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ZKLF1255-2RS-XL
Axial angular contact ball bearing
Axial angular contact ball bearings ZKLF..-2RS, double direction, for screw mounting, lip seals on both sides
Replaces
ZKLF 1255.2RS, ZKLF1255-2RS
Frequently bought together
Main Dimensions & Performance Data
| d | 12 mm | Bore diameter |
0 mm | Bore diameter upper tolerance | |
-0,005 mm | Bore diameter lower tolerance | |
| D | 55 mm | Outside diameter |
0 mm | Outside diameter upper tolerance | |
-0,01 mm | Outside diameter lower tolerance | |
| B | 25 mm | Width |
0 mm | Width upper tolerance | |
-0,25 mm | Width lower tolerance | |
| Ca | 18.800 N | Basic dynamic load rating, axial |
| C0a | 25.000 N | Basic static load rating, axial |
| Cua | 1.520 N | Fatigue load limit, axial |
| nG Grease | 9.200 1/min | Limiting speed for grease lubrication |
| nϑ | 3.800 1/min | Thermally safe operating speed |
| MR | 0,16 Nm | Bearing frictional torque |
| ≈m | 0,359 kg | Weight |
Mounting dimensions
| Da max | 33 mm | Maximum diameter of housing |
| da min | 16 mm | Minimum diameter shaft |
| t1 | 0,1 mm | Position tolerance of bore in the housing |
M6 | Size of fixing screws | |
| na | 3 | Number of holes in adjacent construction |
| ta | 120 ° | Pitch separation angle of holes in adjacent construction |
M6 | Connection thread for lubrication |
Dimensions
| d1 | 25 mm | Rib diameter inner ring |
| rmin | 0,3 mm | Minimum chamfer dimension |
| r1 min | 0,6 mm | Minimum chamfer dimension |
| J | 42 mm | Pitch circle diameter fixing holes |
| d2 | 6,8 mm | Fixing holes diameter |
| b | 3 mm | Width of extraction slot |
| I | 17 mm | Distance of extraction slot |
| n | 3 | Pitch quantity of fixing holes |
| t | 120 ° | Pitch separation angle of fixing holes |
| a | 60 ° | Contact angle |
Temperature range
| Tmin | -30 °C | Operating temperature min. |
| Tmax | 120 °C | Operating temperature max. |
Additional information
| caL | 375 N/µm | Rigidity axial |
| ckL | 50 Nm/mrad | Tilting rigidity |
| Mm | 0,068 kg*cm2 | Mass moment of inertia |
2 µm | Axial runout | |
ZM12 | Recommended INA precision locknut for radial locking | |
| MA | 8 Nm | Tightening torque for the recommended INA precision locknut |
5.307 N | Required locknut force axial |
Operating conditions for bearing ZKLF1255-2RS-XL
In work for ZKLF1255-2RS-XL
CO₂e caused by friction during operation
Comprehensive information with immediate calculations of the CO2e emissions of our rotative products in various application scenarios.
Preset calculation parameters
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CO₂e emissions
For Production info_outline
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Rating life
Total Rating Life (Lh10)
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Static safety (S0)
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