v-belt tensioner design

Carlisle also offers several other tools to help tension belts properly. V-belt drives, they are based on drives which are designed using recommended 

V-Belt Design Manual www.bandousa.com Distributed by: BU-143/05-06 Drive Manual cover.qxd 4/26/2006 9:08 PM Page 1. FA x V T1 : Tight side tension (pounds) HP : Horsepower (HP) FA

results in excessive stress on belts, bearings, and shafts. However, there is still a wide range of tension which a belt will operate satisfactorily. The intent is to find this proper range for any V-Belt drive. proper belt tensioning why it matters and how it affects belt life Tension loss occurs on all manufacturer’s belts. The highest

Tensioning Method. Belt Tensioning. Tensioning forces. The tensioning forces in the table above are representative for a correctly designed drive.

To achieve optimum drive performance, correct drive belt or chain tension A properly designed and installed V-belt drive typically will offer.

T c = add-on tension allowance for centrifugal force, from T able 31 on page 7. Note: The value of T s is for an individual V -belt. If a banded V -belt is used, refer to ÒElongation Method.Ó Step 4. Calculate the recommended minimum and maximum deflection forces (P), in pounds: T s + Y (1.5 x T s) + Y P min = 16 P max = 16 Where: T s

V and Flat Belt Design and Engineering Data. Belt Tensions, Pretensions, Torques, Power and Configurations . Description Equation; Torque transmitted by a belt : Rated power of belt : Tension of flat belt : Tension of V-belt : Centrifugal loading : Belt length (open) Belt length (closed) Angle of contact Note: Use (+) for large pulley and X

V-belts allow for compact, lighter-weight drives and feature a high-strength tension member for rated power with minimum stretch. Their molded cog construction accommodates extended belt lengths. Motor bases are made of steel, which offers a base of rugged design while being compact and smooth in appearance. Bases are designed to provide

T c = add-on tension allowance for centrifugal force, from T able 31 on page 7. Note: The value of T s is for an individual V -belt. If a banded V -belt is used, refer to ÒElongation Method.Ó Step 4. Calculate the recommended minimum and maximum deflection forces (P), in pounds: T s + Y (1.5 x T s) + Y P min = 16 P max = 16 Where: T s

V-belt tensioning For the initial installation of optibelt RED POWER 3 V-belts, the same methods are used as for standard Optibelt V-belts. The tension values are to be calculated on the same basis or to be taken from the table on page 147. Once correctly tensioned optibelt RED POWER 3 V-belts need no re-tensioning. Application areas

3.1.1 Determining Design Power (P d) The optimal belt drive tension is dependent on many factors. The goal is to tension the belts just enough to prevent them from slipping, however it