Handbook of Lubrication Episode 2 Part 11 ppt

... 13(4), 311, 1970. 622 CRC Handbook of Lubrication 581- 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. ... Society of Automotive Engineers, Warrendale, Pa. 26 . SAE, Gland Design, Aerospace Recommended Practices ARP 123 1; ARP 123 2; ARP 123 3; and ARP 123 4, Society of A...

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... numbersMinMax 21 .9 82. 42 32. 883. 52 54.145.06 76. 127 .48 109.0 011. 0 1513.516.5 22 19. 824 .2 322 8.835 .2 4641.450.6 6861 .27 4.8 10090. 0110 150135165 22 019 824 2 320 28 825 2 460414506 6806 127 48 1,0009001,100 1,5001,3501,650 original ... (orig.) ~28 0 NA ~22 0 NA DEHS (HMW) 27 7 7.19 21 9 13.69 MLO 7558 (HMW) 27 8 11. 65 22 5 17. 62 MLO 721 9 (HMW) 27 5 48.47 22 3...

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... 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...

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... 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...

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... sec 2 /in. 4 ␯ = µ/ ρ = 2. 32 × 10 2 in. 2 /sec Calculating the Reynolds and bearing characteristic numbers: Re = R ω C/␯ = 10 × 25 1 × 0. 020 /2. 32 × 10 2 = 21 60 (turbulent) S = µN (R/C) 2 /P ... 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. 8...

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... McGraw-Hill, New York, 1957. 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, 1959. 30. Raimondi, ... tangential slope of pad, rad ω = 2 N = Rotation speed, rad/séc ξ = 2( R/C) 3 μNL, lb/in. ( ) i = Quantity evaluated at inlet 460CRC Handbook of Lubrication FIGURE 52. Effect...

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... McGraw-Hill, New York, 1957. 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, 1959. 30. Raimondi, ... tangential slope of pad, rad ω = 2 N = Rotation speed, rad/séc ξ = 2( R/C) 3 μNL, lb/in. ( ) i = Quantity evaluated at inlet 460CRC Handbook of Lubrication FIGURE 52. Effect...

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... Λ, the ratio of EHD film thickness to composite surface roughness, has come into use to define the state of lubrication. Composite surface roughness, in turn, 524 CRC Handbook of Lubrication Copyright ... determining overall performance. 19 -22 Partial film — In this transition regime the load is supported partially by an EHL film and partially by intimate contact of the rollin...

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... 13, 24 1, 1970. 25 . Hamrock, B. J. and Dowson, D., Isothermal elastohydrodynamic lubrication of point contacts. III. Fully flooded results, ASME Trans. J. Lubr. Techno., 99 (2) , 26 4, 1977. 26 . ... most effective when meshing with hardened steel gears. They offer quiet operation, abrasion 5 42 CRC Handbook of Lubrication 539-564 4/10/06 5: 02 PM Page 5 42 Copyright © 1983...

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... in Figures 10 and 11 also apply to circumferential seals. 12 FIGURE 12. Two-piece rod seal. 581- 622 4/10/06 6: 02 PM Page 594 Copyright © 1983 CRC Press LLC 588CRC Handbook of Lubrication FIGURE ... (Figures 2d, 2e, and 2f) avoid rotation of the spring assembly and are therefore often preferred for higher speeds. Better tolerances and finishes are required Volume II 581 581- 62...

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