Handbook of Lubrication Episode 2 Part 5 ppt
Handbook of Lubrication Episode 2 Part 5 pptx
... McGraw-Hill, New York, 1 957 .
29 . Raimondi, A. A., A theoretical study of the effect of offset loads on the performance of a 120 ° partial
journal bearing, ASLE Trans., 2, 147, 1 959 .
30. Raimondi, A. ... 51 1, 1 956 .
21 . Wilcock, D. F., The hydrodynamic pocket bearing, Trans. ASME, 77, 311, 1 955 .
22 . Raimondi, A. A., Adiabatic solution for the finite slider bearing, ASLE T...
Handbook of Lubrication Episode 2 Part 5 ppt
... 2( 5) , 25 , 1 955 .
476 CRC Handbook of Lubrication
463-476 4/6/06 7:17 PM Page 476
Copyright © 1983 CRC Press LLC
Hence
K = 9 .5 × 1.01 × 10
5
= 9.6 × 10
5
lb/in. stiffness
B = 11.3 × 1.01 × 10
5
/ (2 ... McGraw-Hill, New York, 1 957 .
29 . Raimondi, A. A., A theoretical study of the effect of offset loads on the performance of a 120 ° partial
journal bearing, ASLE Tr...
Handbook of Lubrication Episode 1 Part 5 pptx
... M,
a
11
q
1
+ a
12
q
2
+ … a
1L
q
L
= r
1
a
21
q
1
+ a
22
q
2
+ … a
2L
q
L
= r
2
. . . . . . .
a
L1
q
1
+ a
L2
q
2
+ … a
LL
q
L
= r
L
(17)
where
96 CRC Handbook of Lubrication
93_104 4/11/06 12: 09 PM ... pad bearings:
1 12 CRC Handbook of Lubrication
Bearing A Bearing B
mm (in.) mm (in.)
R
1
100 (3.94) 50 (1.97)
R
2
120 (4. 72) 70 (2. 76)
R
3
180 (7.09) 180 (7.0...
Handbook of Lubrication Episode 2 Part 3 ppt
... element
replacement when system operating. Normally below 50 µm.
3 95- 411 4/10/06 4 :54 PM Page 4 02
Copyright © 1983 CRC Press LLC
422 CRC Handbook of Lubrication
Table 3 (continued)
JOURNAL BEARING PERFORMANCE ... concentrated at O
js
, the steady running position of the journal. If some excitation F
420 CRC Handbook of Lubrication
FIGURE 5. Dynamical elements of rotor...
Handbook of Lubrication Episode 2 Part 3 ppt
... which
gives:
ΔΤ ϭ H/[
ρ
c(Q Ϫ Q
s
/2) ] (1)
For typical petroleum oils, ρc = 1 12 lb
F
/in.
2
F (139 N/cm
2
C) and for water ρc = 327
lb
F
/in.
2
F (406 N/cm
2
C).
Rather than assuming a uniform ... into a set of pie-shaped segments, circumferential
length of each sector at its mean radium (R
mean
) is commonly set approximately equal to the
426 CRC Handbook of Lubricatio...
Handbook of Lubrication Episode 2 Part 4 ppt
... CRC Handbook of Lubrication
Copyright © 1983 CRC Press LLC
428 CRC Handbook of Lubrication
β =
40° (0.70 rad)
γ
r
= 0 (no radial tilt)
R
2
= 5. 50 in.
γ
θ
= 5. 82 × 10
–4
rad (0.0333°)
R
1
= 2. 75 ... 0. 058 × 6 × 2 × 10
–6
× 314 (5. 50 – 2. 75)
4
/0.0 02)
2
= 3 1 25 lb
h
min
/h
c
= 0. 45; h
min
= 0. 45 × 0.0 02 = 0.00090 in.
Hh
c
/[
μ
ω
2
(R
2
– R
1
)
4
]...
Handbook of Lubrication Episode 2 Part 7 pptx
... LLC
25 m (50 to 1000 in.). Osculation clearances are normally in the range of 5 to 50 μm (0.00 02
to 0.0 02 in.).
Contact Stresses
The maximum principle stress, which is often used as a measure of ... ball bearings are 51
to 52 % for the inner race and 52 to 53 % for the outer race. For spherical roller bearings,
osculation is normally given as the ratio of the radius of cu...
Handbook of Lubrication Episode 2 Part 8 pptx
... hardened steel gears. They offer quiet operation, abrasion
5 42 CRC Handbook of Lubrication
53 9 -56 4 4/10/06 5: 02 PM Page 5 42
Copyright © 1983 CRC Press LLC
Volume II 53 3
Table 18
FAILURE MODES ... Table 13.
Volume II5 35
FIGURE 25 .SEM of ground surface after running. (Magnifications × 100 and 50 0.)
Copyright © 1983 CRC Press LLC
5 52 CRC Handbook of Lubric...
Handbook of Lubrication Episode 2 Part 10 ppt
... and 121 °C ( 25 0°F) oil,
448 .2 kPa ( 65 psi), wear life in excess of 600 hr with leakage of 3 .5 × 10
−4
m
3
/sec (0. 75
standard ft
3
/min), and radial unbalance force of 306 N/m (1. 75 lb/in. )of seal ... also apply to
circumferential seals.
12
FIGURE 12. Two-piece rod seal.
58 1- 622 4/10/06 6: 02 PM Page 59 4
Copyright © 1983 CRC Press LLC
58 8CRC Handbook of Lub...
Handbook of Lubrication Episode 2 Part 11 ppt
... 1970.
622 CRC Handbook of Lubrication
58 1- 622 4/10/06 6:03 PM Page 622
Copyright © 1983 CRC Press LLC
In many cases, material selection is complicated by wear resulting from a number of
mechanisms. ... 1979.
25 . SAE, Standard O-Ring Sizes, Aerospace Standards AS 56 8, Society of Automotive Engineers, Warrendale,
Pa.
26 . SAE, Gland Design, Aerospace Recommended Practices A...
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