SKF 7015 ACD/HCP4AL Angular contact ball bearings, super-precision

SKF 7015 ACD/HCP4AL 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		75	mm
D		115	mm
B		20	mm
d1		87.3	mm
d2		87.3	mm
D1		102.7	mm
b		1.8	mm
C1		10.9	mm
C2		3.9	mm
C3		3.4	mm
r1,2	min.	1.1	mm
r3,4	min.	0.6	mm
a		32.3	mm

Abutment dimensions

da	min.	81	mm
db	min.	81	mm
Da	max.	109	mm
Db	max.	111	mm
ra	max.	1	mm
rb	max.	0.6	mm
dn		90	mm

Calculation data

Basic dynamic load rating	C		49.4	kN
Basic static load rating	C0		46.5	kN
Fatigue load limit	Pu		1.96	kN
Attainable speed for grease lubrication			13000	r/min
Attainable speed for oil-air lubrication			20000	r/min
Ball diameter	Dw		12.7	mm
Number of balls	z		20
Reference grease quantity	Gref		8.4	cm³
Preload and stiffness (back-to-back, face-to-face)
Preload class A	GA		310	N
Static axial stiffness, preload class A			222	N/µm
Preload class B	GB		620	N
Static axial stiffness, preload class B			290	N/µm
Preload class C	GC		1240	N
Static axial stiffness, preload class C			386	N/µm
Preload class D	GD		2480	N
Static axial stiffness, preload class D			522	N/µm
Calculation factors
Calculation factor	f		1.14
Calculation factor	f1		0.99
Calculation factor	f2A		1
Calculation factor	f2B		1.02
Calculation factor	f2C		1.05
Calculation factor	f2D		1.08
Calculation factor	fHC		1.02
Calculation factor	e		0.68
Calculation factor (single, tandem)	Y2		0.87
Calculation factor (single, tandem)	Y0		0.38
Calculation factor (single, tandem)	X2		0.41
Calculation factor (back-to-back, face-to-face)	Y1		0.92
Calculation factor (back-to-back, face-to-face)	Y2		1.41
Calculation factor (back-to-back, face-to-face)	Y0		0.76
Calculation factor (back-to-back, face-to-face)	X2		0.67

Mass

Mass bearing

0.53

kg

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