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Model: NACHI 7226BDB - Angular contact ball bearings (DB) back to back>
Bearing Size
d = 130D = 230
B = 40
a = 55.5
da1(min) = 144
da2(min) = 137
Da1(max) = 216
Da2(max) = 223
ra(max) = 2.5
ra1(max) = 1
Mass = 6.88
Basic load rating: 298000
Rated static load: 370000
Limit speed（Grease lubrication）: 1700
Limit speed（Oil lubrication）: 2300
