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Model: NACHI 6221ZZ - Two dust cover deep groove ball bearings>
Bearing Size
d = 105D = 190
B = 36
da(min) = 117
Da(max) = 178
ra(max) = 2
Mass = 3.76
Basic load rating: 133000
Rated static load: 104000
Limit speed（Grease lubrication）: -
