SKF 71914 ACE/P4AL Angular Contact Ball Bearing

Details

Technical specification

DIMENSIONS

d		70 mm
D		100 mm
B		16 mm
d1		79.3 mm
d2		76.8 mm
D1		90.52 mm
b		2 mm
C1		8.6 mm
C2		2.8 mm
C3		2.8 mm
r1,2		min. 1 mm
r3,4		min. 0.3 mm
a		29.1 mm

ABUTMENT DIMENSIONS

da		min. 74.6 mm
db		min. 72 mm
Da		max. 95.4 mm
Db		max. 98 mm
ra		max. 1 mm
rb		max. 0.3 mm
dn		81.5 mm

CALCULATION DATA

Basic dynamic load rating	C	20.8 kN
Basic static load rating	C0	15.3 kN
Fatigue load limit	Pu	0.655 kN
Attainable speed for grease lubrication		16500 r/min
Attainable speed for oil-air lubrication		26000 r/min
Contact angle	?	25 °
Ball diameter	Dw	9.525 mm
Number of balls	z	22
Reference grease quantity	Gref	4.3 cm³

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

Preload class A	GA	190 N
Static axial stiffness, preload class A		131 N/µm
Preload class B	GB	570 N
Static axial stiffness, preload class B		197 N/µm
Preload class C	GC	1130 N
Static axial stiffness, preload class C		258 N/µm

CALCULATION FACTORS

Calculation factor	f	1.14
Calculation factor	f1	0.99
Calculation factor	f2A	1
Calculation factor	f2B	1.04
Calculation factor	f2C	1.07
Calculation factor	fHC	1
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		0.32 kg