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Model: NACHI 7018DB - Angular contact ball bearings (DB) back to back>
Bearing Size
d = 90D = 140
B = 24
a = 21.2
da1(min) = 97
da2(min) = 97
Da1(max) = 133
Da2(max) = 135.6
ra(max) = 1.5
ra1(max) = 1
Mass = 1.26
Basic load rating: 106000
Rated static load: 126000
Limit speed（Grease lubrication）: 3200
Limit speed（Oil lubrication）: 4200
