7220 CD/P4ADFBMatched set of two super-precision, high-capacity, D design, single row angular contact ball bearings

SKU: 7220 CD/P4ADFBMatched set of two super-precision, high-capacity, D design, single row angular contact ball bearings

These matched sets of two super-precision, high-capacity, D design, single row angular contact ball bearings are available in a variety of arrangements. They are designed for high-load capacity and relatively high speed operation and, compared to the equivalent SKF B and E design high-speed bearings, are best suited for heavier loads.

ID:131740

Universal matching bearing(s)
No

Dimensions - 7220 CD/P4ADFB

Dimensions

d
100 mm
Bore diameter
D
180 mm
Outside diameter
B
68 mm
Width
d2
124.7 mm
Shoulder diameter of inner ring (small side face)
D1
155.3 mm
Shoulder diameter of outer ring (large side face)
r1,2
min. 2.1 mm
Chamfer dimension

Abutment dimensions - 7220 CD/P4ADFBAbutment dimensions - 7220 CD/P4ADFB

Abutment dimensions

db
min. 112 mm
Diameter of shaft abutment
Da
max. 168 mm
Diameter of housing abutment
ra
max. 2 mm
Radius of fillet
dn
131.4 mm
Position of oil nozzle

Calculation data

Basic dynamic load rating C
255 000 N
Basic static load rating C0
270 000 N
Fatigue load limit Pu
9 800 N
Attainable speeds
Contact SKF for the attainable speeds
Contact angle α
15 °
Ball diameter Dw
25.4 mm
Number of rows i
2
Number of balls (per bearing) z
15
Reference grease quantity (per bearing) Gref
40.899 cm³
Preload and stiffness (back-to-back, face-to-face)
Preload class
B
Preload G
1 180 N
Axial stiffness
165 N/µm
Correction factors for preload calculation
Correction factor dependent on bearing series and size f
1.09
Correction factor dependent on contact angle f1
1
Correction factor, preload class B f2B
1.01
Correction factor for hybrid bearings fHC
1
Factors for equivalent bearing load calculation
Calculation factor for equivalent loads f0
14.5
Additional factors for equivalent loads
Refer to Notes 1 and 2 below

Mass

Mass
6.48 kg

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