Standardization is a basic work of enterprise quality management, and the enterprise has a complete standardized management system. Standardization is a basic work of enterprise quality management, and the enterprise has a complete standardized management system. In the whole process of product quality, we always work around the "standard". At present, there are more than 30 standards and technical documents used in product design, manufacturing and testing of rolling mill bearings, involving national standards, ministry standards, enterprise standards and factory standards, among which the main standards are as follows:

1. GB/T307.1 Rolling bearing radial bearing product geometric technical specification (GPS) and tolerance

2. GB/T307.2 rolling bearing measurement and inspection principles and methods

3. GB/T307.3 General technical rules for rolling bearings

4. GB/T307.4 Rolling bearing Thrust bearing product geometric technical specifications (GPS) and tolerances

5. GB/T308 rolling bearing steel ball

6. GB/T4604 rolling bearing radial clearance

7. GB/T4661 cylindrical roller bearing

8. GB/T6391 rolling bearing rated dynamic load and rated life

9. GB/T18254 high carbon chromium bearing steel

10. GB/T3203 carburized bearing steel

11. JB/T10235 tapered roller bearing technical conditions

12. JB/T6643 rolling bearing four-point contact ball bearing axial oil gap

13. JB/T1255 high carbon chromium bearing steel rolling bearing parts heat treatment technical conditions

14. Technical conditions for carburizing heat treatment of JB/T8881 rolling bearing parts

15. JB/T5389.1 Four row cylindrical roller bearings for rolling mills

16. JB/T5389.2 Double and four-row tapered roller bearings for rolling mills

17. JB/T7051 rolling bearing parts surface roughness measurement and evaluation method

18. JB/T10338 magnetic particle inspection rules for rolling bearing parts

19. Residual magnetism of JB/T6641 rolling bearing parts and its evaluation method

20. CSBTS TC98.52 Technical conditions for surface roughness of ring of rolling bearing parts

21. CSBTS TC98.54 rolling bearing parts ring and roller appearance quality requirements

22. CSBTS TC98.55 Technical requirements for metal solid cages for rolling bearing parts

23. CSBTS TC98.65 rolling bearing parts for rolling mills with four row cylindrical roller bearing rings and

Retaining ring tolerance

Q/ZZT J0002 bearing code method standard

In the process of the implementation of technical standards, the standard implementation rate is 100%, and the advanced nature, unity and authority of the standard are achieved in order to produce products with user satisfaction. In the whole process of product quality, we always work around the "standard". At present, there are more than 30 standards and technical documents used in product design, manufacturing and testing of rolling mill bearings, involving national standards, ministry standards, enterprise standards and factory standards, among which the main standards are as follows:

1. GB/T307.1 Rolling bearing radial bearing product geometric technical specification (GPS) and tolerance

2. GB/T307.2 rolling bearing measurement and inspection principles and methods

3. GB/T307.3 General technical rules for rolling bearings

4. GB/T307.4 Rolling bearing Thrust bearing product geometric technical specifications (GPS) and tolerances

5. GB/T308 rolling bearing steel ball

6. GB/T4604 rolling bearing radial clearance

7. GB/T4661 cylindrical roller bearing

8. GB/T6391 rolling bearing rated dynamic load and rated life

9. GB/T18254 high carbon chromium bearing steel

10. GB/T3203 carburized bearing steel

11. JB/T10235 tapered roller bearing technical conditions

12. JB/T6643 rolling bearing four-point contact ball bearing axial oil gap

13. JB/T1255 high carbon chromium bearing steel rolling bearing parts heat treatment technical conditions

14. Technical conditions for carburizing heat treatment of JB/T8881 rolling bearing parts

15. JB/T5389.1 Four row cylindrical roller bearings for rolling mills

16. JB/T5389.2 Double and four-row tapered roller bearings for rolling mills

17. JB/T7051 rolling bearing parts surface roughness measurement and evaluation method

18. JB/T10338 magnetic particle inspection rules for rolling bearing parts

19. Residual magnetism of JB/T6641 rolling bearing parts and its evaluation method

20. CSBTS TC98.52 Technical conditions for surface roughness of ring of rolling bearing parts

21. CSBTS TC98.54 rolling bearing parts ring and roller appearance quality requirements

22. CSBTS TC98.55 Technical requirements for metal solid cages for rolling bearing parts

23. CSBTS TC98.65 rolling bearing parts for rolling mills with four row cylindrical roller bearing rings and

Retaining ring tolerance

Q/ZZT J0002 bearing code method standard

In the process of the implementation of technical standards, the standard implementation rate is 100%, and the advanced nature, unity and authority of the standard are achieved in order to produce products with user satisfaction.