Vortex X325-40-180TC-L Worm Gear Reducer - 40:1 Ratio, 180TC NEMA Frame ID 50-100mm so a 250-S8M-1256 from any

so a 250-S8M-1256 from any major manufacturer shares the same dimensions and runs on the same pulleys/sheaves

"name":"Gates T5-420-16 Synchro-Power Polyurethane Belts"

2/C345 is a banded v-belt used on industrial drives - fans and blowers

so a 2/D195 from any major manufacturer shares the same cross-section and length and runs on the same sheaves

"name":"D&D Global 1600-5M-450 Timing Belt - 5M Section

Vortex X325-40-180TC-L Worm Gear Reducer - 40:1 Ratio, 180TC NEMA Frame ID 50-100mm so a 250-S8M-1256 from anyThe Vortex X325 40 180TC L is a worm gear speed reducer with a 40: 1 nominal ratio (exact ratio 40. 0: 2: 1), 3. 25 inch center distance, and NEMA 180TC input flange. Output is a solid 1. 375 inch shaft with a 5 16x5 32 keyway, oriented for left hand output. Specifications Specification Value Part Number Vortex X325 40 180TC L Series Vortex X Series Nominal Ratio 40: 1 Exact Ratio 40. 0: 2 Center Distance 3. 25" NEMA Input Frame 180TC Output