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Model: NACHI 231/530EW33 - Cylindrical hole spherical roller bearings>
Bearing Size
d = 530D = 870
B = 272
da(min) = 566
Da(max) = 834
ra(max) = 6
Mass = 658
Basic load rating: 7350000
Rated static load: 14600000
Limit speed（Grease lubrication）: 260
Limit speed（Oil lubrication） 340
