7018 ACE/HCP4ADBBMatched set of two super-precision, high-speed E design, single row angular contact ball bearings

SKU: 7018 ACE/HCP4ADBBMatched set of two super-precision, high-speed E design, single row angular conta

These matched sets of two super-precision, high-speed, E design, single row angular contact ball bearings are available in a variety of arrangements. Compared to the equivalent SKF B design high-speed bearings, these have a slightly higher speed capability and can accommodate heavier loads.

ID:143525

Universal matching bearing(s)
No

Dimensions - 7018 ACE/HCP4ADBB

Dimensions

d
90 mm
Bore diameter
D
140 mm
Outside diameter
B
48 mm
Width
d1
108.33 mm
Shoulder diameter of inner ring (large side face)
r1,2
min. 1.5 mm
Chamfer dimension
r3,4
min. 1 mm
Chamfer dimension

Abutment dimensions - 7018 ACE/HCP4ADBBAbutment dimensions - 7018 ACE/HCP4ADBB

Abutment dimensions

da
min. 97 mm
Diameter of shaft abutment
Db
max. 134.4 mm
Diameter of housing abutment
ra
max. 1.5 mm
Radius of fillet
rb
max. 1 mm
Radius of fillet
dn
111 mm
Position of oil nozzle

Calculation data

Basic dynamic load rating C
55 300 N
Basic static load rating C0
60 000 N
Fatigue load limit Pu
1 730 N
Attainable speeds
Contact SKF for the attainable speeds
Contact angle α
25 °
Ball diameter Dw
11.112 mm
Number of rows i
2
Number of balls (per bearing) z
28
Reference grease quantity (per bearing) Gref
14 cm³
Preload and stiffness (back-to-back, face-to-face)
Preload class
B
Preload G
920 N
Axial stiffness
329 N/µm
Correction factors for preload calculation
Correction factor dependent on bearing series and size f
1.1
Correction factor dependent on contact angle f1
0.99
Correction factor, preload class B f2B
1.03
Correction factor for hybrid bearings fHC
1.01
Factors for equivalent bearing load calculation
Axial load factor (back-to-back, face-to-face) Y1
0.92
Axial load factor (back-to-back, face-to-face) Y2
1.41
Axial load factor (back-to-back, face-to-face) Y0
0.76
Radial load factor (back-to-back, face-to-face) X1
1
Radial load factor (back-to-back, face-to-face) X2
0.67
Radial load factor (back-to-back, face-to-face) X0
1

Mass

Mass
2.22 kg

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