GB/T 956.3-2017 in English
VALIDConical spring washers
- Issued on:2017-12-29
- Implemented on:2018-04-01
- File Format:PDF
- Delivery:Via email within 1~3 business days
$97.00
| Standard No: | GB/T 956.3-2017 |
| Document status: | VALID |
| Title in English: | Conical spring washers |
| Title in Chinese: | 锥形弹性垫圈 |
| Language: | English |
| File Format: | Electronic (PDF) |
| Delivery: | Via email within 1~3 business days |
| Issued on: | 2017-12-29 |
| Implemented on: | 2018-04-01 |
| ICS Classification: | 21.060.30-Washers, locking elements |
| Chinese Classification: | J13-Fastener |
| Professional Classification: | GB-National Standard |
| Related Keywords: | conical spring washers
conical spring washers background standard formulation conical spring washers conical spring washers introduction gb/t conical elastic washers |
| Related Topics: | elastic washer
elastic washer elastic mat GB/T 956.3 GB/T 956.3-2017 Wave elastic washer size Spring washer hardness The elastic coefficient of the corrugated gasket |
《GB/T 956.3-2017锥形弹性垫圈》由TC85（全国紧固件标准化技术委员会）归口，主管部门为中国机械工业联合会。
Introduction
GB/T 956.3—2017: Technical Specifications and Application of Conical Spring Washers
Background and Significance of Standard Formulation
Conical Spring Washers are an important part of the field of mechanical fasteners, mainly used to provide preload and prevent loosening of bolted connections. As part of the "Conical Washer" series of standards, GB/T 956.3—2017 specifically regulates the technical requirements of conical spring washers.
The standard was proposed by the China Machinery Industry Federation and managed by the National Technical Committee for Standardization of Fasteners, aiming to ensure that the quality and performance of conical spring washers meet the needs of the machinery industry. By unifying dimensions, materials and technical conditions, GB/T 956.3 provides an important basis for standardized production in the industry.
Comparative analysis of standard frameworks
| Standard dimensions | GB/T 956.3—2017 | ISO reference standards | Difference analysis |
|---|---|---|---|
| Scope of application | Specifications are 2 mm~30 mm, suitable for grade 8.8 and grade 10.9 bolts | ISO 9456-1: Conical elastic washers | GB/T 956.3 expands the scope of application and is optimized for domestic production characteristics |
| Material requirements | Spring steel, material grade is selected by the manufacturer | ISO 9456-1: Carbon spring steel | Domestic standards are more flexible, but must comply with the technical conditions of GB/T 94.4 |
| Technical parameters | Including dimensional tolerance, hardness range (420HV~490HV), elastic modulus, etc. | ISO 9456-1: Elastic modulus and load requirements | Domestic standards increase control requirements for permanent deformation |
Technical conditions and practical applications of conical elastic washers
Detailed explanation of technical parameters
The key technical parameters of conical elastic washers include:
- Dimensional tolerance:All dimensional tolerances apply before coating to ensure installation accuracy
- Hardness range:420HV~490HV, ensuring sufficient elasticity and wear resistance
- Elastic modulus:Complies with GB/T 94.4 regulations to ensure the elastic performance of the gasket
Actual application cases
Conical elastic washers are widely used in machinery manufacturing, automotive industry, aerospace and other fields. For example, in the bolt connection of automobile engines, conical elastic washers can effectively prevent loosening problems caused by vibration and temperature changes.
Implementation suggestions and precautions
In actual applications, the following points should be noted:
- Select washers strictly according to the size and material specified in the standard to avoid performance degradation due to improper selection
- Ensure the correct orientation of the washers during installation to achieve the best anti-loosening effect
- Regularly check the elastic state of the washers to prevent permanent deformation from affecting the preload
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