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NA4903-XL
Radial roller bearing
Radial roller bearing NA..-XL
Replaces
NA4903
Preferred product


Main Dimensions & Performance Data
d | 17 mm | Bore diameter |
D | 30 mm | Outside diameter |
B | 13 mm | Width |
Cr | 12.400 N | Basic dynamic load rating, radial |
C0r | 14.600 N | Basic static load rating, radial |
Cur | 2.650 N | Fatigue load limit, radial |
nG | 20.000 1/min | Limiting speed |
nG Grease | 12.000 1/min | Limiting speed for grease lubrication |
nϑr | 10.200 1/min | Reference speed |
≈m | 0,038 kg | Weight |
Dimensions
rmin | 0,3 mm | Minimum chamfer dimension |
F | 22 mm | Raceway diameter inner ring |
s | 0,5 mm | Axial displacement |
Temperature range
Tmin | -30 °C | Operating temperature min. |
Tmax | 120 °C | Operating temperature max. |
Your current product variant
Cage | Standard | |
Radial internal clearance | CN (Group N) | Normal internal clearance |
Lubrication hole | With | With |
Coating | Without | |
Sealing | Without | |
Special features | Without | |
Number of rolling element rows | 1 | Single-row design |
Characteristics
Operating conditions for bearing NA4903-XL
In work for NA4903-XL
CO₂e caused by friction during operation
Comprehensive information with immediate calculations of the CO2e emissions of our rotative products in various application scenarios.

Load
*MandatoryMotion Influences
*Mandatory Preset calculation parameters
Arcanol MULTI2
Greasenormal cleanliness
Contamination70°C
Operating Temperature20°C
Ambient Temperature Choose your calculations
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CO₂e emissions
For Production info_outline
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Rating life
Total Rating Life (Lh10)
-
Static safety (S0)
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