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Model: NACHI 7234 - Single row angular contact ball bearings>
Bearing Size
d = 170D = 310
B = 52
a = 43.3
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: 272000
Rated static load: 330000
Limit speed（Grease lubrication）: 1800
Limit speed（Oil lubrication）: 2400
