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Model: NACHI 21304EK - Tapered hole spherical roller bearing>
Bearing Size
d = 20D = 52
B = 15
da(min) = 27
Da(max) = 45
ra(max) = 1
Mass = 0.21
Basic load rating: 34000
Rated static load: 33500
Limit speed（Grease lubrication）: 7300
Limit speed（Oil lubrication） 9000
