3/8in. with set screw.

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54-tooth takes #41 chain. 8 3/4in. O.D., 2in. center hole.

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1in. bore, 1/4in. keyway with pin. Includes 2 set screws.

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Bore: 3/4in. 11 teeth Chain #40/41 Engage RMP: 2200 For Engines to 8 HP

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Web brake lining. Uses pin #13663.

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4-hole mount drive sprockets with 60-teeth. U.S.A. #35 chain 2in. center hole Outside Diameter: 7 3/8in. 2in. x 2in. 4-hole mounting holes

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You get internally-expanding 6in. brake, chrome-plated drum, plus hub with 1/4in. keyway to fit on a 1in. live axle.

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4in. external band and drum Diameter of Drum: 4in. O.D. of Band: 4 13/16in. Drum and Band Width: 1in.

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40-tooth takes #35 chain, 5in. O.D., 2in. center hole #35 chain 5in. O.D. 2in. center hole

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Connecting Link for Drive Chain # 13653. Chain: # 420

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