SKF 7020ACE/P4AL Angular contact ball bearings,SKF 7020 ACE/P4AL Super-precision bearings-BEARINGPOWER Co.,Ltd.
Bearings, units and housings -- Super-precision bearings -- Angular contact ball bearings -- Angular contact ball bearings, super-precision -- SKF 7020 ACE/P4AL

7020 ACE/P4AL

Dimensions
d 100mm
D 150mm
B 24mm
d1 117.38mm
d2 114.2mm
D1 132.61mm
b 2.2mm
C1 13.4mm
C2 4mm
C3 4mm
r1,2min.1.5mm
r3,4min.1mm
a 41.4mm
Abutment dimensions
damin.107mm
dbmin.107mm
Damax.143mm
Dbmax.144.4mm
ramax.1.5mm
rbmax.1mm
dn 120.4mm
Calculation data
Basic dynamic load ratingC 42.3kN
Basic static load ratingC0 38kN
Fatigue load limitPu 1.43kN
Attainable speed for grease lubrication  11200r/min
Attainable speed for oil-air lubrication  17500r/min
Ball diameterDw 12.7mm
Number of ballsz 27 
Reference grease quantityGref 17cm³
Preload and stiffness (back-to-back, face-to-face)
Preload class AGA 390N
Static axial stiffness, preload class A  220N/µm
Preload class BGB 1150N
Static axial stiffness, preload class B  330N/µm
Preload class CGC 2310N
Static axial stiffness, preload class C  435N/µm
Calculation factors
Calculation factorf 1.12 
Calculation factorf1 0.99 
Calculation factorf2A 1 
Calculation factorf2B 1.03 
Calculation factorf2C 1.06 
Calculation factorfHC 1 
Calculation factore 0.68 
Calculation factor (single, tandem)Y2 0.87 
Calculation factor (single, tandem)Y0 0.38 
Calculation factor (single, tandem)X2 0.41 
Calculation factor (back-to-back, face-to-face)Y1 0.92 
Calculation factor (back-to-back, face-to-face)Y2 1.41 
Calculation factor (back-to-back, face-to-face)Y0 0.76 
Calculation factor (back-to-back, face-to-face)X2 0.67 
Mass
Mass bearing  1.26kg
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Hot number: 1013240 42x65x12 HMS5 V 7007 CD/P4AH 7315 BEGAP 8x22x7 HMSA10 V BT2B 328020 NKIB 5908 NU 212 ECML NU 2209 ECJ SAF 22538 x 7 TLC SAF 23028 KAT x 4.7/8 SY 35 FM SYWK 505 Y W 026 W 040

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