SKF 7216 CD/P4A Angular Contact Ball Bearing

Details

Technical specification

MetricImperial

DIMENSIONS

d		80 mm
D		140 mm
B		26 mm
d1		99.5 mm
d2		99.5 mm
D1		120.5 mm
r1,2		min. 2 mm
r3,4		min. 1 mm
a		27.8 mm

ABUTMENT DIMENSIONS

da		min. 91 mm
db		min. 91 mm
Da		max. 129 mm
Db		max. 134.4 mm
ra		max. 2 mm
rb		max. 1 mm
dn		103.4 mm

CALCULATION DATA

Basic dynamic load rating	C	85.2 kN
Basic static load rating	C0	75 kN
Fatigue load limit	Pu	3.05 kN
Attainable speed for grease lubrication		9500 r/min
Attainable speed for oil-air lubrication		16000 r/min
Contact angle	?	15 °
Ball diameter	Dw	17.462 mm
Number of balls	z	17
Reference grease quantity	Gref	18.084 cm³

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

Preload class A	GA	320 N
Static axial stiffness, preload class A		96 N/µm
Preload class B	GB	640 N
Static axial stiffness, preload class B		130 N/µm
Preload class C	GC	1280 N
Static axial stiffness, preload class C		181 N/µm
Preload class D	GD	2560 N
Static axial stiffness, preload class D		260 N/µm

CALCULATION FACTORS

Calculation factor	f	1.09
Calculation factor	f1	1
Calculation factor	f2A	1
Calculation factor	f2B	1.01
Calculation factor	f2C	1.03
Calculation factor	f2D	1.05
Calculation factor	fHC	1
Calculation factor	f0	15.1

MASS

Mass bearing		1.46 kg