stability.

[0070] Protect the internal structure: The buffer layer can play a role of transition buffer, reduce the stress difference between the outer layer and the inner layer, and effectively reduce the risk of crack propagation in the internal material due to load impact.

[0071] Inner layer 204 (mild carbon steel)

[0072] Good matching performance: Low carbon steel, as the layer in direct contact with the rolling elements (such as steel balls), has good machining performance, ensuring a high surface finish (Ra0.2-0.4μm), achieving precise matching with the rolling elements and reducing friction resistance.

[0073] Reduce friction and wear: When the inner surface contacts the steel ball, it can effectively reduce the friction coefficient, reduce energy loss, reduce the generation of frictional heat, and delay surface wear.

[0074] Enhance surface load-bearing capacity: Although low-carbon steel has a low hardness, surface treatment (such as nitriding or plating) can improve the hardness and wear resistance of the contact area to ensure that it does not suffer local indentation or fatigue damage under high load conditions.

[0075] Stable operation: Good contact ensures smoother rolling between the steel ball and the support ring, reduces vibration and noise during operation, and improves the overall working efficiency of the bearing.

[0076] Please refer to the attached Figure 1 The buffer assembly 9 includes a second connecting column 902 , the outer wall of which is fixedly connected to the outer wall of the connecting plate 8 , the outer wall of which is provided with a spring 901 , and the outer wall of the spring 901 is provided on the outer wall of the support shaft 3 .

[0077] Specifically, when the connecting plate 8 shakes, it drives the connecting column 2 902 to compress or pull the spring 1 901, thereby strengthening the buffering of the support ring 2. The shaking of the support ring 2 will cause uneven contact between the rolling body and the support ring, increase local friction, and generate additional heat. The spring 1 901 cooperates with the stabilizing effect of the buffer layer 203 to reduce the micro-motion of the support ring, improve the contact state of the rolling body, and reduce friction loss and heat generation.

[0078] The outer portion of the outer ring 1 is coated with a diamond-like coating 10 .

[0079] Specifically, diamond-like coating (DLC) has extremely high hardness, close to that of natural diamond (hardness reaches about HV3000), which is much higher than the hardness of traditional bearing materials such as high-carbon chromium bearing steel. Under high-load and high-frequency operating conditions, it can extend the service life of bearings.

[0080] Please refer to the attached Figure 6 , a manufacturing process for a pressure-resistant and wear-resistant bearing ring, comprising the following steps:

[0081] Step 1: Raw material preparation

[0082] Select high carbon chromium bearing steel, alloy steel, spring steel and low carbon steel as raw materials;

[0083] Step 2: Forging or Casting

[0084] The outer ring, support ring, buffer layer and support layer materials are initially formed using a forging process.

[0085] The outer ring and support ring need to be formed into preliminary outlines by precision forging or die forging according to the size and shape of the bearing ring; the buffer layer and support layer need to be made into the required shape by casting or forging process;

[0086] Step 3: Heat treatment

[0087] The outer ring needs surface carburizing or high-frequency quenching to increase the surface hardness, and tempering to improve the internal toughness of the material;

[0088] The support ring needs to be normalized or quenched and tempered for alloy steel;

[0089] The buffer layer is annealed;

[0090] The support layer is normalized or annealed;

[0091] Step 4: Finishing

[0092] Use CNC lathes and milling machines to perform precision machining on each layer of the bearing ring;

[0093] Step 5: Surface Preparation

[0094] The outer ring surface is coated with diamond-like carbon or TiN;

[0095] The surface of the support ring is nitrided or chromium coated;

[0096] The buffer layer and the supporting layer are galvanized or chrome-plated.

[0097] In step 1, the carbon content of the high carbon chromium bearing steel is 0.95%-1.05%, and the chromium content is 1.50%-1.70%;

[0098] Alloy steel has a carbon content of 0.38%-0.45%, a chromium content of 0.90%-1.20%, and a molybdenum content of 0.15%-0.30%;

[0099] The carbon content of spring steel is 0.50%-0.80%, and the silicon content is 1.50%-2.00%;

[0100] Low carbon steel has a carbon content of 0.10%-0.25%;

[0101] In step 3, the carburizing treatment of the outer ring needs to be heated to 850°C-950°C for 1-3 hours, and then high-frequency quenching is performed; tempering is heated to 150°C-180°C for 1-2 hours;

[0102] The normalizing treatment of the support ring needs to be heated to 900℃-950℃ and cooled naturally; the quenching and tempering treatment needs to be heated to 850℃-900℃, quenched, and the tempering temperature is 500℃-550℃;

[0103] Annealing of the buffer layer requires heating to 600°C-700°C and then furnace cooling;

[0104] Normalizing of the support layer requires heating to 850°C-900°C and then air cooling;

[0105] In step 5, the coating thickness of the diamond-like coating of the outer ring is 1μm-3μm or the thickness of the TiN coating is controlled at 2μm-4μm, the nitriding temperature of the support ring nitriding treatment is 500℃-550℃, the depth of the nitriding layer is 0.2mm-0.5mm, and the coating thickness of the buffer layer and the support layer is controlled at 5μm-10μm.

[0106] Specifically, the outer ring with DLC coating or TiN coating and the support ring with nitriding treatment significantly improve the wear resistance of the bearing ring. The coating can effectively reduce friction and wear and extend the service life of the bearing. This enables the bearing to maintain long-term efficient operation under high-speed and heavy-load conditions, reduce replacement frequency, and reduce maintenance costs.

[0107] The use of GCr15 steel and 42CrMo alloy steel, and high-quality heat treatment processes (such as carburizing and tempering) can make the bearing rings have extremely high compressive strength and load-bearing capacity. Even under high loads and impact loads, the bearings can still maintain good working conditions, reducing the risk of damage caused by overload.

[0108] Through precisely controlled heat treatment processes such as tempering, normalizing and quenching and tempering, the fatigue resistance of bearing rings has been significantly improved. This means that bearings can maintain stable working performance under long-term cyclic loads and prevent premature failure due to fatigue damage, especially for high load and high frequency operation conditions.

[0109] Surface treatment of the buffer layer and the support layer (such as galvanizing or chrome plating) can significantly improve the corrosion resistance of the bearing rings. Especially in harsh environments, such as corrosive environments such as moisture, chemicals or seawater, the corrosion resistance of the bearing will extend its service life and ensure its long-term stable operation.

[0110] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A high-wear-resistant bearing ring, comprising an outer ring (1), characterized in that: A support ring (2) is arranged inside the outer ring (1), and a connecting plate (8) is fixedly connected to the outside of the support ring (2), and a connecting column (7) is fixedly connected to the outer wall of the connecting plate (8), and a connecting shaft (6) is rotatably connected to the outer wall of the connecting column (7), and a connecting block (5) is fixedly connected to the outer wall of the connecting shaft (6), and a sleeve (4) is rotatably connected to the outer wall of the connecting block (5), and a support shaft (3) is slidably connected to the inside of the sleeve (4), and the outer wall of the support shaft (3) is fixedly connected to the inside of the outer ring (1), and a spring (11) is slidably connected to the outer wall of the support shaft (3), and both ends of the spring (11) are fixedly connected to the outer wall of the sleeve (4), and a buffer component (9) is arranged on the outer wall of the connecting plate (8).

2. A high-pressure and wear-resistant bearing ring according to claim 1, characterized in that: The support ring (2) comprises an outer layer (201), the outer portion of the outer layer (201) is arranged inside the outer ring (1), the inner portion of the outer layer (201) is fixedly connected to a functional layer (202), the inner portion of the functional layer (202) is fixedly connected to a buffer layer (203), and the inner portion of the buffer layer (203) is fixedly connected to an inner layer (204).

3. The high-pressure and wear-resistant bearing ring according to claim 2, characterized in that: The material of the outer layer (201) is high-carbon chromium bearing steel, the material of the functional layer (202) is alloy steel, the material of the buffer layer (203) is high-toughness steel, and the material of the inner layer (204) is low-carbon steel.

4. The high-pressure and wear-resistant bearing ring according to claim 1, characterized in that: The buffer assembly (9) comprises a second connecting column (902), the outer wall of which is fixedly connected to the outer wall of the connecting plate (8), the outer wall of which is provided with a spring (901), and the outer wall of which is provided on the outer wall of the support shaft (3).

5. The high-pressure and wear-resistant bearing ring according to claim 1, characterized in that: The outer portion of the outer ring (1) is coated with a diamond-like coating (10).

6. A process for manufacturing a pressure-resistant and wear-resistant bearing ring, characterized in that: A high-pressure and wear-resistant bearing ring for use in any one of claims 1 to 5 comprises the following steps: Step 1: Raw material preparation Select high carbon chromium bearing steel, alloy steel, spring steel and low carbon steel as raw materials; Step 2: Forging or Casting The outer ring, support ring, buffer layer and support layer materials are initially formed using a forging process. The outer ring and support ring need to be formed into preliminary outlines by precision forging or die forging according to the size and shape of the bearing ring; the buffer layer and support layer need to be made into the required shape by casting or forging process; Step 3: Heat treatment The outer ring needs surface carburizing or high-frequency quenching to increase the surface hardness, and tempering to improve the internal toughness of the material; The support ring needs to be normalized or quenched and tempered for alloy steel; The buffer layer is annealed; The support layer is normalized or annealed; Step 4: Finishing Use CNC lathes and milling machines to perform precision machining on each layer of the bearing ring; Step 5: Surface Preparation The outer ring surface is coated with diamond-like carbon or TiN; The surface of the support ring is nitrided or chromium coated; The buffer layer and the supporting layer are galvanized or chrome-plated.

7. A process for manufacturing a pressure-resistant and wear-resistant bearing ring according to claim 6, characterized in that: In step 1, the carbon content of the high carbon chromium bearing steel is 0.95%-1.05%, and the chromium content is 1.50%-1.70%; Alloy steel has a carbon content of 0.38%-0.45%, a chromium content of 0.90%-1.20%, and a molybdenum content of 0.15%-0.30%; The carbon content of spring steel is 0.50%-0.80%, and the silicon content is 1.50%-2.00%; Mild steel has a carbon content of 0.10%-0.25%.

8. The manufacturing process of a pressure-resistant and wear-resistant bearing ring according to claim 6 is characterized in that: In step 3, the carburizing treatment of the outer ring needs to be heated to 850°C-950°C for 1-3 hours, and then high-frequency quenching is performed; tempering is heated to 150°C-180°C for 1-2 hours; The normalizing treatment of the support ring needs to be heated to 900℃-950℃ and cooled naturally; the quenching and tempering treatment needs to be heated to 850℃-900℃, quenched, and the tempering temperature is 500℃-550℃; Annealing of the buffer layer requires heating to 600°C-700°C and then furnace cooling; Normalizing of the support layer requires heating to 850°C-900°C and then air cooling.

9. A process for manufacturing a pressure-resistant and wear-resistant bearing ring according to claim 6, characterized in that: In step 5, the coating thickness of the diamond-like coating of the outer ring is 1μm-3μm or the thickness of the TiN coating is controlled at 2μm-4μm, the nitriding temperature of the support ring nitriding treatment is 500℃-550℃, the depth of the nitriding layer is 0.2mm-0.5mm, and the coating thickness of the buffer layer and the support layer is controlled at 5μm-10μm.

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