SKF S7011 CB/P4A Angular contact ball bearings, super-precision

SKF S7011 CB/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		55	mm
D		90	mm
B		18	mm
d1		68.18	mm
d2		66.65	mm
D2		79.39	mm
r1,2	min.	1.1	mm
r3,4	min.	0.6	mm
a		18.8	mm

Abutment dimensions

da	min.	61	mm
da	max.	67.6	mm
db	min.	61	mm
db	max.	66.1	mm
Da	max.	84	mm
Db	max.	86.8	mm
ra	max.	1	mm
rb	max.	0.6	mm

Calculation data

Basic dynamic load rating	C		18.6	kN
Basic static load rating	C0		19	kN
Fatigue load limit	Pu		0.465	kN
Attainable speed for grease lubrication			22000	r/min
Ball diameter	Dw		6.747	mm
Number of balls	z		26
Preload and stiffness (back-to-back, face-to-face)
Preload class A	GA		38	N
Static axial stiffness, preload class A			38	N/µm
Preload class B	GB		92	N
Static axial stiffness, preload class B			50	N/µm
Preload class C	GC		275	N
Static axial stiffness, preload class C			80	N/µm
Calculation factors
Calculation factor	f		1.06
Calculation factor	f1		1
Calculation factor	f2A		1
Calculation factor	f2B		1.02
Calculation factor	f2C		1.05
Calculation factor	fHC		1
Calculation factor	f0		9.7

Mass

Mass bearing

0.42

kg

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