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)
3НП-25.4	25.4	15.88	15.88	7.95	98	24.13	22	195	8.4
3ТП-25.4	25.4	15.88	15.88	7.95	107	24.13	24	195	9.6
3НП-31.75	31.75	19.05	19.05	9.55	118	30.18	26	300	12.6
3ТП-31.75	31.75	19.05	19.05	9.55	127	30.18	28	300	14.1
3НП-38.1	38.1	22.23	25.40	11.12	148	36.10	31	450	18.6
3ТП-38.1	38.1	22.23	25.40	11.12	158	36.10	32	450	20.1
3НП-44.45	44.45	25.40	25.40	12.72	159	42.24	34	627	24.0
3ТП-44.45	44.45	25.40	25.40	12.72	168	42.24	36	627	25.9
3НП-50.8	50.8	28.58	31.75	14.29	187	48.26	39	789	32.1
3ТП-50.8	50.8	28.58	31.75	14.29	197	48.26	42	789	34.2
3НП-57.15	57.15	35.70	35.72	17.45	210	54.00	42	1020	42.0
3ТП-57.15	57.15	35.70	35.72	17.45	222	54.00	44	1020	48.0
3НП-63.5	63.5	39.67	38.10	19.85	231	60.32	48	1290	52.2
3ТП-63.5	63.5	39.67	38.10	22.20	251	60.32	52	1560	60.0