GB/T 37774-2019Plain bearings - Pad materials for tilting pad bearings (English PDF)
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Issued by
State Administration for Market Regulation, China National Standardization Administration
Level / Type
National · Recommended
Issue date
August 30, 2019
Implementation date
March 1, 2020
Scope
GB/T 37774-2019 (Plain bearings - Pad materials for tilting pad bearings) is available as an English-translated PDF.
GB/T 37774-2019 — This standard specifies the technology for manufacturing metal-based bearing materials, polymer materials, tile backing materials and tilting pad pivot materials for tilting pads. Claim.
Document preview — GB/T 37774-2019
National Standard of the People's Republic of China
- ICS
- 21.100.10
- Classification
- J 12
Issued by: State Administration for Market Regulation, China National Standardization Administration
Contents
- Foreword
- Introduction
- 1 Scope
- 2 Normative references
- 3 Technical requirements
- 3.1 General
- 3.2 Metal materials
- Foreword
- Introduction
- 1 Scope
- 2 Normative references
- 3 Technical requirements
- 3.1 General
- 3.2 Metal materials
Foreword
This standard was drafted in accordance with the rules given in GB/T 1.1-2009.
This standard uses the translation method equivalent to ISO 14287.2012 "sliding bearing tilting pad bearing pad material".
The documents of our country that have a consistent correspondence with the international documents referenced in this standard are as follows.
---GB/T 35088-2018 Sliding bearing tin-based casting alloy for multi-layer sliding bearings (ISO 4381.2011, IDT)
---GB/T 18326-2001 Metallic multilayer material for sliding bearing thin-walled sliding bearings (ISO 4383.1991, IDT)
This standard was proposed by the China Machinery Industry Federation.
This standard is under the jurisdiction of the National Sliding Bearing Standardization Technical Committee (SAC/TC236).
This standard is drafted by. China Machine Productivity Promotion Center, Hunan Chongde Industrial Technology Co., Ltd.
Participated in the drafting of this standard. Zhejiang Zhuji City Bearing Factory Co., Ltd., Zhejiang Shenke Sliding Bearing Technology Co., Ltd., Xi'an Transportation
University, Lin'an Oriental Sliding Bearing Co., Ltd.
This standard is interpreted by the National Standardization Technical Committee for Plain Bearings.
Introduction
The tilting pad bearing bears the load evenly through multiple tiles. The tile can rotate on the fulcrum of its tile back surface. This structure allows
The tile is tilted freely to help maintain the optimum oil film shape of the sliding surface while improving the bearing capacity of the bearing.
These bearings are often used as thrust bearings or radial bearings on rotating machinery and operate under load conditions with lubricating oil supply.
The application has a long history. With the continuous development of high-speed, high-performance rotating machinery, various types of tile materials have been put into practical use.
Sliding bearing tilting pad bearing pad material
1 Scope
This standard specifies the technology for manufacturing metal-based bearing materials, polymer materials, tile backing materials and tilting pad pivot materials for tilting pads.
Claim.
2 Normative references
The following documents are indispensable for the application of this document. For dated references, only dated versions apply to this article.
Pieces. For undated references, the latest edition (including all amendments) applies to this document.
ISO 4381 Sliding bearing tin-based casting alloy for multi-layer plain bearings (Plainbearings-Tincastingaloysformul-
Tilayerplainbearings)
ISO 4383 sliding bearing thin-walled plain bearing with metal multilayer material (Plainbearings-Multilayermaterialsfor
Thin-waledplainbearings)
3 Technical requirements
3.1 General
According to the operating conditions of the bearing, the material of the sliding surface layer of the bearing is usually made of metal bearing material combined with the metal of the tile back or polymerized.
Material composition. Tin-based bearing alloys shall comply with ISO 4381 and metal multilayer materials shall comply with ISO 4383. Appendix A provides the tile axis
Guidelines for the selection of materials.
3.2 Metal materials
3.2.1 Typical materials
The chemical composition of some typical metal-based bearing alloy materials is shown in Table 1.
3.2.2 Tin-based Babbitt Alloy
Tin-based babies are commonly used metal-based bearing materials and are usually formed by casting. Babbitt alloy has good casting properties. but
Attention should be paid to quality issues such as bonding strength, segregation and porosity problems with tile backing materials.
In order to ensure the proper strength, hardness and hardness of the babbitt alloy, the combination of Sb and Cu alloys shown in Table 1 is often used in practical applications.
Lead-based babbitt is rarely used for environmental reasons.
3.2.3 Aluminum-based bearing alloy
Aluminum-based bearing alloys are commonly used in high-speed, heavy-duty, high-temperature operating conditions. For example. Al-Sn alloy, which is made of tin added to aluminum metal
The alloy is the most commonly used aluminum-based bearing alloy. In order to improve the sliding performance of Al-Sn alloy in high-speed operation environment, it is usually used.
AlSn40 alloy.
The aluminum-based alloy tile bearing is made by rolling the aluminum-based alloy onto the carbon steel to obtain a bimetallic strip. Made of this alloy
GB/T 37774-2019
Plain bearings - Pad materials for tilting pad bearings
ICS 21.100.10
J12
National Standards of People's Republic of China
Sliding bearing tilting pad bearing pad material
(ISO 14287.2012, IDT)
Published on.2019-08-30
2020-03-01 implementation
State market supervision and administration
China National Standardization Administration issued
Foreword
This standard was drafted in accordance with the rules given in GB/T 1.1-2009.
This standard uses the translation method equivalent to ISO 14287.2012 "sliding bearing tilting pad bearing pad material".
The documents of our country that have a consistent correspondence with the international documents referenced in this standard are as follows.
---GB/T 35088-2018 Sliding bearing tin-based casting alloy for multi-layer sliding bearings (ISO 4381.2011, IDT)
---GB/T 18326-2001 Metallic multilayer material for sliding bearing thin-walled sliding bearings (ISO 4383.1991, IDT)
This standard was proposed by the China Machinery Industry Federation.
This standard is under the jurisdiction of the National Sliding Bearing Standardization Technical Committee (SAC/TC236).
This standard is drafted by. China Machine Productivity Promotion Center, Hunan Chongde Industrial Technology Co., Ltd.
Participated in the drafting of this standard. Zhejiang Zhuji City Bearing Factory Co., Ltd., Zhejiang Shenke Sliding Bearing Technology Co., Ltd., Xi'an Transportation
University, Lin'an Oriental Sliding Bearing Co., Ltd.
This standard is interpreted by the National Standardization Technical Committee for Plain Bearings.
Introduction
The tilting pad bearing bears the load evenly through multiple tiles. The tile can rotate on the fulcrum of its tile back surface. This structure allows
The tile is tilted freely to help maintain the optimum oil film shape of the sliding surface while improving the bearing capacity of the bearing.
These bearings are often used as thrust bearings or radial bearings on rotating machinery and operate under load conditions with lubricating oil supply.
The application has a long history. With the continuous development of high-speed, high-performance rotating machinery, various types of tile materials have been put into practical use.
Sliding bearing tilting pad bearing pad material
1 Scope
This standard specifies the technology for manufacturing metal-based bearing materials, polymer materials, tile backing materials and tilting pad pivot materials for tilting pads.
Claim.
2 Normative references
The following documents are indispensable for the application of this document. For dated references, only dated versions apply to this article.
Pieces. For undated references, the latest edition (including all amendments) applies to this document.
ISO 4381 Sliding bearing tin-based casting alloy for multi-layer plain bearings (Plainbearings-Tincastingaloysformul-
Tilayerplainbearings)
ISO 4383 sliding bearing thin-walled plain bearing with metal multilayer material (Plainbearings-Multilayermaterialsfor
Thin-waledplainbearings)
3 Technical requirements
3.1 General
According to the operating conditions of the bearing, the material of the sliding surface layer of the bearing is usually made of metal bearing material combined with the metal of the tile back or polymerized.
Material composition. Tin-based bearing alloys shall comply with ISO 4381 and metal multilayer materials shall comply with ISO 4383. Appendix A provides the tile axis
Guidelines for the selection of materials.
3.2 Metal materials
3.2.1 Typical materials
The chemical composition of some typical metal-based bearing alloy materials is shown in Table 1.
3.2.2 Tin-based Babbitt Alloy
Tin-based babies are commonly used metal-based bearing materials and are usually formed by casting. Babbitt alloy has good casting properties. but
Attention should be paid to quality issues such as bonding strength, segregation and porosity problems with tile backing materials.
In order to ensure the proper strength, hardness and hardness of the babbitt alloy, the combination of Sb and Cu alloys shown in Table 1 is often used in practical applications.
Lead-based babbitt is rarely used for environmental reasons.
3.2.3 Aluminum-based bearing alloy
Aluminum-based bearing alloys are commonly used in high-speed, heavy-duty, high-temperature operating conditions. For example. Al-Sn alloy, which is made of tin added to aluminum metal
The alloy is the most commonly used aluminum-based bearing alloy. In order to improve the sliding performance of Al-Sn alloy in high-speed operation environment, it is usually used.
AlSn40 alloy.
The aluminum-based alloy tile bearing is made by rolling the aluminum-based alloy onto the carbon steel to obtain a bimetallic strip. Made of this alloy
......
This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — all pages — is available in the English PDF.
Referenced standards
Normative references
ISO 4381 · ISO 4383
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