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O'Reilly Platform
book
Analysis and Design of Machine Elements
by
Wei Jiang
April 2019
Intermediate to advanced content level
Intermediate to advanced
528 pages
14h 4m
English
Wiley
Content preview from
Analysis and Design of Machine Elements
11
Rolling Contact Bearings
Nomenclature
A
axial load, N
C
basic dynamic load rating, N
C
0
basic static load rating, N
e
factor
F
a
external axial load, or thrust force, N
F
r
external radial load, or radial force, N
f
p
load factor
f
t
temperature factor
H
total operating hours under variable loads, h
L
h
bearing life in hours, h
L
10
rated life at reliability of 90%, rev
L
10
h
rated life in hours at reliability of 90%, h
L
n
bearing life at diffident reliability, h
[
L
h
]
allowable life in hours, h
N
i
reaction force, N
n
rotational speed, rpm
P
equivalent dynamic load, N
P
0
equivalent static load, N
P
i
resolved radial load component, N
R
radial load on bearing, N
r
1
radius of bore, mm
r
2
radius of rolling elements, mm
r
3
radius of outer ring, mm
r
4
radius of retainer, mm
S
induced thrust load, N
S′
appended thrust load, N
S
0
static safety factor
S
i
resolved axial load component, N
t
temperature, °C
X
dynamic radial load factor
X
0
static radial load factor
Y
dynamic axial load factor
Y
0
static axial load factor
α
contact angle, deg.
α
1
life‐adjustment factor for reliability
ε
load‐life exponent
θ
angular deviation, deg.
ω
1
angular velocity of inner ring, rad s
−1
ω
2
angular velocity ...
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Publisher Resources
ISBN: 9781119276074
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