Lubrication Fundamentals 2011 Part 5 pps

... pump sides of vanes 5. 0–13.0 0.000197–0.00 051 1 Piston pump: piston to bore 5. 0–40.0 0.000197–0.00 157 5 Servovalves: flapper wall 18.0–63.0 0.000708–0.002363 Actuators 50 .0– 250 .0 0.001969–0.009843 housings ... inches Antifriction bearings 0 .5 0.000019 Vane pump: tip to vane 0 .5 1.0 0.000019–0.000039 Piston pump: valve plate to cylinder 0 .5 5. 0 0.000019–0.000197 Gear pump: gear...

Ngày tải lên: 11/08/2014, 10:23

... 38ЊC) a 100 (20 .53 ) 100 (20 .53 ) Pour point, ЊF(ЊC) 50 (מ 45. 5) 0 (מ18) Viscosity index 15 100 Flash point, ЊF(ЊC) 340 (171) 390 (199) Gravity, API 24.4 32.7 Color (ASTM) 1 .5 0 .5 a SUS, Saybolt ... approximately 120ЊF (50 ЊC) to 180ЊF (80ЊC). To maintain the propane as a liquid at the temperatures used, the column must be operated under pressure (about 50 0 psig, or 35 atm). Propan...

Ngày tải lên: 11/08/2014, 10:23

... stock Trout LC 50 (ppm) Shake flask CEC test Mineral oil 389 to 50 00 42–48 (Not tested) Vegetable oil 633 to 50 00 72–80 Ͼ90 Synthetic ester 50 00 55 –84 Ͼ90 Polyglycol 80 to 50 00 6–38 (Not ... 200 Viscosity, cSt at 40ЊC (ASTM D 4 45- 3) 35. 4 35. 1 35. 6 Total acid number (ASTM D 664) 0.92 0.97 1.14 Water addition 1% 1% Cumulative wear (vanes and ring) — 16 mg 25 mg Test conditions Dur...

Ngày tải lên: 11/08/2014, 10:23

... 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 ... hardness, suitable ductility, and good resistance to fa- tigue A still thicker (usually 0. 05 0.1 25 in., 1. 25 3.2 mm) back or shell of bronze or steel Some of the more common combinations use...

Ngày tải lên: 11/08/2014, 10:23

... order of 50 ,000 hp or more. While this wide range of engine sizes and the types of application of the engines present a variety of lubrication challenges, certain factors affecting lubrication ... pump takes 5 15% of the oil in circulation from a point above the maximum level of separated water in the reservoir and pumps it through a suitable filter back to the clean oil compartment....

Ngày tải lên: 11/08/2014, 10:23

... ranging from about 65 to 1 650 ft (20 50 0 m), and even higher head units are under development. Outputs in the 200–400 MW per unit range are common, and units rated at up to 750 MW are in service. Small ... Rights Reserved. Figure 13.12 Bulb turbine installation. II. LUBRICATED PARTS The main parts of hydraulic turbines requiring lubrication are the turbine and generator bearings, the gui...

Ngày tải lên: 11/08/2014, 10:23

... 0.12 6–8 65 1 25 500– 750 1 0.18 8–10 1 25 2 25 750 –1100 1.33 0.24 10–12 2 25 350 1100– 150 0 1–2 0.34 12– 15 350 –600 150 0–2000 2–3 0.48 15 18 600–1000 2000–2600 3–4 0.62 18–24 1000–1800 2600–3600 4 5 0.86 24–30 ... 1000–1800 2600–3600 4 5 0.86 24–30 1800–3000 3600–4800 5 6 1. 15 30–36 3000– 450 0 4800–6000 6–8 1.44 36–42 450 0– 650 0 6000– 750 0 8–10 1.80 42–48 650 0–9000 750 0–90...

Ngày tải lên: 11/08/2014, 10:23

... — 15W 350 0 at מ 25 60 000 at מ 25 5.6 — — 20W 450 0 at מ20 60 000 at מ20 5. 6 — — 25W 6000 at מ 56 0000 at מ 15 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 ... 90.0 110 ISO VG 150 150 1 35 1 65 ISO VG 220 220 198 242 ISO VG 320 320 288 352 ISO VG 460 460 414 50 6 ISO VG 680 680 612 748 ISO VG 1000 1000 900 1100 ISO VG 150 0 150 0 1...

Ngày tải lên: 11/08/2014, 10:23

... liters Oil capacity 5. 3 liters 3.67 liters 5. 7 liters 45. 4 liters Test duration 64 h 288 h 50 h 250 h Rpm 3000 I 250 0 800– 150 0 1800 II 250 0 III 750 Load 50 .6 kW 25/ 25/ 0. 75 kW 2.18– 15. 39 kW 258 kW Oil temperature ... Lithium Lithium complex complex complex Polyurea Organo clay 350 –400 50 0ם 50 0ם 50 0ם 470 50 0ם 177–204 260ם 260ם 260ם 243 260ם 2 75 350 350 350 350 350...

Ngày tải lên: 11/08/2014, 10:23

... 10 to 35 35 to 55 of final reduction stage a,b (מ40 to ם14) (14 to 50 ) (50 to 95) ( 95 to 131) Less than 5 m/s (1000 ft/min) h 3S 4 6 8 5 15 m/s (1000–3000 ft/min) 3S 3 5 7 15 25 m/s (3000 50 00 ... to מ10 מ10 to ם10 10 מ 35 35 מ 55 of final reduction stage (מ40 to ם14) (14 to 50 ) (50 to 95) ( 95 to 131) Ͻ2 .5 m/s ( 450 ft/min) 5S 7 Comp 8 Comp 8S Ͼ2 .5 m/s ( 450 ft/mi...

Ngày tải lên: 11/08/2014, 10:23