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Model: NACHI 21311AX - Cylindrical hole spherical roller bearings>
Bearing Size
d = 55D = 120
B = 29
da(min) = 65
Da(max) = 110
ra(max) = 2
Mass = 1.77
Basic load rating: 148000
Rated static load: 171000
Limit speed（Grease lubrication）: 4000
Limit speed（Oil lubrication） 5000
