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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