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Model: NACHI 7221BDT - Angular contact ball bearing series (DT)>
Bearing Size
d = 105D = 190
B = 36
a = 44
da1(min) = 117
da2(min) = 112
Da1(max) = 178
Da2(max) = 183
ra(max) = 2
ra1(max) = 1
Mass = 3.93
Basic load rating: 239000
Rated static load: 267000
Limit speed（Grease lubrication）: 2100
Limit speed（Oil lubrication）: 2900
