728 CD/P4ADTMatched set of two super-precision, high-capacity, D design, single row angular contact ball bearings

SKU: 728 CD/P4ADTMatched set of two super-precision, high-capacity, D design, single row angular contac

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:132455

Universal matching bearing(s)
No

Dimensions - 728 CD/P4ADT

Dimensions

d
8 mm
Bore diameter
D
24 mm
Outside diameter
B
16 mm
Width
d1
13.1 mm
Shoulder diameter of inner ring (large side face)
d2
13.1 mm
Shoulder diameter of inner ring (small side face)
D1
18.9 mm
Shoulder diameter of outer ring (large side face)
r1,2
min. 0.3 mm
Chamfer dimension
r3,4
min. 0.2 mm
Chamfer dimension

Abutment dimensions - 728 CD/P4ADTAbutment dimensions - 728 CD/P4ADT

Abutment dimensions

da
min. 10.4 mm
Diameter of shaft abutment
db
min. 10.4 mm
Diameter of shaft abutment
Da
max. 21.6 mm
Diameter of housing abutment
Db
max. 22.2 mm
Diameter of housing abutment
ra
max. 0.3 mm
Radius of fillet
rb
max. 0.2 mm
Radius of fillet
dn
14.3 mm
Position of oil nozzle

Calculation data

Basic dynamic load rating C
6 050 N
Basic static load rating C0
2 750 N
Fatigue load limit Pu
116 N
Attainable speeds
Contact SKF for the attainable speeds
Contact angle α
15 °
Ball diameter Dw
4.762 mm
Number of rows i
2
Number of balls (per bearing) z
8
Reference grease quantity (per bearing) Gref
0.228 cm³
Correction factors for preload calculation
Correction factor dependent on bearing series and size f
1.02
Correction factor dependent on contact angle f1
1
Correction factor for hybrid bearings fHC
1
Factors for equivalent bearing load calculation
Calculation factor for equivalent loads f0
7.9
Additional factors for equivalent loads
Refer to Notes 1 and 2 below

Mass

Mass
0.034 kg

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