Flender/Flender Gear Units/Helical gear Reduction Boxes H4
ifficult to predict the back-driving capability of 7 Series reducer. Worm gear reducers are not intended to be used as

speed increasers. Consult factory for back-driving applications. -1-BG 5/1 FLENDER GRAFFENSTADEN bostongear speed reducersQHorsepower and Torque POWER is the rate

of doing work. WORK is the exerting of FORCE through DISTANCE. ONE FOOT POUND is unit of WORK. It is

the WORK done in exerting FORCE OF ONE POUND through DISTANCE of ONE FOOT. THE AMOUNT OF WORK done (Foot

Pounds) is the FORCE (Pounds) exerted multiplied by the DISTANCE (Feet) through which the FORCE acts. THE AMOUNT OF POWER used (Foot Pounds per Minute) is the WORK (Foot Pounds) done divided by the TIME (Minutes) required. WORK (Ft. Lbs.) POWER (Foot Pounds per Minute) = TIME (Minutes) POWER is usually expressed in terms of HORSE POWER. HORSEPOWER is POWER (Foot Pounds per Minute) divided by 3,0. HORSEPOWER (HP) = POWER (Ft. Lbs. per Minute) 3,0 = WORK (Ft. Pounds) 3,0 TIME (Min.) = FORCE (Lbs.) DISTANCE (Feet) 3,0 TIME (Min.) Illustration of horsepower FORCE( ) = 3,0 lbs. 3,0 lbs. DISTANCE = 1 FT . TIME = 1MIN.FORCE( ) 1 lbs. 1 lbs. DISTANCE = 3 FT . TIME = 1MIN. WG.0 HP = 3,0 1 = 1 HP HP = 1 3 = 1 HP 3,0 1 3,0 1 TORQUE () is the product of FORCE () in pounds, times RADIUS () in inches from the center of shaft (Lever Arm) and is expressed in Inch Pounds. W3 # = 1" W1 # = 2" WG.0 = WR = WR = 3 1 = 3 In. Lbs. = 1 2 = 3 In. Lbs.If the shaft is revolved, the FORCE () is moved through distance, and WORK is done. WORK (Ft. Lbs.) = 2R No. of Rev. of shaft 1 When WORK is done in specified TIME, POWER is used. POWER (Ft. Pounds per Minute) = 2R RPM 1 Since ( HORSEPOWER = 3,0 Ft. Pounds per Minute Horsepower (HP) = 2R RPM = RPM 1 3,0 6,0 but TORQUE (Inch Pounds) = FORCE () RADIUS () Therefore HORSEPOWER (HP) = TORQUE () RPM