All Brands
Model: NACHI 7204DB - Angular contact ball bearings (DB) back to back>
Bearing Size
d = 20D = 47
B = 14
a = 2.7
da1(min) = 26
da2(min) = 23
Da1(max) = 41
Da2(max) = 43.4
ra(max) = 1
ra1(max) = 0.6
Mass = 0.11
Basic load rating: 23500
Rated static load: 16600
Limit speed（Grease lubrication）: 10000
Limit speed（Oil lubrication）: 14000
