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MARATHON Duplex Maintenance-Free Roller Chain

MARATHON Duplex Maintenance-Free Roller Chain

Chain Pitch Inner width Inner link width Outer plate width Roller Ø Pin Ø Trans- verse pitch Plate height Projection over connecting link Width over pin Bearing area Minimum tensile strength Weight Connecting links
p b1 b2 b3 d1 d2 e g k l1 f FB q
min. max. min. max. max. max. max. max. min.
No. mm inch mm mm mm mm mm mm mm mm mm cm2 kN kg/m No.
MA06B-2 9,525* 3/8 5,72 8,53 8,66 6,35 3,28 10,24 8,2 3,3 23,8 0,56 17,4 0,78 11,12,15
MA08B-2 12,7 1/2 7,75 11,30 11,43 8,51 4,45 13,92 11,8 3,9 31,0 1,01 37,0 1,36 11,12,15
MA08A-2** 12,700  1/2 7,85 11,15 11,28 7,95 3,96 14,38 12,0 3,9 32,3 0,88 29,7 1,20 11,12,15
MA10B-2 15,875 5/8 9,65 13,28 13,41 10,16 5,08 16,59 14,7 4,1 36,2 1,34 54,0 1,82 11,12,15
MA10A-2** 15,875 5/8 9,40 13,80 13,93 10,16  5,08 18,11 15,0 4,1 39,9 1,40 62,0 1,78 11,12,15
MA12B-2 19,05 3/4 11,68 15,62 15,75 12,07 5,72 19,46 16,1 4,6 42,2 1,79 63,0 2,38 11,12,15
MA12A-2** 19,050 3/4 12,57 17,70 17,85 11,91 5,94 22,78 18,0 4,6 49,8 2,10 76,0 3,15 11,111,12,15
MA16B-2 25,4 1 17,02 25,40 25,60 15,88 8,28 31,88 21,0 5,4 68,0 4,21 140,0 5,30 11,111,12
MA16A-2** 25,400 1 15,75 22,50 22,70 15,88 7,92 29,29 24,1 5,4 62,7 3,56 135,0 4,90 11,111,12,15
MA20B-2 31,75 1 1/4 19,56 25,40 29,20 19,05 10,19 36,45 26,4 6,1 79,0 5,91 210,0 7,30 111, 12
MA20A-2** 31,750 1 1/4 18,90 27,40 27,60 19,05 9,53 35,76 30,1 6,1 77,0 5,22 205,0 7,60 111,12
MA24B-2 38,1 1 1/2 25,40 37,90 38,20 25,40 14,63 48,36 33,4 6,6 101,0 11,09 360,0 13,40 111, 12

* With straight side plates.
Standard sprockets can be used for these chains (**Chains to ANSI standard – sprockets supplied on request)

NB: Some of the items on this page may be non-stock. Please contact our Sales Department for confirmation.

Connecting links

No. 11 (E) Spring clip connecting link No. 111 (S) Connecting link with cottered pin
No. 12 (L) Single cranked link No. 15 (C) Double cranked link

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