Ewart Chain - American H class chains

Plain chain
Drawing 122

122-PLAIN PINTLE

CHAIN	PITCH	ALLOW.	U.T.S.	PIN	SIDEBAR	MAX.	BUSH
NO.		LOAD		DIA.	DEPTH	GEARING	DIA.
	P			D	A	G	B
H60	2.308	1,170	7,000	0.31	0.75	0.75	0.75
H74	2.609	1,580	10,000	0.38	1.00	1.00	0.88
H78	2.609	2,380	16,000	0.50	1.13	1.13	0.88
H82	3.075	3,080	20,000	0.56	1.25	1.25	1.22
H124	4.000	5,000	30,000	0.75	1.56	1.63	1.44

A1 attachments
Drawing 213
213 - H78 A1

CHAIN				BOLT
NO.				DIA
	C	E	F	H	T	W	X
H60	0.38	1.19	1.38	0.38	0.25	1.44	2.25
H78	0.56	1.19	1.41	0.38	0.19	2.19	2.81

F4 attachments
Drawing 214
214 - H78 F4

CHAIN
NO.
	C	H	H1	E	F	T	T1	V	W	X	Y
H60	1.25	0.38	0.31	3.94	4.69	0.28	0.22	0.88	1.63	2.13	3.06
H74	1.38	0.38	0.31	4.13	4.88	0.38	0.25	0.88	2.56	2.25	3.25
H78	1.44	0.38	0.38	4.5	5.38	0.38	0.25	0.88	1.94	2.31	3.75
H82	1.5	0.38	0.38	5	5.88	0.38	0.28	0.88	2.13	2.38	4.13
H124	1.66	0.38	0.38	5.25	6.13	0.5	0.28	0.88	2.56	2.78	4.38

H = Round hole, but dimensions are for bolt diameter
H1 = Square hole

H1 attachments
Drawing 215
215 - H78 H1

CHAIN
NO.
	C	F	X
H74	3.00	0.69	1.06
H78	3.63	0.50	1.13

H2 attachments
Drawing 110a
110A-H78 H2 (2)

CHAIN
NO.
	C	F	X
H60	2.44	2.16	0.94
H74	3.16	2.42	1.13
H78	3.50	2.42	1.13
H82	3.37	2.62	1.56

K1 attachments
Drawing 211
211 - H78 K1

CHAIN				BOLT
NO.				DIA
	C	E	F	H	W	X
H60	0.75	1.06	1.13	0.31	3.00	4.00
H74	0.69	1.25	1.13	0.31	2.88	3.88
H78	0.81	1.25	1.38	0.38	4.00	5.00

K2 attachments
Drawing 212
212 - H82 K2

CHAIN				BOLT
NO.				DIA
	C	E	F	H	W	X	Z
H82	0.88	1.31	2.19	0.38	4.25	5.50	0.75
H124	1.19	1.94	2.88	0.38	5.25	6.38	0.88

R1 attachments
Drawing 216
216 - H78 R1

CHAIN
NO.
	C	F	T	X
H74	1.50	1.13	0.25	1.13
H78	1.56	1.13	0.19	1.25

RR attachments
Drawing 217
217 - H78 RR

CHAIN
NO.
	C	F	T	X
H60	1.13	1.13	0.22	1.06
H74	1.50	1.13	0.25	1.13
H78	1.56	1.13	0.19	1.25
H82	1.88	1.19	0.38	1.50

The tabular dimensions and weights are approximate and are not binding.
Design improvements may result in variation from the published figures and verification is recommended.