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

7020 ACB/P4A

Dimensions
d 100mm
D 150mm
B 24mm
d1 118.7mm
d2 116.15mm
D2 135mm
r1,2min.1.5mm
r3,4min.1mm
a 41.4mm
Abutment dimensions
damin.107mm
dbmin.107mm
Damax.143mm
Dbmax.145.4mm
ramax.1.5mm
rbmax.1mm
dn 120mm
Calculation data
Basic dynamic load ratingC 35.8kN
Basic static load ratingC0 42.5kN
Fatigue load limitPu 0.98kN
Attainable speed for grease lubrication  10000r/min
Attainable speed for oil-air lubrication  15000r/min
Ball diameterDw 10.319mm
Number of ballsz 27 
Reference grease quantityGref 15.34cm³
Preload and stiffness (back-to-back, face-to-face)
Preload class AGA 165N
Static axial stiffness, preload class A  152N/µm
Preload class BGB 330N
Static axial stiffness, preload class B  194N/µm
Preload class CGC 990N
Static axial stiffness, preload class C  294N/µm
Calculation factors
Calculation factorf 1.08 
Calculation factorf1 0.99 
Calculation factorf2A 1 
Calculation factorf2B 1.01 
Calculation factorf2C 1.04 
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  1.36kg
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Hot number: 1950211 32936 418006 62211-2RS1 90853 9983 BT4B 328955 BG/HA1VA901 FYTB 5/8 FM FYWK 30 YTH N 1013 KTNHA/SP NNU 4940 B/SPW33 RN-2.5x21.8 BF/G2 S7014 CE/P4A SI 25 ES W 627/4-2Z

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