Basic size (mm)
d :8
D :28
B :9
Basic load rating (kN)
C :4,62
Co :1,96
Fatigue load limit (kN)
Pu :0,083
Rated speed (r/min)
Reference speed :60000
Limit speed :30000
Weight (kg) :0,030
Model
Seals on both sides :638-2RZ
With seal on one side :638-RZ
Dimension(mm)
d :8
d1 :14,8
d2 :-
D2 :22,6
r1,2 :0,3
Shoulder and chamfer size
da :10,4
da :-
Da :25,6
ra :0,3
Calculation factor
kr :0,025
f0 :12
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