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)
4НП-25.4	25.4	15.88	15.88	7.95	127	24.13	22	260	11.2
4ТП-25.4	25.4	15.88	15.88	7.95	140	24.13	24	260	12.8
4НП-31.75	31.75	19.05	19.05	9.55	153	30.18	26	400	16.8
4ТП-31.75	31.75	19.05	19.05	9.55	166	30.18	28	400	18.8
4НП-38.1	38.1	22.23	25.40	11.12	194	36.10	31	600	24.8
4ТП-38.1	38.1	22.23	25.40	11.12	207	36.10	32	600	26.8
4НП-44.45	44.45	25.40	25.40	12.72	208	42.24	34	836	32.0
4ТП-44.45	44.45	25.40	25.40	12.72	220	42.24	36	836	34.5
4НП-50.8	50.8	28.58	31.75	14.29	246	48.26	39	1052	42.8
4ТП-50.8	50.8	28.58	31.75	14.29	259	48.26	42	1052	45.6
4НП-57.15	57.15	35.70	35.72	17.45	276	54.00	42	1360	56.0
4ТП-57.15	57.15	35.70	35.72	17.45	289	54.00	44	1360	64.0
4НП-63.5	63.5	39.67	38.10	19.85	304	60.32	48	1720	69.6
4ТП-63.5	63.5	39.67	38.10	22.20	330	60.32	52	1720	80.0