7020 CE/HCP4ALDTMatched set of two super-precision, high-speed E design, single row angular contact ball bearings

SKU: 7020 CE/HCP4ALDTMatched set of two super-precision, high-speed E design, single row angular contact ball bearings

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:131477

Universal matching bearing(s)
No

Dimensions - 7020 CE/HCP4ALDT

Dimensions

d
100 mm
Bore diameter
D
150 mm
Outside diameter
B
48 mm
Width
d1
117.38 mm
Shoulder diameter of inner ring (large side face)
d2
114.2 mm
Shoulder diameter of inner ring (small side face)
D1
132.61 mm
Shoulder diameter of outer ring (large side face)
b
2.2 mm
Width of lubrication groove
C1
13.4 mm
Distance from outer ring side face to lubrication groove / lubrication hole
C2
4 mm
Distance from outer ring side face to O-ring groove
C3
4 mm
Distance from outer ring side face to O-ring groove
r1,2
min. 1.5 mm
Chamfer dimension
r3,4
min. 1 mm
Chamfer dimension

Abutment dimensions - 7020 CE/HCP4ALDT

Abutment dimensions

da
min. 107 mm
Diameter of shaft abutment
db
min. 107 mm
Diameter of shaft abutment
Da
max. 143 mm
Diameter of housing abutment
Db
max. 144.4 mm
Diameter of housing abutment
ra
max. 1.5 mm
Radius of fillet
rb
max. 1 mm
Radius of fillet

Calculation data

Basic dynamic load rating C
72 800 N
Basic static load rating C0
80 000 N
Fatigue load limit Pu
2 200 N
Attainable speeds
Contact SKF for the attainable speeds
Contact angle α
15 °
Ball diameter Dw
12.7 mm
Number of rows i
2
Number of balls (per bearing) z
27
Reference grease quantity (per bearing) Gref
17 cm³
Correction factors for preload calculation
Correction factor dependent on bearing series and size f
1.12
Correction factor dependent on contact angle f1
1
Correction factor for hybrid bearings fHC
1.01
Factors for equivalent bearing load calculation
Calculation factor for equivalent loads f0
9.5
Additional factors for equivalent loads
Refer to Notes 1 and 2 below

Mass

Mass
2.25 kg

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