GB/T 309-2021
ActiveRolling bearings—Needle roller
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Application Summary AI generated
GB/T 309-2021 specifies the dimensions, tolerances, and technical requirements for needle rollers used in rolling bearings. It is applied in the design and manufacturing of needle roller bearings, which are commonly used in automotive transmissions, machine tools, and industrial machinery where compact radial load support is needed. The standard ensures interchangeability and quality consistency for needle rollers in both production and quality inspection contexts.
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Transparency note: The application summary and key sentences on this page were automatically generated by AI from the standard's original text. This content has not been human-verified and should not be used for compliance or regulatory purposes. Always refer to the official standard document from the issuing authority.