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Model: NACHI 1311 - Cylindrical hole self-aligning ball bearing>
Bearing Size
d = 55D = 120
B = 29
da(min) = 64
Da(max) = 111
ra(max) = 2
Mass = 1.58
Basic load rating: 51300
Rated static load: 17900
Limit speed（Grease lubrication）: 5100
Limit speed（Oil lubrication） 6200
