25T5/860US Timing Belt 2.7/16" 12/CK247 is a banded v-belt

12/CK247 is a banded v-belt used on industrial drives - fans and blowers

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so a 1080H200 from any major manufacturer shares the same dimensions and runs on the same pulleys/sheaves

The 2525-5M-15 is a timing belt from D&D Global's Dura-Sync Torque - 5M Series line

25T5/860US Timing Belt 2.7/16" 12/CK247 is a banded v-belt25T5 860US Timing Belt The 25T5 860US is a timing belt from D&D Global's Dura True Torque Urethane Steel T5 Series line. It transmits power positively with no slip, holding timing between shafts on synchronous drives. Specification Value Part Number 25T5 860US Belt Type Timing Belt Tooth Profile T5US T AT metric Tooth Pitch 5 mm Number of Teeth 172 Belt Width 25 mm Pitch Length 860 mm (Pitch Length) Construction Polyurethane, Steel Cable cord, fabric