All Brands
Model: NACHI 7218DB - Angular contact ball bearings (DB) back to back>
Bearing Size
d = 90D = 160
B = 30
a = 21.1
da1(min) = 100
da2(min) = 96
Da1(max) = 150
Da2(max) = 154
ra(max) = 2
ra1(max) = 1
Mass = 2.3
Basic load rating: 191000
Rated static load: 206000
Limit speed（Grease lubrication）: 2800
Limit speed（Oil lubrication）: 3700
