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ZARF2068-TV
Needle roller/axial cylindrical roller bearing
Needle roller/axial cylindrical roller bearings ZARF, double direction, for screw mounting
Frequently bought together
Main Dimensions & Performance Data
| d | 20 mm | Bore diameter |
| D | 68 mm | Outside diameter |
| H | 46 mm | Hight |
| Ca | 33.500 N | Basic dynamic load rating, axial |
| C0a | 76.000 N | Basic static load rating, axial |
| Cr | 14.900 N | Basic dynamic load rating, radial |
| C0r | 22.400 N | Basic static load rating, radial |
| Cua | 6.400 N | Fatigue load limit, axial |
| Cur | 3.400 N | Fatigue load limit, radial |
| nG Oil | 7.000 1/min | Limiting speed for oil lubrication |
| nG Grease | 2.000 1/min | Limiting speed for grease lubrication |
| MRL | 0,5 Nm | Bearing friction torque |
| ≈m | 0,495 kg | Weight |
Mounting dimensions
| Da max | 43 mm | Maximum diameter of housing shoulder |
| da min | 33 mm | Minimum diameter shaft shoulder |
| t1 | 0,1 mm | Position bore in the housing |
Dimensions
| H1 | 29 mm | Height outer ring over wave washer |
| C | 14 mm | Width, outer ring |
| C1 | 8 mm | Distance to lubrication hole |
| D1 | 42 mm | Rip diameter shaft washer |
| B | 10 mm | Width, inner ring |
| rmin | 0,3 mm | Minimum chamfer dimension |
| r1 min | 0,6 mm | Minimum chamfer dimension |
| d1 | 3,2 mm | Diameter lubrication hole |
| J | 53 mm | Pitch circle diameter (holes) |
| n | 8 | Number of screwing holes |
| n x t | 45 ° | Split |
Temperature range
| Tmin | -30 °C | Operating temperature min. |
| Tmax | 120 °C | Operating temperature max. |
Additional information
| caL | 1.800 N/µm | Rigidity axial |
| ckL | 230 Nm/mrad | Tilting stiffness |
| Mm | 0,615 kg*cm2 | Mass moment of inertia |
1 µm | Axial runout | |
| radial | ZMA20/38 | Recommended INA precision locknut for radial locking (not included) |
| axial | AM20 | Recommended INA precision locknut for axial locking (not included) |
| MA | 18 Nm | Tightening torque nut |
8.972 N | Required locknut force | |
M6 | Screw size | |
| na | 8 | Number of screws |
| na x ta | 45 ° | Division (screwing holes) |
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Characteristics
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English
2018-03-15 | Technische Produktinformation | TPI 123 | Englisch
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