What are you looking for?

SKF 708 ACE/HCP4AH Angular Contact Ball Bearing

BRAND : SKF

Technical specification

Details

Technical specification

DIMENSIONS

d
8 mm
D
22 mm
B
7 mm
d1
12.1 mm
d2
11.5 mm
D1
17.9 mm
K
0.5 mm
C1
4.25 mm
r1,2
min. 0.3 mm
r3,4
min. 0.15 mm
a
7.1 mm

ABUTMENT DIMENSIONS

da
min. 10 mm
db
min. 10 mm
Da
max. 20 mm
Db
max. 20.6 mm
ra
max. 0.3 mm
rb
max. 0.15 mm
dn
13.3 mm

CALCULATION DATA

Basic dynamic load ratingC
2.29 kN
Basic static load ratingC0
0.765 kN
Fatigue load limitPu
0.024 kN
Attainable speed for grease lubrication
115000 r/min
Attainable speed for oil-air lubrication
180000 r/min
Contact angle?
25 °
Ball diameterDw
3.969 mm
Number of ballsz
8
Reference grease quantityGref
0.17 cm³
PRELOAD AND STIFFNESS (BACK-TO-BACK, FACE-TO-FACE)
Preload class AGA
20 N
Static axial stiffness, preload class A
26 N/µm
Preload class BGB
60 N
Static axial stiffness, preload class B
38 N/µm
Preload class CGC
120 N
Static axial stiffness, preload class C
50 N/µm
CALCULATION FACTORS
Calculation factorf
1.02
Calculation factorf1
0.99
Calculation factorf2A
1
Calculation factorf2B
1.03
Calculation factorf2C
1.06
Calculation factorfHC
1.01
Calculation factore
0.68
Calculation factor (single, tandem)Y2
0.87
Calculation factor (single, tandem)Y0
0.38
Calculation factor (single, tandem)X2
0.41
Calculation factor (back-to-back, face-to-face)Y1
0.92
Calculation factor (back-to-back, face-to-face)Y2
1.41
Calculation factor (back-to-back, face-to-face)Y0
0.76
Calculation factor (back-to-back, face-to-face)X2
0.67

MASS

Mass bearing
0.011 kg