SKF 71918ACE/P4A Angular contact ball bearings,SKF 71918 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 71918 ACE/P4A

71918 ACE/P4A

Dimensions
d 90mm
D 125mm
B 18mm
d1 101mm
d2 97.9mm
D1 114.22mm
r1,2min.1.1mm
r3,4min.0.6mm
a 35.9mm
Abutment dimensions
damin.96mm
dbmin.93.2mm
Damax.119mm
Dbmax.121.8mm
ramax.1mm
rbmax.0.6mm
dn 103.5mm
Calculation data
Basic dynamic load ratingC 28.6kN
Basic static load ratingC0 23.2kN
Fatigue load limitPu 0.915kN
Attainable speed for grease lubrication  13000r/min
Attainable speed for oil-air lubrication  20000r/min
Ball diameterDw 11.112mm
Number of ballsz 24 
Reference grease quantityGref 7cm³
Preload and stiffness (back-to-back, face-to-face)
Preload class AGA 260N
Static axial stiffness, preload class A  164N/µm
Preload class BGB 780N
Static axial stiffness, preload class B  247N/µm
Preload class CGC 1560N
Static axial stiffness, preload class C  324N/µm
Calculation factors
Calculation factorf 1.19 
Calculation factorf1 0.99 
Calculation factorf2A 1 
Calculation factorf2B 1.04 
Calculation factorf2C 1.07 
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  0.54kg
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Hot number: 18 VA R 19010 27370 316639 AG 511/900 F 71914 CB/P4A BT2B 332237 A/HA1 FYTJ 25 KF H 3130 L PBM 152216 M1G1 PCM 160165100 E PL 630 PWKR 90.2RS S7019 CD/P4A W 6001-2RZ

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