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Model: NACHI 6906ZE - Single dust cover deep groove ball bearings>
Bearing Size
d = 30D = 47
B = 9
da(min) = 32
Da(max) = 45
ra(max) = 0.3
Mass = 0.045
Basic load rating: 7250
Rated static load: 5000
Limit speed（Grease lubrication）: 14000
Limit speed（Oil lubrication） 16000
