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Model: NACHI 6902ZE - Single dust cover deep groove ball bearings>
Bearing Size
d = 15D = 28
B = 7
da(min) = 17
Da(max) = 26
ra(max) = 0.3
Mass = 0.016
Basic load rating: 4300
Rated static load: 2250
Limit speed（Grease lubrication）: 26000
Limit speed（Oil lubrication） 31000
