Split-Cast Iron Pulleys

1,000 to 3,000 fpm

5,000 and 6,000 fpm

Belt riding from side to side on the pulley face and violent flapping of the slack side.

<p>Arc of contact, difference in tensions of belts, coefficient of frictions, and center distance.</p> Signup and view all the answers

<p>By altering the center distance, the load, or the belt velocity.</p> Signup and view all the answers

<p>The pulley with the lower value of friction contact.</p> Signup and view all the answers

<p>Can be placed between other pulleys on a shaft without removing either the pulleys or the shafts</p> Signup and view all the answers

<p>Claimed to transmit 35 to 50% more power for the same belt tension</p> Signup and view all the answers

<p>Shrinkage strains are greatly reduced or practically eliminated</p> Signup and view all the answers

<p>Where they are exposed to excessive moisture</p> Signup and view all the answers

<p>45 to 55% less weight for the same power-transmitting capacity</p> Signup and view all the answers

<p>2.35 to 2.70 percent less for steel pulleys</p> Signup and view all the answers

<p>6000 fpm</p> Signup and view all the answers

<p>10,000 fpm</p> Signup and view all the answers

<p>3 in. wider</p> Signup and view all the answers

<p>By making the center diameter 1/9 in. per foot of face width larger than the edge diameter.</p> Signup and view all the answers

<p>Centrifugal force</p> Signup and view all the answers

<p>It decreases until it is theoretically zero.</p> Signup and view all the answers

<p>Power = 2πTN</p> Signup and view all the answers

<p>Service conditions, center distance, pulley size, belt speed, and belt thickness</p> Signup and view all the answers

<p>The arc of contact on the smaller pulley decreases</p> Signup and view all the answers

<p>Never less than 155 degrees</p> Signup and view all the answers

<p>Ideally more than 165 degrees</p> Signup and view all the answers

<p>Consideration of service conditions, center distance, pulley size, belt speed, and belt thickness</p> Signup and view all the answers

<p>To prevent the belt from coming apart at the joint.</p> Signup and view all the answers

<p>It is reduced to 85 percent.</p> Signup and view all the answers

<p>Because the belt does not cling to the lower pulley as well in vertical drives.</p> Signup and view all the answers

<p>Avoid them and use the reversing type of drive with idler pulleys instead.</p> Signup and view all the answers

<p>To account for the reduced efficiency of inclined drives.</p> Signup and view all the answers

<p>It is reduced to 75 percent.</p> Signup and view all the answers