140A48 sprockets with a stock bore comes with a 1-1/2" inside diameter plain hole and can be easily machine bored to custom sizes
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120BS14H 1" Finished Bore Sprocket Dimensions
6213 Ball Bearing Dimensions
6912-2RS Ball Bearing Dimensions
23V475SH Sheave two-groove 4.75" OD 2080 Sprockets 140A48 sprockets with a stockThis 23V475SH Sheave uses an SH bushing, is directly interchangeable with other manufacturers, is 4. 75" in diameter, and is manufactured in accordance with ARPM Standards for safe operation. With 3V series QD sheaves you can use standard 3V belts, 3VX belts, banded 3V belts, and banded 3VX belts. What separates this 23V475SH sheave from the others is that it is made using a high strength cast iron, is phosphate coated, painted, and balanced at the