GB/T 40701-2021 in English
VALIDElectric multiple units gear oils
- Issued on:2021-10-11
- Implemented on:2022-05-01
- File Format:PDF
- Delivery:Via email within 1~3 business days
$97.00
| Standard No: | GB/T 40701-2021 |
| Document status: | VALID |
| Title in English: | Electric multiple units gear oils |
| Title in Chinese: | 动车组驱动齿轮箱润滑油 |
| Language: | English |
| File Format: | Electronic (PDF) |
| Delivery: | Via email within 1~3 business days |
| Issued on: | 2021-10-11 |
| Implemented on: | 2022-05-01 |
| ICS Classification: | 75.100-Lubricants, industrial oils and related products |
| Chinese Classification: | E40-Synthetic grease |
| Professional Classification: | GB-National Standard |
| Related Keywords: | control base oil viscosity index deviation
key technical requirements performance indicators 75w-80/75w-90 dual viscosity grade system key performance indicators 75w-90 test standards |
| Related Topics: | EMU
Gearbox Spur Gearbox Lubricant Standard Lubricant Standard driverless car GBT40701 GB/T 40701-2021 gear lubricant EMU axle box positioning node lubricating oil Roller oil anti-foaming head Gearbox experiment Pulleys and Pulleys Europe Gearbox quality car gear set drive Gearbox industry Active wheel set gearbox related |
《GB/T 40701-2021动车组驱动齿轮箱润滑油》由TC280（全国石油产品和润滑剂标准化技术委员会）归口，TC280SC1（全国石油产品和润滑剂标准化技术委员会石油燃料和润滑剂分会）执行，主管部门为国家标准化管理委员会。
Introduction
Interpretation of the core content of the standard
This standard establishes a complete technical specification system for the first time for the special lubricating oil for EMU drive gearbox, focusing on:
- Technical route of synthetic base oil + composite additives
- 75W-80/75W-90 dual viscosity grade system
- 12 key performance indicators and test methods
- 9 durability evaluation standards for gearbox bench
Comparison of key technical requirements
| Performance indicators | 75W-80 | 75W-90 | Test standards |
|---|---|---|---|
| 100℃ Kinematic Viscosity (mm²/s) | 7.0-11.0 | 13.5-18.5 | GB/T265 |
| Apparent Viscosity (-40℃)(mPa·s) | ≤150000 | GB/T11145 | |
| FZG Load-bearing Grade | ≥12 | NB/SH/T0306 | |
Key Points for Implementation of Standards
Typical application scenarios
When a certain model of Fuxing EMU is started in a -30℃ environment, the use of 75W-80 oil can reduce the starting torque of the gearbox by 23%, verifying the scientific nature of the standard medium and low temperature viscosity index.
Key to quality control
- Base oil viscosity index deviation between raw material batches ≤5
- Additive package Sulfur and phosphorus content accurately controlled at ±0.1%
- Finished oil Mechanical impurities must be ≤0.05%
Technology evolution analysis
Compared with TB/T3134-2007, this standard has the following major breakthroughs:
- New FE8 bearing wear test (≤30mg)
- Introduction of 100h shear stability test
- Clear requirements for magnetic oil plugging particle detection
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