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QJ234 four-point contact ball bearing 170x310x52mm(also called rolling mill bearing, same to QJ234N2, QJ234N2MPA) is used in rolling mills for the production of hot-rolled and cold-rolled steel products. For more information about QJ234 four-point contact ball bearing 170x310x52mm, contact us!
Boundary dimensions(mm)
Basic load rating (kN)
Speed rating
Designation
(rpm)
d
D
B
rmin
Cr
Cor
Grease
Oil
170
310
52
4
357
540
1100
1500
QJ234
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