Tables / ANSI 50

Sprocket chart 5/8" x 3/8" — ANSI 50 (10A)

Chain American ANSI B29.1 · pitch 0.625" (15.88 mm) · roller Ø 0.400" · inner width 0.370" · simplex tooth width 0.352". Dimensions in inches. Tap a row to open it in the calculator (duplex, triplex, mm, material).

N	PD	OD	BD	CD	Max hub
8	1.633	1.884	1.233	1.233	0.861
9	1.827	2.092	1.427	1.400	1.069
10	2.023	2.299	1.623	1.623	1.276
11	2.218	2.504	1.818	1.796	1.481
12	2.415	2.708	2.015	2.015	1.685
13	2.612	2.911	2.212	2.193	1.888
14	2.809	3.113	2.409	2.409	2.091
15	3.006	3.315	2.606	2.590	2.293
16	3.204	3.517	2.804	2.804	2.494
17	3.401	3.718	3.001	2.987	2.696
18	3.599	3.920	3.199	3.199	2.897
19	3.797	4.120	3.397	3.384	3.098
20	3.995	4.321	3.595	3.595	3.298
21	4.193	4.522	3.793	3.782	3.499
22	4.392	4.722	3.992	3.992	3.699
23	4.590	4.922	4.190	4.179	3.899
24	4.788	5.122	4.388	4.388	4.100
25	4.987	5.322	4.587	4.577	4.300
26	5.185	5.522	4.785	4.785	4.500
27	5.384	5.722	4.984	4.975	4.699
28	5.582	5.922	5.182	5.182	4.899
29	5.781	6.122	5.381	5.372	5.099
30	5.979	6.321	5.579	5.579	5.299
31	6.178	6.521	5.778	5.770	5.498
32	6.376	6.721	5.976	5.976	5.698
33	6.575	6.920	6.175	6.168	5.898
34	6.774	7.120	6.374	6.374	6.097
35	6.972	7.319	6.572	6.565	6.297
36	7.171	7.519	6.771	6.771	6.496
37	7.370	7.718	6.970	6.963	6.695
38	7.568	7.918	7.168	7.168	6.895
39	7.767	8.117	7.367	7.361	7.094
40	7.966	8.316	7.566	7.566	7.294
41	8.165	8.516	7.765	7.759	7.493
42	8.363	8.715	7.963	7.963	7.692
43	8.562	8.914	8.162	8.156	7.892
44	8.761	9.114	8.361	8.361	8.091
45	8.960	9.313	8.560	8.554	8.290
46	9.159	9.512	8.759	8.759	8.489
47	9.357	9.711	8.957	8.952	8.689
48	9.556	9.911	9.156	9.156	8.888
49	9.755	10.110	9.355	9.350	9.087
50	9.954	10.309	9.554	9.554	9.286
51	10.153	10.508	9.753	9.748	9.486
52	10.351	10.707	9.951	9.951	9.685
53	10.550	10.907	10.150	10.146	9.884
54	10.749	11.106	10.349	10.349	10.083
55	10.948	11.305	10.548	10.543	10.282
56	11.147	11.504	10.747	10.747	10.481
57	11.346	11.703	10.946	10.941	10.681
58	11.544	11.902	11.144	11.144	10.880
59	11.743	12.102	11.343	11.339	11.079
60	11.942	12.301	11.542	11.542	11.278
61	12.141	12.500	11.741	11.737	11.477
62	12.340	12.699	11.940	11.940	11.676
63	12.539	12.898	12.139	12.135	11.875
64	12.738	13.097	12.338	12.338	12.074
65	12.936	13.296	12.536	12.533	12.273
66	13.135	13.495	12.735	12.735	12.473
67	13.334	13.694	12.934	12.930	12.672
68	13.533	13.894	13.133	13.133	12.871
69	13.732	14.093	13.332	13.328	13.070
70	13.931	14.292	13.531	13.531	13.269
71	14.130	14.491	13.730	13.726	13.468
72	14.328	14.690	13.928	13.928	13.667
73	14.527	14.889	14.127	14.124	13.866
74	14.726	15.088	14.326	14.326	14.065
75	14.925	15.287	14.525	14.522	14.264
76	15.124	15.486	14.724	14.724	14.463
77	15.323	15.685	14.923	14.920	14.662
78	15.522	15.884	15.122	15.122	14.861
79	15.721	16.083	15.321	15.318	15.060
80	15.920	16.282	15.520	15.520	15.260
81	16.118	16.481	15.718	15.715	15.459
82	16.317	16.680	15.917	15.917	15.658
83	16.516	16.879	16.116	16.113	15.857
84	16.715	17.078	16.315	16.315	16.056
85	16.914	17.278	16.514	16.511	16.255
86	17.113	17.477	16.713	16.713	16.454
87	17.312	17.676	16.912	16.909	16.653
88	17.511	17.875	17.111	17.111	16.852
89	17.710	18.074	17.310	17.307	17.051
90	17.909	18.273	17.509	17.509	17.250
91	18.107	18.472	17.707	17.705	17.449
92	18.306	18.671	17.906	17.906	17.648
93	18.505	18.870	18.105	18.103	17.847
94	18.704	19.069	18.304	18.304	18.046
95	18.903	19.268	18.503	18.501	18.245
96	19.102	19.467	18.702	18.702	18.444
97	19.301	19.666	18.901	18.898	18.643
98	19.500	19.865	19.100	19.100	18.842
99	19.699	20.064	19.299	19.296	19.041
100	19.898	20.263	19.498	19.498	19.240
101	20.097	20.462	19.697	19.694	19.439
102	20.295	20.661	19.895	19.895	19.638
103	20.494	20.860	20.094	20.092	19.837
104	20.693	21.059	20.293	20.293	20.036
105	20.892	21.258	20.492	20.490	20.235
106	21.091	21.457	20.691	20.691	20.434
107	21.290	21.656	20.890	20.888	20.633
108	21.489	21.855	21.089	21.089	20.832
109	21.688	22.054	21.288	21.286	21.031
110	21.887	22.253	21.487	21.487	21.230
111	22.086	22.452	21.686	21.683	21.429
112	22.285	22.651	21.885	21.885	21.628
113	22.484	22.850	22.084	22.081	21.827
114	22.682	23.049	22.282	22.282	22.026
115	22.881	23.248	22.481	22.479	22.225
116	23.080	23.447	22.680	22.680	22.424
117	23.279	23.646	22.879	22.877	22.623
118	23.478	23.845	23.078	23.078	22.822
119	23.677	24.044	23.277	23.275	23.021
120	23.876	24.243	23.476	23.476	23.220

PD = p / sin(180°/N) · OD = p·(0.6 + cot(180°/N)) · BD = PD − roller Ø · CD = BD (even N) or PD·cos(90°/N) − roller Ø (odd N).