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Model: NACHI 1220K - Conical bore self-aligning ball bearing>
Bearing Size
d = 100D = 180
B = 34
da(min) = 112
Da(max) = 68
ra(max) = 2
Mass = 3.7
Basic load rating: 69000
Rated static load: 29700
Limit speed（Grease lubrication）: 3100
Limit speed（Oil lubrication） 3700
