BlackStar 8018R - Chain Coupling Classical V-Belt 12/C204 is a banded v-belt

12/C204 is a banded v-belt used on industrial drives - fans and blowers

so a 100-S5M-1100 from any major manufacturer shares the same dimensions and runs on the same pulleys/sheaves

"name": "What is the Megadyne 18/C420 used for

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Martin 3TB48 STL

BlackStar 8018R - Chain Coupling Classical V-Belt 12/C204 is a banded v-beltThe BlackStar 8018R is a chain coupling, manufactured from steel. Chain couplings connect two shafts using two sprockets and a length of double roller chain wrapped around them. They handle high torque industrial applications including pumps, conveyors, and compressors, accommodating angular and parallel shaft misalignment while transmitting power smoothly. Specifications Part Number 8018R Product Type Chain Coupling Coupling Size 8018 Material Steel