SKF 71915 ACB/HCP4AL Angular Contact Ball Bearing

Details

Technical specification

DIMENSIONS

d		75 mm
D		105 mm
B		16 mm
d1		85.94 mm
d2		84.55 mm
D2		97.5 mm
b		1.5 mm
C1		8.6 mm
C2		3.8 mm
C3		2.7 mm
r1,2		min. 1 mm
r3,4		min. 0.6 mm
a		32.3 mm

ABUTMENT DIMENSIONS

da		min. 79.6 mm
db		min. 79.6 mm
Da		max. 100 mm
Db		max. 101.8 mm
ra		max. 1 mm
rb		max. 0.6 mm
dn		86.9 mm

CALCULATION DATA

Basic dynamic load rating	C	13.3 kN
Basic static load rating	C0	12.5 kN
Fatigue load limit	Pu	0.39 kN
Attainable speed for grease lubrication		18000 r/min
Attainable speed for oil-air lubrication		28000 r/min
Contact angle	?	25 °
Ball diameter	Dw	6.35 mm
Number of balls	z	34
Reference grease quantity	Gref	4.76 cm³

PRELOAD AND STIFFNESS (BACK-TO-BACK, FACE-TO-FACE)

Preload class A	GA	80 N
Static axial stiffness, preload class A		135 N/µm
Preload class B	GB	160 N
Static axial stiffness, preload class B		173 N/µm
Preload class C	GC	480 N
Static axial stiffness, preload class C		262 N/µm

CALCULATION FACTORS

Calculation factor	f	1.11
Calculation factor	f1	0.99
Calculation factor	f2A	1
Calculation factor	f2B	1.02
Calculation factor	f2C	1.08
Calculation factor	fHC	1.01
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		0.34 kg