INA ZARF75185-TV bearings
ZARF75185-TV, Needle roller/axial cylindrical roller bearings ZARF, double direction, for screw mounting

- Bore diameter
- 75.000 mm
- Outside diameter
- 185.000 mm
- Total width
- 100.000 mm
- Cr
- 81000 N
- C0r
- 132000 N
- Ca
- 290000 N
- C0a
- 890000 N
- Limiting speed
- 2100 r/min
- Net weight
- 8.716 kg
- Measurement system
- Metric
- Sealing
- Without
- Cage
- Plastic
- Bearing material
- Steel
- Rolling material
- Steel
- Lubricant in bearing
- Without
- Relubrication feature
- With
In stock
Technical specification for INA ZARF75185-TV
Part Number | ZARF75185-TV | |
---|---|---|
Main Dimensions & Performance Data | ||
d | 75 mm | Bore diameter |
D | 185 mm | Outside diameter |
H | 100 mm | Hight |
Ca | 290000 N | Basic dynamic load rating, axial |
C0a | 890000 N | Basic static load rating, axial |
Cr | 81000 N | Basic dynamic load rating, radial |
C0r | 132000 N | Basic static load rating, radial |
Cua | 85000 N | Fatigue load limit, axial |
Cur | 19100 N | Fatigue load limit, radial |
nG Oil | 2100 1/min | Limiting speed for oil lubrication |
nG Grease | 700 1/min | Limiting speed for grease lubrication |
MRL | 8 Nm | Bearing friction torque |
m | ≈ 8.716 kg | Weight |
Mounting dimensions | ||
Da max | 136 mm | Maximum diameter of housing shoulder |
da min | 113 mm | Minimum diameter shaft shoulder |
t1 | 0.4 mm | Position bore in the housing |
Dimensions | ||
H1 | 62 mm | Height outer ring over wave washer |
C | 27 mm | Width, outer ring |
C1 | 15 mm | Distance to lubrication hole |
D1 | 135 mm | Rip diameter shaft washer |
B | 21 mm | Width, inner ring |
rmin | 0.3 mm | Minimum chamfer dimension |
r1 min | 1 mm | Minimum chamfer dimension |
d1 | 6 mm | Diameter lubrication hole |
J | 155 mm | Pitch circle diameter (holes) |
n | 12 | Number of screwing holes |
n x t | 30° | Split |
Additional information | ||
CaL | 6600 N/µm | Rigidity axial |
CkL | 8500 Nm/mrad | Tilting stiffness |
Mm | 149 kg*cm2 | Mass moment of inertia |
2µm | Axial runout | |
radial | ZMA75/125 | Recommended INA precision locknut for radial locking (not included) |
axial | AM75 | Recommended INA precision locknut for axial locking (not included) |
MA | 580 Nm | Tightening torque nut |
72971 N | Required locknut force | |
M12 | Screw size | |
na | 12 | Number of screws |
na x ta | 30° | Division (screwing holes) |

INA ZARF75185-TV - Needle roller/axial cylindrical roller bearings ZARF, double direction, for screw mounting.
ZARF75185-TV INA axial/radial roller bearings for screw drives are double direction, high precision axial cylindrical roller bearings with a radial bearing component. The inner ring, outer ring and cylindrical roller and cage assemblies are matched to each other such that the bearing is axially clearance-free after preloading by means of an INA precision locknut.
ZARF75185-TV INA is with fixing holes in the outer ring, which is screw mounted directly on the adjacent construction.
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