They are manufactured to perform at identical or higher levels than all major US Manufacturerâs belts of the same type.
37 x 52in PL, 4 Rib D&D DURA-PRIME RIB PRO SERPENTINE belts meet or exceed USA RMA published ratings levels. All DURA-PRIME RIB PRO SERPENTINE polybelts are manufactured using the latest in belt technology. DURA-PRIME RIB PRO SERPENTINE ribbed belts are designed for high speed and high drive ratio applications.52" Outside Length, 3/8" Top Width, 4 Ribs They are made of abrasion and heat resistant material, and are proven through thousands of hours of customer use to be durable and dependable.