All Brands
Model: NACHI 7220CDB - Angular contact ball bearings (DB) back to back>
Bearing Size
d = 100D = 180
B = 34
a = -0.8
da1(min) = 112
da2(min) = 112
Da1(max) = 168
Da2(max) = 173
ra(max) = 2
ra1(max) = 1
Mass = 3.32
Basic load rating: 244000
Rated static load: 255000
Limit speed（Grease lubrication）: 4600
Limit speed（Oil lubrication）: 6300
