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Model: NACHI 6909ZE - Single dust cover deep groove ball bearings>
Bearing Size
d = 45D = 68
B = 12
da(min) = 49
Da(max) = 64
ra(max) = 0.6
Mass = 0.122
Basic load rating: 14100
Rated static load: 10900
Limit speed（Grease lubrication）: 10000
Limit speed（Oil lubrication） 12000
