链号	节距 Pitch p mm	梯级距 t	内链节内宽 Inner width of inner link b1(min) mm	滚子直径 Roller diameter d1(max) mm	销轴直径 Pin diameter d2(max) mm	销轴长度 Pin length b2 mm	链板高度 Plate height h1 mm	梯级链板高度 Step Plate height h2 mm	梯级套筒 Step Bushing		拉伸载荷 Tensile load min KN	重量
									孔径 Hole diameter d3	长度 Length b3 mm
T67A	67.73	406.4+0.4  0	25.4min	φ28	φ14.29	51	32/38	46	φ21	35	158	0.35
T67B	66.73	406.4+0.4  0	27min	φ28.4	φ14.29	52.6	32/38	46	φ23	36.6	/	/
T67C	66.7	400+0.4  0	29.6min	φ32	φ18	62	40	56.3	φ25	42.8	180	0.65
T68A	68.4	410.4+0.3 -0.1	20.7min	φ28	φ12.7	42.3	33/39	45.5	φ21	30.6	80	0.31
T68B	68.4	410.4+0.3 -0.1	20.7min	φ28	φ12.7	46	33/39	45.5	φ21	30.6	98	0.34
T68C	68.4	410.4+0.3 -0.1	20.7min	φ28	φ12.7	42.3	33/39	45.5	φ21	30.6	120	0.31
T68D	68.4	410.4+0.3 -0.1	20.7min	φ32	φ14.29	46	33/39	45.5	φ23.5	40.85	127.4	0.39
T68E	68.4	410.4+0.3 -0.1	29.6min	φ28	φ14.29	54.9	33/39	45.5	φ22	39.6	161.7	0.4
T68F	68.4	410.4+0.3 -0.1	29.7min	φ32	φ17	57.1	39	45.5	φ23.5	56.2	166.6	0.47
T68G	68.4	410.4+0.3 -0.1	29.7min	φ32	φ17	57.1	39	45.5	φ23.5	56.2	166.6	0.48
T68H	68.4	410.4+0.3 -0.1	36min	φ36	φ22	81	44/52	52	φ23.5	56.2	235.3	1.06
T68I	68.4	410.4+0.3 -0.1	29.7min	φ32	φ18	61	39/48	56	φ23.5	56.2	245	0.58