Chain designation	Pitch (mm)	Roller diameter (mm)	Width between inner plates (mm)	Pin diameter (mm)	Pin length (mm)	Width of the inner plate (mm)	b max (mm)	Load to failure (kN)	Weight of 1 m (kg/m)
1НП-25.4	25.4	15.88	15.88	7.95	39	24.13	22	65	2.8
1ТП-25.4	25.4	15.88	15.88	7.95	42	24.13	24	65	3.2
1НП-31.75	31.75	19.05	19.05	9.55	46	30.18	26	100	4.2
1ТП-31.75	31.75	19.05	19.05	9.55	50	30.18	28	100	4.7
1НП-38.1	38.1	22.23	25.40	11.12	57	36.10	31	150	6.3
1ТП-38.1	38.1	22.23	25.40	11.12	61	36.10	32	150	6.8
1НП-44.45	44.45	25.40	25.40	12.72	61	42.24	34	209	8.1
1ТП-44.45	44.45	25.40	25.40	12.72	64	42.24	36	209	8.8
1НП-50.8	50.8	28.58	31.75	14.29	70	48.26	39	263	10.8
1ТП-50.8	50.8	28.58	31.75	14.29	73	48.26	42	263	11.5
1НП-57.15	57.15	35.70	35.72	17.45	78	54.00	42	340	14.1
1ТП-57.15	57.15	35.70	35.72	17.45	82	54.00	44	340	16.1
1НП-63.5	63.5	39.67	38.10	19.85	88	60.32	48	430	17.5
1ТП-63.5	63.5	39.67	38.10	22.20	95	60.32	52	520	20.0