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Model: NACHI 51209 - One-way thrust ball bearing (Flatbackface)>
Bearing Size
d = 45D = 73
T = 20
r = 1
D1(min)= 47
d1(max) = 73
da(min) = 62
Da1(max) = 56
ra(max) = 1
Mass = 0.32
Basic load rating: 47500
Rated static load: 105000
Limit speed（Grease lubrication）: 2600
Limit speed（Oil lubrication） 3900
