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DIN 745 Chain Brackets

DIN 745 chain shackles used for connecting chain ends according to DIN 764 and DIN 766. Chain shackles should be used with distance collars. In most cases, the lack of plates is the reason for broken shackles. Chain shackles made from steel C45 and CrNi-alloyed steel, shackles C45 are heat-treated and case hardened up to a tensile strength of 1100N/mm², inner contact surfaces are inductive hardened to a surface hardness of min. 55 HRC. Shackles according to G80 quality made from CrNi-alloyed steel are additionally surface hardened of min. 62 HRC.

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Technical information

t	a	b	d1	d2	d4	M	h	l	Weight	Min Breaking Load		Distance collar			Weight	Corresponding chain ends
t	a	b	d1	d2	d4	M	h	l	Weight	C45	G 80	l1	b	s	Weight	acc. to DIN 764 & 766 for plain chain wheels	acc. to DIN 764 for toothed sprockets
[mm]									[kg]	[kN]		[mm]			[kg]	Diameter d
45	20	73	11,5	14	12,5	M10	40	25	0,15	76	80	75	30	5	0,08	10	13
56	25	92	15	18	16,5	M12	50	32	0,32	112	125	95	40	6	0,17	13	16
63	30	105	18	21	20	M16	60	40	0,55	142	150	110	40	6	0,18	16	18
70	34	116	20	23	23	M20	68	45	0,86	176	200	120	50	6	0,25	18	20
80	37	132	23	26	25	M20	74	45	1,08	230	250	130	50	6	0,27	20	23
91	43	149	26	29	29	M24	86	55	1,65	300	315	150	60	8	0,50	23	26
105	50	173	30	34	31	M24	100	55	2,20	395	425	165	60	8	0,56	26	30
126	59	206	36	40	37	M30	118	70	3,95	570	600	200	70	10	0,97	30	34
147	68	239	42	46	42	M30	136	70	5,50	775	850	230	80	12	1,15	36	42