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Model: NACHI 5205Z - Single dustproof double row angular contact ball bearing>
Bearing Size
d = 25D = 52
B = 20.6
da(min) = 31
Da(max) = 46
ra(max) = 1
Mass = 0.19
Basic load rating: 21800
Rated static load: 15100
Limit speed（Grease lubrication）: 9500
Limit speed（Oil lubrication）: 13000
