SKF 7018ACE/HCP4A Angular contact ball bearings,SKF 7018 ACE/HCP4A Super-precision bearings-BEARINGPOWER Co.,Ltd.
Bearings, units and housings -- Super-precision bearings -- Angular contact ball bearings -- Angular contact ball bearings, super-precision -- SKF 7018 ACE/HCP4A

7018 ACE/HCP4A

Dimensions
d 90mm
D 140mm
B 24mm
d1 108.33mm
d2 105.5mm
D1 121.66mm
r1,2min.1.5mm
r3,4min.1mm
a 39mm
Abutment dimensions
damin.97mm
dbmin.97mm
Damax.133mm
Dbmax.134.4mm
ramax.1.5mm
rbmax.1mm
dn 111mm
Calculation data
Basic dynamic load ratingC 33.8kN
Basic static load ratingC0 30kN
Fatigue load limitPu 1.2kN
Attainable speed for grease lubrication  14000r/min
Attainable speed for oil-air lubrication  22000r/min
Ball diameterDw 11.112mm
Number of ballsz 28 
Reference grease quantityGref 14cm³
Preload and stiffness (back-to-back, face-to-face)
Preload class AGA 300N
Static axial stiffness, preload class A  218N/µm
Preload class BGB 920N
Static axial stiffness, preload class B  329N/µm
Preload class CGC 1840N
Static axial stiffness, preload class C  432N/µm
Calculation factors
Calculation factorf 1.1 
Calculation factorf1 0.99 
Calculation factorf2A 1 
Calculation factorf2B 1.03 
Calculation factorf2C 1.06 
Calculation factorfHC 1.01 
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  1.11kg
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Hot number: 38.1x54.4x12.8 TP 71824 CD/HCP4 FSAF 1317 TLC FYWK 50 LTHR HJ 219 EC HME 31/600 IR 60x68x25 KMFE 12 NNF 5017 ADA-2LSV NNU 41/1120 K30M/W33 OKBS 121 OKTC 385 SY 50 LDW W 6201-2RZ YAR 203-008-2F

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