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QJ1252-N2-MPA
Roulement à billes à 4 points de contact
Roulements à quatre points de contact QJ12..-N2-MPA, encoches de retenue, cage massive en laiton
Replaces
QJ1252N2MPA
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dimensions principale & données de performance
d | 260 mm | Alésage |
D | 480 mm | Diamètre extérieur |
B | 90 mm | Largeur |
Cr | 760.000 N | Charge dyn. de base, radiale |
C0r | 1.480.000 N | Charge stat. de base, radiale |
Cur | 43.500 N | Limite à la fatigue, radiale |
nG | 2.360 1/min | Vitesse limite |
nϑr | 1.210 1/min | Vitesse de base |
≈m | 77,6 kg | Weight |
Cotes de montage
da min | 280 mm | Diamètre minimum épaulement arbre |
Da max | 460 mm | Diamètre maximum épaulement du logement |
ra max | 4 mm | Rayon de gorge maximum |
Dimensions
rmin | 5 mm | Minimum chamfer dimension |
D1 | 398,2 mm | Diamètre d'épaulement bague extérieure |
d1 | 342,45 mm | Diamètre d'épaulement bague intérieure |
a | 370 mm | Distance sommet des cones de pression |
an | 15 mm | Profondeur rainure |
bn | 12,5 mm | Largeur rainure |
rn | 2,5 mm | Rayon encoche de retenue |
45 ° | Angle de la rainure | |
α | 45 ° | Angle de contact |
Plage de température
Tmin | -30 °C | Température de fonctionnement min. |
Tmax | 200 °C | Température de fonctionnement max. |
Operating conditions for bearing QJ1252-N2-MPA
In work for QJ1252-N2-MPA
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)
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Static safety (S0)
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