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Model: NACHI 21308AX - Cylindrical hole spherical roller bearings>
Bearing Size
d = 40D = 90
B = 23
da(min) = 50
Da(max) = 81
ra(max) = 1.5
Mass = 0.79
Basic load rating: 83800
Rated static load: 84400
Limit speed（Grease lubrication）: 5000
Limit speed（Oil lubrication） 6500
