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Model: NACHI 7317CDB - Angular contact ball bearings (DB) back to back>
Bearing Size
d = 85D = 180
B = 41
a = -5.2
da1(min) = 99
da2(min) = 99
Da1(max) = 166
Da2(max) = 173
ra(max) = 2.5
ra1(max) = 1
Mass = 4.9
Basic load rating: 263000
Rated static load: 262000
Limit speed（Grease lubrication）: 4800
Limit speed（Oil lubrication）: 6600
