SKF 7018ACE/HCP4AL Angular contact ball bearings,SKF 7018 ACE/HCP4AL 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/HCP4AL

7018 ACE/HCP4AL

Dimensions
d 90mm
D 140mm
B 24mm
d1 108.33mm
d2 105.5mm
D1 121.66mm
b 2.6mm
C1 13.2mm
C2 4.3mm
C3 4.3mm
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: 31319 6009-2RS1 629 72212/72487 85x120x12 CRW1 R 950x1006x20 HDS2 R BT4B 334015 BG/HA1VA901 BD-C 2213 KTN9-H 313 E N 319 ECM HE 315 PCM 200205100 M PCMW 487402 M PCZ 3640 E PWM 556340 W 623-2RZ

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