General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China
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GB/Z 36517-2018
Scope
This guidance technical document gives a recommended method for calculating the modified reference rating life of a bearing, which takes into account lubrication, contamination and fatigue load limits of the bearing material, as well as the effects of inclination or deflection, bearing operating clearance and internal load distribution on the rolling elements . The calculation method given in this guidance technical document covers more influencing parameters than ISO 281. The guidance and limitations given in ISO 281 also apply to this technical guidance document. This calculation method is applicable to the fatigue life of bearings. Other failure mechanisms, such as abrasion or microscopic spalling (greying), are beyond the scope of this guidance technical document. This guiding technical document is applicable to inclined single row radial ball bearings bearing radial and axial loads, considering radial clearance and tilting; this guiding technical document is also applicable to inclined single row radial ball bearings bearing pure radial loads Subbearings, taking into account radial clearance, edge stress and tilting. This guiding technical document also gives a reference method for analyzing internal load distribution under general loading conditions. The analysis of internal load distribution and modified reference rating life of multi-row bearings or bearings with more complex geometric shapes can be deduced from the formulas given in this guidance technical document. For these bearings, the load distribution for each row needs to be considered. This guidance technical document is primarily intended for use in computer programs, which together with ISO 281 cover the information required for life calculations. For accurate life calculation under the above specified working conditions, it is recommended to use this guiding technical document or the advanced computer calculation method provided by the bearing manufacturer to determine the reference equivalent dynamic load under different loading conditions.
GB/Z 36517-2018 Referenced Document
GB/T 6391-2010 Rolling bearings.Dynamic load ratings and rating life
GB/T 7811-2015 Rolling bearings.Symbols for physical quantities
GB/Z 36517-2018 history
2018GB/Z 36517-2018 Rolling bearings.Methods for calculating the modified reference rating life for universally loaded bearings