Metric Triple Strand Roller Chain 

Chain Size	Pitch P mm	Roller diameter d1 max mm	Width between inner plates b1 min mm	Pin diameter d2 max mm	Pin length L max / Lc max mm		Inner plate depth h2 max mm	Plate thickness t/T max mm	Pt	Average tensile strength Q0 kN
05B-3	8.000	5.00	3.00	2.31	19.5	20.2	7.10	0.80	5.64	13.80
06B-3	9.525	6.35	5.72	3.28	33.5	34.6	8.20	1.30	10.24	30.10
08B-3	12.700	8.51	7.75	4.45	45.1	46.1	11.80	1.60	13.82	57.80
10B-3	15.875	10.16	9.65	5.08	52.1	54.1	14.70	1.70	16.56	84.50
12B-3	19.050	12.07	11.68	5.72	62.7	64.1	16.00	1.85	19.48	101.80
16B-3	25.400	15.88	17.02	8.28	92.8	97.2	21.00	4.15/3.1	45.31	227.30
20B-3	31.750	19.05	19.56	10.19	114.2	117.9	26.40	4.50/3.5	60.48	334.90
24B-3	38.100	25.40	25.40	14.63	146.4	151.1	33.20	6.00/4.8	92.36	493.00
28B-3	44.450	27.94	30.99	15.90	184.2	188.7	36.70	7.50/6.0	128.46	609.50
32B-3	50.800	29.21	30.99	17.81	188.2	192.3	42.00	7.00/5.0	128.46	770.50
40B-3	63.500	39.37	38.10	22.89	226.8	233.8	52.96	8.50/8.0	211.60	1092.50
48B-3	76.200	48.26	45.72	29.24	281.4	289.6	63.80	12.00/9.1	292.60	1710.00
56B-3	88.900	53.98	53.34	34.32	327.8	336.2	77.80	13.50/12.0	350.12	2464.00
64B-3	101.600	63.50	60.96	39.40	369.8	378.2	90.17	15.00/13.0	500.13	11989.20
72B-3	114.300	72.39	68.58	44.48	428.0	429.3	103.60	17.00/15.0	572.10	4125.00