This separable type of bearing system has a labyrinth seal consisting of a pair of side plates formed on both sides of the inner ring of model NAST.(Model number of the type attached with seals is NAST-ZZUU.)

 
Model No. Main dimensions Basic load rating Detail specifications CAD Dimensional drawing
Inner 
diameter
di
Inscribed bore 
diameter
dr
Outer 
diameter
D

B

C
Dynamic rating
C
Static rating
C0
2D (DXF) 3D
mm mm mm mm mm kN kN
NAST 6ZZ 6 19 14 13.8 4.12 4.55
NAST 8ZZ 8 24 14 13.8 5.68 5.89
NAST 10ZZ 10 30 16 15.8 9.7 9.67
NAST 12ZZ 12 32 16 15.8 10.4 10.9
NAST 15ZZ 15 35 16 15.8 12.3 14.3
NAST 17ZZ 17 40 20 19.8 17.4 20.9
NAST 20ZZ 20 47 20 19.8 19.2 24.5
NAST 25ZZ 25 52 20 19.8 20.7 28.4
NAST 30ZZ 30 62 25 24.8 30.3 45.4
NAST 35ZZ 35 72 25 24.8 32.2 50.6
NAST 40ZZ 40 80 26 25.8 35.7 61.6
NAST 45ZZ 45 85 26 25.8 37.1 66.4
NAST 50ZZ 50 90 26 25.8 38.7 71.8