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