Chain designation	Pitch (mm)	Roller diameter (mm)	Width between inner plates (mm)	Pin diameter (mm)	Pin length (mm)	Width of the inner plate (mm)	Load to failure (kN)	Weight of 1 m (kg/m)
3ПР-12.7-45.4	12.700	8.51	7.75	4.45	50.0	11.80	45.4	2.00
3ПР-15.875-68.1	15.875	10.16	10.16	5.08	57.0	14.80	68.1	2.80
3ПР-19.05-96	19.050	11.91	11.91	5.94	76.2	18.08	96.0	4.30
3ПР-25.4-171	25.400	15.88	15.88	7.92	98.0	24.20	171.0	7.50
3ПР-31.75-265.5	31.750	19.05	19.05	9.53	120.0	30.20	265.5	11.00
3ПР-38.1-381	38.100	22.23	25.40	11.10	150.0	36.20	381.0	16.50
3ПР-44.45-517.2	44.450	25.4	25.40	12.70	160.0	42.40	517.2	21.70
3ПР-50.8-680.4	50.800	28.58	31.75	14.27	190.0	48.30	680.4	28.30