To ensure belts maintain full performance capability, six years is the maximum recommended storage time.
To achieve full storage life, belts should be stored at temperatures below 85°F. For every 15°F increase above 85°F, the recommended storage time is reduced by half. It is not recommended to store belts at temperatures above 115°F.
For additional storage recommendations, refer to the Belt Drive Preventive Maintenance & Safety Manual: BeltPMManual.pdf