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Model: NACHI 6204ZZE - Two dust cover deep groove ball bearings>
Bearing Size
d = 20D = 4
B = 14
da(min) = 26
Da(max) = 41
ra(max) = 1
Mass = 0.106
Basic load rating: 12800
Rated static load: 6600
Limit speed（Grease lubrication）: 10000
