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Model: NACHI 51238 - One-way thrust ball bearing (Flatbackface)>
Bearing Size
d = 190D = 270
T = 62
r = 2
D1(min)= 194
d1(max) = 267
da(min) = 238
Da1(max) = 222
ra(max) = 2
Mass = 11.7
Basic load rating: 310000
Rated static load: 1060000
Limit speed（Grease lubrication）: 740
Limit speed（Oil lubrication） 1100
