Handbook of Lubrication Episode 2 Part 10 ppt

... considerations 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 Volu...

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... 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 Lubrication FIGURE 12. Spiral ... 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 tha...

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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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... psi) ρ = 7.77 × 10 –5 lb 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 ... 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 i...

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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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... LLC 25 m (50 to 100 0 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 ... 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...

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... 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 CRC Press LLC Volume II 533 Table ... ASME J. Lubr. Technol., 103 (2) , 29 5, 1981. 27 . Neale, M. J., Ed., Tribology Handbook, John Wiley & Sons, New York, 1973. 28 . Szeri, A. Z., Ed., Tribology —...

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... 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 600 CRC Handbook of Lubrication 581- 622 4 /10/ 06 ... (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...

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... 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. ... diametral clear- ances must be carefully followed. 610CRC Handbook of Lubrication FIGURE 22 . V-ring automatic gland seal. 581- 622 4 /10/ 06 6:03 PM Page 610 Copyright © 1...

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