SKF 707 CD/HCP4A Angular Contact Ball Bearing

Details

Technical specification

DIMENSIONS

d		7 mm
D		19 mm
B		6 mm
d1		10.8 mm
d2		10.8 mm
D1		15.2 mm
r1,2		min. 0.3 mm
r3,4		min. 0.15 mm
a		4.8 mm

ABUTMENT DIMENSIONS

da		min. 9 mm
db		min. 9 mm
Da		max. 17 mm
Db		max. 18.2 mm
ra		max. 0.3 mm
rb		max. 0.15 mm
dn		11.7 mm

CALCULATION DATA

Basic dynamic load rating	C	2.51 kN
Basic static load rating	C0	0.98 kN
Fatigue load limit	Pu	0.03 kN
Attainable speed for grease lubrication		120000 r/min
Attainable speed for oil-air lubrication		190000 r/min
Contact angle	?	15 °
Ball diameter	Dw	3.572 mm
Number of balls	z	8
Reference grease quantity	Gref	0.12 cm³

PRELOAD AND STIFFNESS (BACK-TO-BACK, FACE-TO-FACE)

Preload class A	GA	8 N
Static axial stiffness, preload class A		10 N/µm
Preload class B	GB	15 N
Static axial stiffness, preload class B		13 N/µm
Preload class C	GC	30 N
Static axial stiffness, preload class C		17 N/µm
Preload class D	GD	60 N
Static axial stiffness, preload class D		24 N/µm

CALCULATION FACTORS

Calculation factor	f	1.03
Calculation factor	f1	1
Calculation factor	f2A	1
Calculation factor	f2B	1.02
Calculation factor	f2C	1.05
Calculation factor	f2D	1.09
Calculation factor	fHC	1.02
Calculation factor	f0	8.1

MASS

Mass bearing		0.007 kg