Mechanical Power Transmission HandbookMcGraw-Hill book Company, Incorporated, 1936 - 488 σελίδες |
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Σελίδα 432
... heat - transfer medium . In a gear - reduction unit , regardless of gearing type , if the heat produced by the transmission of power is not radiated so rapidly as it is generated , the temperature rise will lower the viscosity of the ...
... heat - transfer medium . In a gear - reduction unit , regardless of gearing type , if the heat produced by the transmission of power is not radiated so rapidly as it is generated , the temperature rise will lower the viscosity of the ...
Σελίδα 433
... heat generated is about equal to that dissipated from the walls of the gear case , and therefore practically no increase of temperature is noted on continual operations . In the operation of any gear - reduction unit or open gearing ...
... heat generated is about equal to that dissipated from the walls of the gear case , and therefore practically no increase of temperature is noted on continual operations . In the operation of any gear - reduction unit or open gearing ...
Σελίδα 453
... HEAT UNITS Equivalent value in other units 0.234 lb. carbon oxidized with perfect efficiency 3.52 lb. water evaporated from and at 212 ° F . 22.77 lb. of water raised from 62 to 212 ° F . 2,655,200 ft.-lb. per hr . Unit 1 heat unit per ...
... HEAT UNITS Equivalent value in other units 0.234 lb. carbon oxidized with perfect efficiency 3.52 lb. water evaporated from and at 212 ° F . 22.77 lb. of water raised from 62 to 212 ° F . 2,655,200 ft.-lb. per hr . Unit 1 heat unit per ...
Περιεχόμενα
SECTION II | 55 |
SECTION III | 65 |
SECTION IV | 102 |
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accordance with information acid adjustment alignment allowable effective tension allowable load antifriction application arc of contact BALL BEARINGS belt tension bolt bore cast-iron cent center distance centrifugal coefficient of friction construction coupling Diam double driving duck efficiency employed equipment factor in accordance feet per minute flange flexible friction band friction clutch gear grease grease lubricated hanger head shafts heavy high-speed horizontal Horsepower capacities idler inch width installation jackshafting leather belting line shaft load rating lubrication Manufacturing maximum mechanical medium metal method mineral oil Mineral-retanned moisture motor operating pitch pounds Power capacities r.p.m. variable-speed shaft radial load ratio reduction unit Revolutions per minute ROLLER BEARINGS roller chain rotation rubber shaft speeds sheave shown by Fig sleeve Solid Split sprocket Spur-gear square inch standard starting torque steel TABLE teeth temperature thick torque transmission V-belt vertical weight worm