Designations :NU 1964 ECMA
Principal dimensions(mm)
d :320
D :440
B :56
Basic load ratings(KN)
Cr :693
Cor :1 200
Fatigue load limit(r/min)
Pu :110
Speed ratings(r/min)
Reference speed :1 500
Limiting speed :2 000
Dimensions(mm)
d1≈ :–
D1≈ :404
F E :348
r1,2 :3
r3,4 :3
s :1.5
Abutment and fillet dimensions(mm)
da
min :333
da
max :347
db,Da
min :355
Da
max :427
ra
max :2.5
rb
max :2.5
Calculation factor
kr :0.11
Angle ring Designation :–
Mass(kg) :–
Dimensions(mm)
B1 :–
B2 :–
Weight(kg) :26
