Tables / ANSI 80

Sprocket chart 1" x 5/8" — ANSI 80 (16A)

Chain American ANSI B29.1 · pitch 1.000" (25.40 mm) · roller Ø 0.625" · inner width 0.620" · simplex tooth width 0.589". Dimensions in inches. Tap a row to open it in the calculator (duplex, triplex, mm, material).

N	PD	OD	BD	CD	Max hub
8	2.613	3.014	1.988	1.988	1.396
9	2.924	3.347	2.299	2.254	1.730
10	3.236	3.678	2.611	2.611	2.060
11	3.549	4.006	2.924	2.888	2.388
12	3.864	4.332	3.239	3.239	2.714
13	4.179	4.657	3.553	3.523	3.039
14	4.494	4.981	3.869	3.869	3.363
15	4.810	5.305	4.185	4.158	3.687
16	5.126	5.627	4.501	4.501	4.009
17	5.442	5.950	4.817	4.794	4.332
18	5.759	6.271	5.134	5.134	4.653
19	6.076	6.593	5.450	5.430	4.975
20	6.392	6.914	5.767	5.767	5.296
21	6.710	7.235	6.084	6.066	5.617
22	7.027	7.555	6.401	6.401	5.937
23	7.344	7.876	6.719	6.702	6.258
24	7.661	8.196	7.036	7.036	6.578
25	7.979	8.516	7.354	7.338	6.898
26	8.296	8.836	7.671	7.671	7.218
27	8.614	9.156	7.989	7.974	7.538
28	8.931	9.475	8.306	8.306	7.857
29	9.249	9.795	8.624	8.610	8.177
30	9.567	10.114	8.942	8.942	8.496
31	9.885	10.434	9.259	9.247	8.816
32	10.202	10.753	9.577	9.577	9.135
33	10.520	11.072	9.895	9.883	9.455
34	10.838	11.392	10.213	10.213	9.774
35	11.156	11.711	10.531	10.519	10.093
36	11.474	12.030	10.849	10.849	10.412
37	11.792	12.349	11.166	11.156	10.731
38	12.110	12.668	11.484	11.484	11.050
39	12.428	12.987	11.802	11.792	11.369
40	12.745	13.306	12.120	12.120	11.688
41	13.063	13.625	12.438	12.429	12.007
42	13.381	13.944	12.756	12.756	12.326
43	13.700	14.263	13.074	13.065	12.645
44	14.018	14.582	13.392	13.392	12.964
45	14.336	14.901	13.710	13.702	13.283
46	14.654	15.219	14.028	14.028	13.602
47	14.972	15.538	14.347	14.338	13.920
48	15.290	15.857	14.665	14.665	14.239
49	15.608	16.176	14.983	14.975	14.558
50	15.926	16.495	15.301	15.301	14.877
51	16.244	16.813	15.619	15.611	15.195
52	16.562	17.132	15.937	15.937	15.514
53	16.880	17.451	16.255	16.248	15.833
54	17.198	17.769	16.573	16.573	16.151
55	17.517	18.088	16.891	16.884	16.470
56	17.835	18.407	17.210	17.210	16.789
57	18.153	18.725	17.528	17.521	17.107
58	18.471	19.044	17.846	17.846	17.426
59	18.789	19.363	18.164	18.157	17.745
60	19.107	19.681	18.482	18.482	18.063
61	19.425	20.000	18.800	18.794	18.382
62	19.744	20.318	19.118	19.118	18.700
63	20.062	20.637	19.437	19.430	19.019
64	20.380	20.955	19.755	19.755	19.338
65	20.698	21.274	20.073	20.067	19.656
66	21.016	21.593	20.391	20.391	19.975
67	21.335	21.911	20.709	20.704	20.293
68	21.653	22.230	21.028	21.028	20.612
69	21.971	22.548	21.346	21.340	20.930
70	22.289	22.867	21.664	21.664	21.249
71	22.607	23.185	21.982	21.977	21.567
72	22.926	23.504	22.300	22.300	21.886
73	23.244	23.822	22.619	22.613	22.204
74	23.562	24.141	22.937	22.937	22.523
75	23.880	24.459	23.255	23.250	22.841
76	24.198	24.778	23.573	23.573	23.160
77	24.517	25.096	23.891	23.886	23.478
78	24.835	25.415	24.210	24.210	23.797
79	25.153	25.733	24.528	24.523	24.115
80	25.471	26.052	24.846	24.846	24.434
81	25.790	26.370	25.164	25.160	24.752
82	26.108	26.689	25.483	25.483	25.071
83	26.426	27.007	25.801	25.796	25.389
84	26.744	27.326	26.119	26.119	25.708
85	27.063	27.644	26.437	26.433	26.026
86	27.381	27.962	26.756	26.756	26.345
87	27.699	28.281	27.074	27.069	26.663
88	28.017	28.599	27.392	27.392	26.981
89	28.335	28.918	27.710	27.706	27.300
90	28.654	29.236	28.029	28.029	27.618
91	28.972	29.555	28.347	28.342	27.937
92	29.290	29.873	28.665	28.665	28.255
93	29.608	30.192	28.983	28.979	28.574
94	29.927	30.510	29.302	29.302	28.892
95	30.245	30.828	29.620	29.616	29.210
96	30.563	31.147	29.938	29.938	29.529
97	30.881	31.465	30.256	30.252	29.847
98	31.200	31.784	30.575	30.575	30.166
99	31.518	32.102	30.893	30.889	30.484
100	31.836	32.421	31.211	31.211	30.803
101	32.154	32.739	31.529	31.525	31.121
102	32.473	33.057	31.848	31.848	31.439
103	32.791	33.376	32.166	32.162	31.758
104	33.109	33.694	32.484	32.484	32.076
105	33.428	34.013	32.802	32.799	32.395
106	33.746	34.331	33.121	33.121	32.713
107	34.064	34.649	33.439	33.435	33.031
108	34.382	34.968	33.757	33.757	33.350
109	34.701	35.286	34.075	34.072	33.668
110	35.019	35.605	34.394	34.394	33.987
111	35.337	35.923	34.712	34.708	34.305
112	35.655	36.241	35.030	35.030	34.623
113	35.974	36.560	35.348	35.345	34.942
114	36.292	36.878	35.667	35.667	35.260
115	36.610	37.197	35.985	35.982	35.579
116	36.928	37.515	36.303	36.303	35.897
117	37.247	37.833	36.622	36.618	36.215
118	37.565	38.152	36.940	36.940	36.534
119	37.883	38.470	37.258	37.255	36.852
120	38.202	38.788	37.576	37.576	37.171

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).