7048 ACD/P4ADBCMatched set of two super-precision, high-capacity, D design, single row angular contact ball bearings

SKU: 7048 ACD/P4ADBCMatched 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:146162

Universal matching bearing(s)
No

Dimensions - 7048 ACD/P4ADBC

Dimensions

d
240 mm
Bore diameter
D
360 mm
Outside diameter
B
112 mm
Width
d1
277 mm
Shoulder diameter of inner ring (large side face)
r1,2
min. 3 mm
Chamfer dimension
r3,4
min. 1.5 mm
Chamfer dimension

Abutment dimensions - 7048 ACD/P4ADBCAbutment dimensions - 7048 ACD/P4ADBC

Abutment dimensions

da
min. 253 mm
Diameter of shaft abutment
Db
max. 354 mm
Diameter of housing abutment
ra
max. 2.5 mm
Radius of fillet
rb
max. 1.5 mm
Radius of fillet
dn
287 mm
Position of oil nozzle

Calculation data

Basic dynamic load rating C
527 000 N
Basic static load rating C0
930 000 N
Fatigue load limit Pu
22 800 N
Attainable speeds
Contact SKF for the attainable speeds
Contact angle α
25 °
Ball diameter Dw
38.1 mm
Number of rows i
2
Number of balls (per bearing) z
22
Reference grease quantity (per bearing) Gref
216 cm³
Preload and stiffness (back-to-back, face-to-face)
Preload class
C
Preload G
8 200 N
Axial stiffness
979 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
0.99
Correction factor, preload class C f2C
1.05
Correction factor for hybrid bearings fHC
1
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
34.2 kg

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