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Rubber Drive Belts Electric Motors In Use Today


Rubber Drive Belts Inspection and Maintenance Procedure […]

Rubber Drive Belts Inspection and Maintenance Procedures. Well designed and properly installed V-belt drives are without question the most reliable, trouble free means.

There are more than a few belt-driven electric motors in use today: Approximately one-third of the electric motors in the industrial and commercial sectors use belt drives.And V-belts are powerful tools. Belt drives provide flexibility in the positioning of the motor relative to the load. Pulleys, or sheaves, of different diameters allow driven-equipment speeds to be increased or decreased relative to the motor speed. Belt power-transmission systems are relatively quiet and offer high efficiency. They require no lubrication and don’t need a lot of maintenance.

That’s why smart maintenance managers understand how V-belts and the sheaves they run on affect the performance of their electric motors. They ask the right questions, like: are the right V-belts installed; are they at optimal tightness; or have they worn prematurely? They understand when belts need to be replaced and how to do it properly.

They also know that improper V-belt tension is the most common operating problem for belt-driven electric motors, followed by alignment, and that worn sheaves greatly reduce system efficiency while adding to maintenance costs. V-belt drives can have a peak efficiency of 95 percent or higher when installed properly, but efficiency can deteriorate by as much as 5 percent due to slippage if the belt is not periodically retensioned.