We continue to be impressed with the John Deere use of poly-V belt drives for accessories. You are looking here at a belt with 2400 hours of hard use, up to 10 horsepower of load with an average of probably six to seven horsepower. If it weren’t for the fact that we have lots of spares, we would continue to use these as they are showing very little wear.

Dual B belts of the highest quality, with precision engineering of pulleys, might go for 500 hours in this application.