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Model: NACHI 2304K - Conical bore self-aligning ball bearing>
Bearing Size
d = 20D = 52
B = 21
da(min) = 26.5
Da(max) = 45.5
ra(max) = 1
Mass = 0.209
Basic load rating: 18000
Rated static load: 4700
Limit speed（Grease lubrication）: 11000
Limit speed（Oil lubrication） 14000
