S7021 CD/P4ADBCMatched set of two super-precision, high-capacity, D design, single row angular contact ball bearings with seals

SKU: S7021 CD/P4ADBCMatched set of two super-precision, high-capacity, D design, single row angular contact ball bearings with seals

These matched sets of two super-precision, high-capacity, D design, single row angular contact ball bearings with seals are available in a variety of arrangements. They are designed to accommodate heavy loads at relatively high speeds under low to moderate operating temperatures.

ID:132111

Universal matching bearing(s)
No

Dimensions - S7021 CD/P4ADBC

Dimensions

d
105 mm
Bore diameter
D
160 mm
Outside diameter
B
52 mm
Width
d1
121.9 mm
Shoulder diameter of inner ring (large side face)
D4
152.8 mm
Recess diameter outer ring shoulder (small side face)
r1,2
min. 2 mm
Chamfer dimension
r3,4
min. 1 mm
Chamfer dimension

Abutment dimensions - S7021 CD/P4ADBC

Abutment dimensions

da
min. 114 mm
Diameter of shaft abutment
da
max. 121.3 mm
Diameter of shaft abutment
Db
max. 155 mm
Diameter of housing abutment
ra
max. 2 mm
Radius of fillet
rb
max. 1 mm
Radius of fillet

Calculation data

Basic dynamic load rating C
156 000 N
Basic static load rating C0
193 000 N
Fatigue load limit Pu
7 200 N
Attainable speeds
Contact SKF for the attainable speeds
Contact angle α
15 °
Ball diameter Dw
17.462 mm
Number of rows i
2
Number of balls (per bearing) z
21
Preload and stiffness (back-to-back, face-to-face)
Preload class
C
Preload G
1 440 N
Axial stiffness
223 N/µm
Correction factors for preload calculation
Correction factor dependent on bearing series and size f
1.15
Correction factor dependent on contact angle f1
1
Correction factor, preload class C f2C
1.05
Correction factor for hybrid bearings fHC
1
Factors for equivalent bearing load calculation
Calculation factor for equivalent loads f0
15.7
Additional factors for equivalent loads
Refer to Notes 1 and 2 below

Mass

Mass
3.22 kg

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