A.N.S.I. No. 40 Chain - Q.D.® Bushed Sprockets - 1/2" Pitch (.312 Roll) - Single Strand - Steel

Catalog # 40JA17(H)

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Hub Type Bushing Size Pitch Diameter Bushing Bore Minimum Bushing Bore Maximum Length Through Bore Sprocket Weight
B JA 2.721 .500" 1.250" 1.000" .30lbs

Bores approaching maximum have shallow or no keyway - See standard key diameter (PDF)

Space in addition to length through bore is required for bolt heads and wrench on sprocket side in standard mount and on bushing side in reverse mount. - QD Hub Assembly Types (PDF)

(H) indicates sizes available with or without hardened teeth. All other sizes available with hardened teeth as an alteration.