SKF S7204 ACD/P4A Angular contact ball bearings, super-precision

SKF S7204 ACD/P4A Angular contact ball bearings, super-precision
Angular contact ball bearings, super-precision

Tolerances: P4A, P4, PA9A, P2, Chamfer dimensionsRecommended shaft and housing fits: shafts, housingsValues for ISO tolerance classes: shafts, housingsSpeed dependent initial grease fill →Initial grease fillClamping and fitting forces: D design, E design, B design

Designation suffixes H, H1, L and L1identify variants for direct oil-air lubrication(→Variants).

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		15	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		11.4	kN
Basic static load rating	C0		5.6	kN
Fatigue load limit	Pu		0.236	kN
Attainable speed for grease lubrication			32000	r/min
Ball diameter	Dw		7.938	mm
Number of balls	z		11
Preload and stiffness (back-to-back, face-to-face)
Preload class A	GA		70	N
Static axial stiffness, preload class A			61	N/µm
Preload class B	GB		140	N
Static axial stiffness, preload class B			79	N/µm
Preload class C	GC		280	N
Static axial stiffness, preload class C			102	N/µm
Preload class D	GD		560	N
Static axial stiffness, preload class D			135	N/µm
Calculation factors
Calculation factor	f		1.03
Calculation factor	f1		0.99
Calculation factor	f2A		1
Calculation factor	f2B		1.01
Calculation factor	f2C		1.02
Calculation factor	f2D		1.05
Calculation factor	fHC		1
Calculation factor	e		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

0.11

kg

<input type="hidden" name="moreInfoUrl" value="">