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Model: NACHI 6306ZZE - Two dust cover deep groove ball bearings>
Bearing Size
d = 30D = 72
B = 19
da(min) = 37
Da(max) = 65
ra(max) = 1
Mass = 0.346
Basic load rating: 26700
Rated static load: 15000
Limit speed（Grease lubrication）: 6600
