|
Rob, You are right on how you measure the top section of the belt. You should place the belt into the sheave (pulley) to see how it fits. The back of the belt should sit flush with the top of the sheave. If it doesn't, then the first question is: was this the original belt???? Also if the belt does not sit flush, then you should see uneven wear on the side walls of the belt. Once you have it figured out, say for example it is 1/2", and 130" outside circumference. You need to determine if you need a "power rated" or a standard industrial belt. Each has its strength. The power rated is used for the most part on shafts that are in diffent planes. I.E. On a lawn mower deck you have the engine pulley up top (on a vertical shaft), then two pulleys (on horizontal shafts) back a ways that divert the belt down to the mower deck. Then there are numerous pulleys on the mower deck that are on vertical shafts). If you use a regular industrial belt (I.E. A128, or B127) your belt may not last more than a few hours. Industrial belts are not made to flex all the different ways that "Power rated" belts do. An industial belt will come apart between the cords and the rubber. The advantage of the industrial belt is cost, perhaps 50% of the price of the power rated. If in doubt, buy the power rated (aka: lawn and garden) belt. There is also a good application website available to everyone. Search under Gates Rubber, or Gates Belts, and within that site you can search for your....lawn mower, snowblower, car, truck, snowmobile..... You can then call you local bearing/ powertransmission distributor, and they can get you the belt. Fessman
|
