SKF 7211CD/P4A Angular contact ball bearings,SKF 7211 CD/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 7211 CD/P4A

7211 CD/P4A

Dimensions
d 55mm
D 100mm
B 21mm
d1 68.9mm
d2 68.9mm
D1 86.1mm
r1,2min.1.5mm
r3,4min.0.6mm
a 21mm
Abutment dimensions
damin.64mm
dbmin.64mm
Damax.91mm
Dbmax.95.8mm
ramax.1.5mm
rbmax.0.6mm
dn 72.6mm
Calculation data
Basic dynamic load ratingC 55.3kN
Basic static load ratingC0 43kN
Fatigue load limitPu 1.8kN
Attainable speed for grease lubrication  14000r/min
Attainable speed for oil-air lubrication  22000r/min
Ball diameterDw 14.288mm
Number of ballsz 15 
Reference grease quantityGref 8.595cm³
Preload and stiffness (back-to-back, face-to-face)
Preload class AGA 210N
Static axial stiffness, preload class A  72N/µm
Preload class BGB 420N
Static axial stiffness, preload class B  98N/µm
Preload class CGC 840N
Static axial stiffness, preload class C  137N/µm
Preload class DGD 1680N
Static axial stiffness, preload class D  197N/µm
Calculation factors
Calculation factorf 1.08 
Calculation factorf1 1 
Calculation factorf2A 1 
Calculation factorf2B 1.01 
Calculation factorf2C 1.03 
Calculation factorf2D 1.05 
Calculation factorfHC 1 
Calculation factorf0 14.5 
Mass
Mass bearing  0.61kg
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Hot number: 12x24x6 HMSA7P2 R 2305 E-2RS1KTN9 + H 2305 23277 32010 X 6256 M 7011 ACB/HCP4A 71928 ACD/P4AL 7216 BEGAPH BS2-2318-2RS5/VT143 K 81152 M NKS 24 PBMF 10512550 M1G1 SAFS 23024 KATLC x 4.3/16 SYNT 100 LW W 606 R-2RS1

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