Excessively tight drive belts installed between a motor and a refrigeration compressor pulley may cause what condition?

Correct Answer: Option A — premature wear of both the pulley end motor shaft bearing and the pulley end compressor crankshaft main bearing due to overloading

Excessive belt tension creates extreme radial loads on the outermost rotating shafts. This continuous over-tensioning leads to premature friction and mechanical failure of both the motor shaft bearing and the compressor crankshaft main bearing nearest the pulleys.