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Model: NACHI 7309DF - Angular contact ball bearings (DF) face to face>
Bearing Size
d = 45D = 100
B = 25
a = 8.4
da1(min) = 54
da2(min) = 50
Da1(max) = 91
Da2(max) = 94.6
ra(max) = 1.5
ra1(max) = 1
Mass = 0.875
Basic load rating: 103000
Rated static load: 87000
Limit speed（Grease lubrication）: 5000
Limit speed（Oil lubrication）: 6700
