SKF S71913 CB/P4A Angular contact ball bearings, super-precision

SKF S71913 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		65	mm
D		90	mm
B		13	mm
d1		73.94	mm
d2		72.72	mm
D2		83.46	mm
r1,2	min.	1	mm
r3,4	min.	0.3	mm
a		20.1	mm

Abutment dimensions

da	min.	69.6	mm
da	max.	73.3	mm
db	min.	69.6	mm
db	max.	72.1	mm
Da	max.	85.4	mm
Db	max.	88	mm
ra	max.	1	mm
rb	max.	0.3	mm

Calculation data

Basic dynamic load rating	C		14.3	kN
Basic static load rating	C0		15.3	kN
Fatigue load limit	Pu		0.4	kN
Attainable speed for grease lubrication			20000	r/min
Ball diameter	Dw		5.556	mm
Number of balls	z		32
Preload and stiffness (back-to-back, face-to-face)
Preload class A	GA		35	N
Static axial stiffness, preload class A			38	N/µm
Preload class B	GB		70	N
Static axial stiffness, preload class B			51	N/µm
Preload class C	GC		210	N
Static axial stiffness, preload class C			81	N/µm
Calculation factors
Calculation factor	f		1.13
Calculation factor	f1		1
Calculation factor	f2A		1
Calculation factor	f2B		1.02
Calculation factor	f2C		1.07
Calculation factor	fHC		1
Calculation factor	f0		9.9

Mass

Mass bearing

0.22

kg

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