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Model: NACHI 7234CDF - Angular contact ball bearings (DF) face to face>
Bearing Size
d = 170D = 310
B = 52
a = 2.2
da1(min) = 188
da2(min) = 179
Da1(max) = 292
Da2(max) = 301
ra(max) = 3
ra1(max) = 1.5
Mass = 17.4
Basic load rating: 485000
Rated static load: 725000
Limit speed（Grease lubrication）: 2600
Limit speed（Oil lubrication）: 3700
