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Model: NACHI 7021DF - Angular contact ball bearings (DF) face to face>
Bearing Size
d = 105D = 160
B = 26
a = 25.2
da1(min) = 113
da2(min) = 113
Da1(max) = 152
Da2(max) = 155
ra(max) = 2
ra1(max) = 1
Mass = 1.73
Basic load rating: 130000
Rated static load: 163000
Limit speed（Grease lubrication）: 2600
Limit speed（Oil lubrication）: 3500
