Lubrication Fundamentals 2011 Part 6 ppsx

... industry, particularly where stick–slip characteristics can contrib- ute to reduced precision of machined parts. 1. Grease Lubrication On some machine tools, grease is used for the lubrication ... boundary type. The simplest type of all-loss lubrication is hand oiling (see Figure 8.19). Hand oiling results in flooded clearances immediately after lubrication. This condition may permit f...

Ngày tải lên: 11/08/2014, 10:23

... NY 100 16 tel: 212 -69 6-9000; fax: 212 -68 5-4540 Eastern Hemisphere Distribution Marcel Dekker AG Hutgasse 4, Postfach 812, CH-4001 Basel, Switzerland tel: 41 -61 - 261 -8482; fax: 41 -61 - 261 -88 96 World ... industry, especially for those participating in the quest to develop the new lubri- cant molecule for the future. D. M. Pirro A. A. Wessol ACKNOWLEDGMENTS Lubrication Fundamenta...

Ngày tải lên: 11/08/2014, 10:23

... Some applications require somewhat higher viscosity oils, ISO viscosity grade 46 (41.4–50 .6 cSt at 40ЊC) or ISO viscosity grade 68 (61 .2–74.8 cSt at 40ЊC). These grades of oil also provide excellent performance ... Rights Reserved. Figure 13.12 Bulb turbine installation. II. LUBRICATED PARTS The main parts of hydraulic turbines requiring lubrication are the turbine and generator bearin...

Ngày tải lên: 11/08/2014, 10:23

... 3.52 ISO VG 5 4 .6 4.14 5. 06 ISO VG 7 6. 8 6. 12 7.48 ISO VG 10 10 9.00 11.0 ISO VG 15 15 13.5 16. 5 ISO VG 22 22 19.8 24.2 ISO VG 32 32 28.8 35.2 ISO VG 46 46 41.4 50 .6 ISO VG 68 68 61 .2 74.8 ISO ... at מ20 5 .6 — — 25W 60 00 at מ 560 000 at מ15 9.3 — — 20 — — 5 .6 Ͻ 9.3 2 .6 30 — — 9.3 Ͻ 12.5 2.9 40 — — 12.5 Ͻ 16. 3 2.9 f 40 — — 12.5 Ͻ 16. 3 3.7 g 50 — — 16. 3 Ͻ 21.9 3.7 6...

Ngày tải lên: 11/08/2014, 10:23

... 10.5 kW 11 kW Rpm 2100 2100 1800 2200 2250 Oil capacity 6. 0 liters 6. 0 liters 6. 8 liters 3.2 liters 3.0 liters Test duration 252 h 252 h 360 h 50 h 50 h Oil temperature 107ЊC 107ЊC 130ЊC 110ЊC90ЊC Copyright ... complex complex complex Polyurea Organo clay 350–400 500ם 500ם 500ם 470 500ם 177–204 260 ם 260 ם 260 ם 243 260 ם 275 350 350 350 350 350 135 177 177 177 177 177 Good Good to Fair...

Ngày tải lên: 11/08/2014, 10:23

... Ͼ90 Synthetic ester Ͼ5000 55–84 Ͼ90 Polyglycol 80 to Ͼ5000 6 38 (Not tested) Sources: Shake Flask Test Measures Carbon Dioxide Evolution, EPA Method 560 /6- 82-003; CEC Method- CEC-L-33-T-82. Copyright 2001 ... important part of hydraulic systems. Hydraulic presses have been used for forging operations since about 1 860 , and an adjustable-speed hydraulic transmission was effectively used...

Ngày tải lên: 11/08/2014, 10:23

... time. Thin film lubrication includes mixed film and boundary lubrication. 3. Solid films are more or less permanently bonded onto the moving surfaces. A. Fluid Films Fluid film lubrication is ... ‘‘elasto’’ part of the term referring to the requirement that elastic deformation of the surfaces occur before the film can be formed. This type of lubrication is called elastohydrodynamic...

Ngày tải lên: 11/08/2014, 10:23

... 41.4–50 .6 46 1 S 2 61 .2–74.8 68 2 EP 2 S 390–110 100 3 EP 3 S 4 135– 165 150 4 EP 4 S 5 198–242 220 5 EP 5 S 6 288–352 320 6 EP 6 S 7, 7 Comp d 414–5 06 460 7 EP 7 S 8, 8 Comp d 61 2–748 68 0 8 EP ... temperature rise of 90ЊF (32.2ЊC) and an ambient temperature of 60 ЊF (15 .6 C) will produce an operating temperature of 150ЊF (65 .6 C), while the same temperature rise at an a...

Ngày tải lên: 11/08/2014, 10:23

... category, the GF-1, used the Sequence VI test engine (19 86 Buick V -6) , and to claim ‘‘Energy Conserving’’ in the API donut (Figure 10 .6) , a fuel economy improvement of 1.5% or greater was required. ... engines present a variety of lubrication challenges, certain factors affecting lubrication are more or less common to all reciprocat- ing engines. The primary objectives of lubricati...

Ngày tải lên: 11/08/2014, 10:23

... L-38; Sequence IV a SC MS (1 964 ) 1 964 Models CRC L-38 Sequence IIA a Sequence IIIA a Sequence IV a Sequence V a Caterpillar L-1 (1% sulfer fuel) a SD MS (1 968 ) 1 968 Models CRC L-381 Sequence ... contact with hot surfaces in the 400 60 0ЊF (204–3 16 C) range and mixes with hot gases that leak into bearing housings. Bulk oil temperatures in the tank may be in the 160 –250ЊF (71–121ЊC) ran...

Ngày tải lên: 11/08/2014, 10:23