If you look closely inside an elevator installation of an elevator car, you would see a pulley belt. This belt serves as the counterweight suspension. It is a very critical part of the elevator because it serves as the suspension of the system. When in need of a belt replacement, you need to choose a belt alternator that has a transaction sheave and suspension device.
Check for the timing of the suspension belt replacement that you are getting. You can figure this out by looking at the belt diagram. The fastener of the suspension to the elevator car has the axles, which orient the direction of the pull. It allows the unit to individually swivel whether it be in a horizontal or vertical motion.
The belt alternator must have a suspension sheave that is mounted with bearings in order for the unit to accommodate the weight of the cart. The ideal dimension should be 150 percent of the width of the belt suspension. If you are looking for a belt replacement, keep this formula in mind so that you know what kind of belt tensioner you are looking for.
The next step is to check the vertical axes of the suspension sheave. Are these swivelable? If yes, then get a belt alternator that has wheels set in a straight line so that the counterweight of the elevator can carry through the distance between the wheels and the cross section. The formula you should remember is 40 degrees from the central position of the pulley belt. You should also look into the longitudinal axis and the counterweight of the car to be sure.
The belt replacement should also have the same timing for the fastener. If there is an extendable tie-in replacement, then the belt alternator must have the same thing. The pulley belt should also be constructed in the same way as that of the original so that it can achieve the same function as it did before. Read up on the specifications and features of the suspension belt replacement that you are getting and double check if these are achievable with what you are getting.
Check the external thread. The external thread of the belt diagram as found in the pulley belt is another crucial part in the belt tensioner. If possible, get the same model so that the suspension belt replacement will function as is. When this is engaged with the suspension sheave, it will work.
Finally, take note of the elevator installation, particularly the pulley belt. The flat-belt-type suspension as indicated in the belt diagram may or may not have V-ribbed belts which suspend the sheaves of the car. The counterweight functions, only if the plurality is accurate. If not, then there is a possibility of the car being suspended up in mid-air. This is not recommended, especially in elevator installations.
Check the axis of the belt replacement and see if this is compatible with the unit. See which direction it goes. If it only goes horizontal and you are trying to replace a pulley that goes vertical, then this is not worth getting. If you can get a multi-directional suspension belt replacement, then invest in this as long as it is compatible with the car.