SKF 7026 CD/HCP4AH1 Angular contact ball bearings, super-precision

SKF 7026 CD/HCP4AH1 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		130	mm
D		200	mm
B		33	mm
d1		151.6	mm
d2		151.6	mm
D1		178.4	mm
K		0.5	mm
C1		8.9	mm
r1,2	min.	2	mm
r3,4	min.	1	mm
a		38.7	mm

Abutment dimensions

da	min.	139	mm
db	min.	139	mm
Da	max.	191	mm
Db	max.	195	mm
ra	max.	2	mm
rb	max.	1	mm
dn		156.4	mm

Calculation data

Basic dynamic load rating	C		148	kN
Basic static load rating	C0		156	kN
Fatigue load limit	Pu		5.2	kN
Attainable speed for grease lubrication			8000	r/min
Attainable speed for oil-air lubrication			13000	r/min
Ball diameter	Dw		22.225	mm
Number of balls	z		21
Reference grease quantity	Gref		42	cm³
Preload and stiffness (back-to-back, face-to-face)
Preload class A	GA		560	N
Static axial stiffness, preload class A			161	N/µm
Preload class B	GB		1120	N
Static axial stiffness, preload class B			219	N/µm
Preload class C	GC		2240	N
Static axial stiffness, preload class C			307	N/µm
Preload class D	GD		4480	N
Static axial stiffness, preload class D			444	N/µm
Calculation factors
Calculation factor	f		1.15
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		15.6

Mass

Mass bearing

2.67

kg

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