Mechanical Power Transmission HandbookMcGraw-Hill book Company, Incorporated, 1936 - 488 σελίδες |
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Σελίδα 369
... torque . " Starting torque must be applied gradually to avoid possible destruction of the mechanism or machine involved . The underlying principle of torque must be understood and given thorough consideration in the design of modern ...
... torque . " Starting torque must be applied gradually to avoid possible destruction of the mechanism or machine involved . The underlying principle of torque must be understood and given thorough consideration in the design of modern ...
Σελίδα 370
... torque . the same power is expended on the motor whether the speed is zero or maximum . To obtain a given torque at start requires as much power as when running at full speed . The open - type slip - ring motor is approxi- mately 20 per ...
... torque . the same power is expended on the motor whether the speed is zero or maximum . To obtain a given torque at start requires as much power as when running at full speed . The open - type slip - ring motor is approxi- mately 20 per ...
Σελίδα 371
... torque . and direct - current motors ' being available , the alternating - current slip- ring type is usually employed when speed acceleration under severe torque is to be controlled electrically . During recent years , mechanical ...
... torque . and direct - current motors ' being available , the alternating - current slip- ring type is usually employed when speed acceleration under severe torque is to be controlled electrically . During recent years , mechanical ...
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