GB/T 36223-2018 in English
VALIDWide cartridge annular ball bearings primarily for aircraft generators and motor-generators
- Issued on:2018-05-14
- Implemented on:2018-12-01
- File Format:PDF
- Delivery:Via email within 1~3 business days
$97.00
《GB/T 36223-2018航空电机用宽型深沟球轴承》由TC435（全国航空器标准化技术委员会）归口，主管部门为国家标准化管理委员会。
Introduction
1. Background and significance of the standard
GB/T 36223-2018 "Wide Deep Groove Ball Bearings for Aviation Motors" was developed to meet the demand for high-performance bearings in the aviation motor field. The standard is based on extensive research and testing, combined with advanced domestic and foreign experience, and aims to improve the reliability and service life of bearings.
2. Analysis of the main contents of the standard
2.1 Structure and design requirements
Wide Deep Groove Ball Bearings for Aviation Motors The structure is shown in Figure 1, and its features include:
- The inner or outer ring of the bearing has a permanent mark for easy traceability and management.
- Both the inner and outer rings have rounded corners to improve mechanical properties and service life.
2.2 Dimensions, Tolerances and Mechanical Properties
| Dimension Code | d（mm） | D（mm） | B（mm） | s_max（mm） | a_max（mm） | r_max（mm） | Cor（kN） | C,a（kN） | Limiting Speed（r/min） | |
|---|---|---|---|---|---|---|---|---|---|---|
| 1 | 12 | 32 | 15.9 | 0.6 | 2 | 2.65 | 4.67 | Grease lubrication: 15 600 | Oil lubrication: 25 000 | |
2.3 Material requirements
Table 3 specifies the materials and standards for various parts of the bearing in detail:
| Part | Material | Standard | Code |
|---|---|---|---|
| Rings and rolling elements | 95Cr18 | GJB 2294 | C |
3. Comparison of standard framework and analysis of technological evolution
Compared with other relevant standards (such as GB/T 307.1, GJB 6484, etc.), it can be seen that this standard has made improvements in the following aspects:
- Higher material performance requirements.
- Stricter dimensional tolerance control.
- Added dustproof, grease leakage and temperature rise performance requirements.
4. Implementation suggestions
4.1 Principles of standard selection
In the design and selection of aviation motors, the appropriate bearing model should be selected according to the specific working conditions, and ensure that the following requirements are met:
- Comply with the specified material standards.
- Choose an appropriate type of grease (such as MIL-PRF-27617D or MIL-PRF-81322).
- Pay attention to the dustproof and sealing performance of the bearing.
4.2 Installation and Maintenance Recommendations
During installation and use, pay attention to the following matters:
- Ensure the cleanliness of the installation environment.
- Regularly check the bearing clearance and temperature rise.
- Replace and replenish grease in accordance with standard requirements.
4.3 Quality Control
Manufacturers should establish a complete quality control system to ensure that each bearing product meets the requirements of GB/T 36223-2018. In particular, key parameters (such as radial clearance and material properties) should be strictly tested.
5. Future Outlook
With the continuous development of aviation technology, wide deep groove ball bearings will face higher performance requirements. It is recommended to further optimize material selection, improve manufacturing technology, and strengthen the connection with international standards in subsequent standard revisions.
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