GB/T 32321-2015: Translated English of Chinese Standard. (GBT 32321-2015, GB/T32321-2015, GBT32321-2015): Rolling bearings - Sealed deep groove ball bearings - Performance test rule of dustproofing, grease leakage and temperature rise
https://www.chinesestandard.net, 2019 M05 11 - 11 pages
This Standard specifies performance test rule of dustproofing, grease leakage and temperature rise for general-purpose sealed deep groove ball bearings, of which the dimensions meet the diameter series 0, 2, 3 in GB/T 276, nominal inner diameter. The bearings of other types, sizes and size ranges shall refer to this Standard to use. This Standard is applicable to dustproofing, grease leakage and temperature rise tests for sealed ball bearings on test devices.
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according to Table actual measured temperature ambient temperature Amount of grease ball bearings sealed bearing chamber bearing operation bearing sample mass bearings sealed ball bearings with dust conditions Nominal inner contact sealed ball deep groove ball diameter of bearing dismantle the gasket dust invasion amount dust medium box Dust-filling amount dustproofing performance test Effective space volume gasket ring grease leakage performance Grease leakage rate grease sample groove ball bearings leakage and temperature leakage performance test Limit speed Nominal inner diameter Non-contact sealed ball performance according performance of sealed performance test conditions Performance test rule piece/cm3 Post-test bearing sample Pre-test bearing sample Radial Axial Radial ring or dust rise of bearing rise performance test Rolling bearings sample’s sealed ball bearings selected according set of bearing single set specified test conditions Standard temperature of outer temperature rise performance test conditions Nominal Test device Test speed r/min test the test verified as qualified