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Model: NACHI 7008DF - Angular contact ball bearings (DF) face to face>
Bearing Size
d = 40D = 68
B = 15
a = 8.2
da1(min) = 45
da2(min) = 45
Da1(max) = 63
Da2(max) = 65
ra(max) = 1
ra1(max) = 0.6
Mass = 0.21
Basic load rating: 30500
Rated static load: 29000
Limit speed（Grease lubrication）: 6600
Limit speed（Oil lubrication）: 9000
