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Model: NACHI 6230Z - Single dust cover deep groove ball bearings>
Bearing Size
d = 150D = 270
B = 45
da(min) = 164
Da(max) = 256
ra(max) = 2.5
Mass = 9.41
Basic load rating: 176000
Rated static load: 168000
Limit speed（Grease lubrication）: 2200
Limit speed（Oil lubrication） 2600
