SKF 7022 CE/HCP4A Angular contact ball bearings, super-precision

SKF 7022 CE/HCP4A 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		110	mm
D		170	mm
B		28	mm
d1		132.38	mm
d2		129.2	mm
D1		147.61	mm
r1,2	min.	2	mm
r3,4	min.	1	mm
a		32.9	mm

Abutment dimensions

da	min.	118.8	mm
db	min.	118.8	mm
Da	max.	161.2	mm
Db	max.	164.4	mm
ra	max.	2	mm
rb	max.	1	mm
dn		135.4	mm

Calculation data

Basic dynamic load rating	C		47.5	kN
Basic static load rating	C0		45	kN
Fatigue load limit	Pu		1.6	kN
Attainable speed for grease lubrication			12700	r/min
Attainable speed for oil-air lubrication			20000	r/min
Ball diameter	Dw		12.7	mm
Number of balls	z		30
Reference grease quantity	Gref		23	cm³
Preload and stiffness (back-to-back, face-to-face)
Preload class A	GA		250	N
Static axial stiffness, preload class A			104	N/µm
Preload class B	GB		760	N
Static axial stiffness, preload class B			165	N/µm
Preload class C	GC		1520	N
Static axial stiffness, preload class C			226	N/µm
Calculation factors
Calculation factor	f		1.1
Calculation factor	f1		1
Calculation factor	f2A		1
Calculation factor	f2B		1.03
Calculation factor	f2C		1.05
Calculation factor	fHC		1.01
Calculation factor	f0		9.6

Mass

Mass bearing

1.93

kg

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