Slewing bearing
1 Scope
This standard specifies the symbols, classification and designation, requirements, testing methods, inspection rules, marking, packaging, transportation and storage of slewing bearings.
This standard is applicable to slewing bearings for engineering machinery, mining machinery, port machinery, construction machinery and other machinery requiring relative slewing movement of two parts.
2 Normative references
The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.
GB/T 308.1 Rolling bearings - Balls - Part 1: Steel balls
GB/T 699 Quality carbon structure steels
GB/T 1357 Cylindrical gears for general engineering and for heavy engineering - Modules
GB/T 3077 Alloy structure steels
GB/T 4661 Rolling bearings - Cylindrical rollers
GB/T 5617 Determination of effective depth of hardening after induction or flame hardening of steel
GB/T 6394 Determination of estimating the average grain size of metal
GB/T 10095.1-2008 Cylindrical gears - System of accuracy - Part 1: Definitions and allowable values of deviations relevant to corresponding flanks of gear teeth
GB/T 10095.2-2008 Cylindrical gears - System of accuracy - Part 2: Definitions and allowable values of deviations relevant to radial composite deviations and runout information
GB/Z 18620.1 Cylindrical gears - Code of inspection practice - Part 1: Inspection of corresponding flanks of gear teeth
GB/Z 18620.2 Cylindrical gears - Code of inspection practice - Part 2: Inspection related to radial composite deviations, runout, tooth thickness and backlash
HG/T 2349 Polyamide 1010 resin
HG/T 2811 Rubber material of rotary shaft lip seal ring
JB/T 5947 Engineering machinery - General technical specifications for packaging
JB/T 7940.7 Grease nipples and lubricating cups - Technical specification
3 Symbols
See Table 1 and Figure 1 for the appellation and symbol of each part of a slewing bearing.
Table 1 Appellation and symbol of each part
Contents
Foreword V
1 Scope
2 Normative references
3 Symbols
4 Classification and designation
4.1 Type
4.2 Basic parameters
4.3 Marking
5 Requirements
5.1 Parts
5.2 Assembly
5.3 Selection calculation
5.4 Load-bearing capacity curve
5.5 Other requirements
6 Testing methods
6.1 Testing of parts
6.2 Measurement of assembly precision
7 Inspection rules
7.1 End-of-manufacturing inspection
7.2 Type inspection
7.3 Judgment rules
7.4 Other requirements
8 Marking, packaging, transportation and storage
8.1 Marking
8.2 Packaging
8.3 Transportation and storage
Annex A (Informative) Calculation method of slewing bearing selection
A.1 Overview
A.2 Calculation for selection of single-row four-point contact ball slewing bearings
A.3 Calculation for selection of double-row different-diameter ball type slewing bearings
A.4 Calculation for selection of single-row crossed roller slewing bearings
A.5 Calculation for selection of triple-row roller slewing bearings (total radial force Fr is borne by radial rolling elements)
A.6 Strength check of mounting bolts
Annex B (Informative) Load-bearing capacity curve of slewing bearing
B.1 Application conditions
B.2 Load-bearing capacity curve
B.3 Durability test method
Bibliography
Slewing bearing
1 Scope
This standard specifies the symbols, classification and designation, requirements, testing methods, inspection rules, marking, packaging, transportation and storage of slewing bearings.
This standard is applicable to slewing bearings for engineering machinery, mining machinery, port machinery, construction machinery and other machinery requiring relative slewing movement of two parts.
2 Normative references
The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.
GB/T 308.1 Rolling bearings - Balls - Part 1: Steel balls
GB/T 699 Quality carbon structure steels
GB/T 1357 Cylindrical gears for general engineering and for heavy engineering - Modules
GB/T 3077 Alloy structure steels
GB/T 4661 Rolling bearings - Cylindrical rollers
GB/T 5617 Determination of effective depth of hardening after induction or flame hardening of steel
GB/T 6394 Determination of estimating the average grain size of metal
GB/T 10095.1-2008 Cylindrical gears - System of accuracy - Part 1: Definitions and allowable values of deviations relevant to corresponding flanks of gear teeth
GB/T 10095.2-2008 Cylindrical gears - System of accuracy - Part 2: Definitions and allowable values of deviations relevant to radial composite deviations and runout information
GB/Z 18620.1 Cylindrical gears - Code of inspection practice - Part 1: Inspection of corresponding flanks of gear teeth
GB/Z 18620.2 Cylindrical gears - Code of inspection practice - Part 2: Inspection related to radial composite deviations, runout, tooth thickness and backlash
HG/T 2349 Polyamide 1010 resin
HG/T 2811 Rubber material of rotary shaft lip seal ring
JB/T 5947 Engineering machinery - General technical specifications for packaging
JB/T 7940.7 Grease nipples and lubricating cups - Technical specification
3 Symbols
See Table 1 and Figure 1 for the appellation and symbol of each part of a slewing bearing.
Table 1 Appellation and symbol of each part
Contents of JB/T 2300-2018
Contents
Foreword V
1 Scope
2 Normative references
3 Symbols
4 Classification and designation
4.1 Type
4.2 Basic parameters
4.3 Marking
5 Requirements
5.1 Parts
5.2 Assembly
5.3 Selection calculation
5.4 Load-bearing capacity curve
5.5 Other requirements
6 Testing methods
6.1 Testing of parts
6.2 Measurement of assembly precision
7 Inspection rules
7.1 End-of-manufacturing inspection
7.2 Type inspection
7.3 Judgment rules
7.4 Other requirements
8 Marking, packaging, transportation and storage
8.1 Marking
8.2 Packaging
8.3 Transportation and storage
Annex A (Informative) Calculation method of slewing bearing selection
A.1 Overview
A.2 Calculation for selection of single-row four-point contact ball slewing bearings
A.3 Calculation for selection of double-row different-diameter ball type slewing bearings
A.4 Calculation for selection of single-row crossed roller slewing bearings
A.5 Calculation for selection of triple-row roller slewing bearings (total radial force Fr is borne by radial rolling elements)
A.6 Strength check of mounting bolts
Annex B (Informative) Load-bearing capacity curve of slewing bearing
B.1 Application conditions
B.2 Load-bearing capacity curve
B.3 Durability test method
Bibliography
