ZARF2080-TV INA Catalog

Needle roller/axial cylindrical roller bearings ZARF, double direction, for screw mounting

d	Bore diameter	20 mm
D	Outside diameter	80 mm
H	Hight	60 mm
Ca	Basic dynamic load rating, axial	64.000 N
C0a	Basic static load rating, axial	141.000 N
Cr	Basic dynamic load rating, radial	22.600 N
C0r	Basic static load rating, radial	36.000 N
Cua	Fatigue load limit, axial	13.100 N
Cur	Fatigue load limit, radial	5.200 N
nG Oil	Limiting speed for oil lubrication	6.000 1/min
nG Grease	Limiting speed for grease lubrication	1.500 1/min
MRL	Bearing friction torque	1,3 Nm
≈m	Weight	0,91 kg
Da max	Maximum diameter of housing shoulder	53 mm
da min	Minimum diameter shaft shoulder	38 mm
H1	Height outer ring over wave washer	38 mm
C	Width, outer ring	18 mm
C1	Distance to lubrication hole	10 mm
D1	Rip diameter shaft washer	52 mm
B	Width, inner ring	12,5 mm
rmin	Minimum chamfer dimension	0,3 mm
r1 min	Minimum chamfer dimension	0,6 mm
d1	Diameter lubrication hole	3,2 mm
J	Pitch circle diameter (holes)	63 mm
n	Number (screwing holes)	12
n x t	Split	30 °
Tmin	Operating temperature min.	-30 °C
Tmax	Operating temperature max.	120 °C
caL	Rigidity axial	2.300 N/µm
ckL	Tilting stiffness	400 Nm/mrad
Mm	Mass moment of inertia	1,98 kg * cm²
radial	Recommended INA precision locknut for radial locking (not included)	ZMA20/52
axial	Recommended INA precision locknut for axial locking (not included)	AM20
MA	Tightening torque nut	38 Nm
na	Number of screws	12
na x ta	Division (screwing holes)	30 °
Cage	plastic cage	TV