SKF S7024 CD/HCP4A Angular contact ball bearings, super-precision

SKF S7024 CD/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		120	mm
D		180	mm
B		28	mm
d1		138.5	mm
d2		138.5	mm
D2		165.05	mm
r1,2	min.	2	mm
r3,4	min.	1	mm
a		34.2	mm

Abutment dimensions

da	min.	129	mm
da	max.	137.9	mm
db	min.	129	mm
db	max.	137.9	mm
Da	max.	171	mm
Db	max.	175	mm
ra	max.	2	mm
rb	max.	1	mm

Calculation data

Basic dynamic load rating	C		114	kN
Basic static load rating	C0		122	kN
Fatigue load limit	Pu		4.25	kN
Attainable speed for grease lubrication			8500	r/min
Ball diameter	Dw		19.05	mm
Number of balls	z		22
Preload and stiffness (back-to-back, face-to-face)
Preload class A	GA		430	N
Static axial stiffness, preload class A			146	N/µm
Preload class B	GB		860	N
Static axial stiffness, preload class B			198	N/µm
Preload class C	GC		1720	N
Static axial stiffness, preload class C			278	N/µm
Preload class D	GD		3440	N
Static axial stiffness, preload class D			404	N/µm
Calculation factors
Calculation factor	f		1.17
Calculation factor	f1		1
Calculation factor	f2A		1
Calculation factor	f2B		1.02
Calculation factor	f2C		1.05
Calculation factor	f2D		1.09
Calculation factor	fHC		1.02
Calculation factor	f0		15.7

Mass

Mass bearing

1.78

kg

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