SKF S7204 CD/P4A Angular Contact Ball Bearing

Details

Technical specification

DIMENSIONS

d		20 mm
D		47 mm
B		14 mm
d1		29.1 mm
d2		29.1 mm
D2		40.9 mm
r1,2		min. 1 mm
r3,4		min. 0.3 mm
a		11.6 mm

ABUTMENT DIMENSIONS

da		min. 25.6 mm
da		max. 28.5 mm
db		min. 25.6 mm
db		max. 28.5 mm
Da		max. 41.4 mm
Db		max. 44.6 mm
ra		max. 1 mm
rb		max. 0.3 mm

CALCULATION DATA

Basic dynamic load rating	C	11.9 kN
Basic static load rating	C0	5.85 kN
Fatigue load limit	Pu	0.245 kN
Attainable speed for grease lubrication		36000 r/min
Contact angle	?	15 °
Ball diameter	Dw	7.938 mm
Number of balls	z	11

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

Preload class A	GA	45 N
Static axial stiffness, preload class A		25 N/µm
Preload class B	GB	90 N
Static axial stiffness, preload class B		33 N/µm
Preload class C	GC	180 N
Static axial stiffness, preload class C		45 N/µm
Preload class D	GD	360 N
Static axial stiffness, preload class D		63 N/µm

CALCULATION FACTORS

Calculation factor	f	1.03
Calculation factor	f1	1
Calculation factor	f2A	1
Calculation factor	f2B	1.01
Calculation factor	f2C	1.03
Calculation factor	f2D	1.05
Calculation factor	fHC	1
Calculation factor	f0	8.7

MASS

Mass bearing		0.11 kg