SKF 7020ACE/P4A Angular contact ball bearings,SKF 7020 ACE/P4A 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/P4A

7020 ACE/P4A

Dimensions
d 100mm
D 150mm
B 24mm
d1 117.38mm
d2 114.2mm
D1 132.61mm
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: 35111 591/710 JR 6003-2Z 6020-2Z 6200-Z 7320 BEGAM FYJ 20 TF PBMF 250270100 M1G1 PSM 061212 A51 S7013 ACB/P4A SAF 22340 SAFS 22530 x 5.1/8 TLC SSAFS 23044 KAT x 7.7/8 STO 12 W 619/5 R-2Z

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