GT Timing Pulleys

Rounded tooth pulleys to be used with GT belts. Offered in 2mm, 3mm, 5mm, and 8mm made of aluminum. Typically paired with Gates GT drive belts.

2mm GT Power Grip Timing Belt Pulley Data

Part Name	No. Teeth	Tooth Height	Pitch Dia.	Outside Diameter	Root Diameter
2MM-GT-10	10	0.0295	0.251	0.232	0.172
2MM-GT-11	11	0.0295	0.276	0.257	0.197
2MM-GT-12	12	0.0295	0.301	0.282	0.222
2MM-GT-13	13	0.0295	0.326	0.307	0.247
2MM-GT-14	14	0.0295	0.351	0.332	0.272
2MM-GT-15	15	0.0295	0.376	0.357	0.297
2MM-GT-16	16	0.0295	0.401	0.382	0.322
2MM-GT-17	17	0.0295	0.426	0.407	0.347
2MM-GT-18	18	0.0295	0.451	0.432	0.372
2MM-GT-19	19	0.0295	0.476	0.457	0.397
2MM-GT-20	20	0.0295	0.501	0.482	0.422
2MM-GT-21	21	0.0295	0.526	0.507	0.447
2MM-GT-22	22	0.0295	0.551	0.532	0.472
2MM-GT-23	23	0.0295	0.576	0.557	0.497
2MM-GT-24	24	0.0295	0.602	0.583	0.523
2MM-GT-25	25	0.0295	0.627	0.608	0.548
2MM-GT-26	26	0.0295	0.652	0.633	0.573
2MM-GT-27	27	0.0295	0.677	0.658	0.598
2MM-GT-28	28	0.0295	0.702	0.683	0.623
2MM-GT-29	29	0.0295	0.727	0.708	0.648
2MM-GT-30	30	0.0295	0.752	0.733	0.673
2MM-GT-31	31	0.0295	0.777	0.758	0.698
2MM-GT-32	32	0.0295	0.802	0.783	0.723
2MM-GT-33	33	0.0295	0.827	0.808	0.748
2MM-GT-34	34	0.0295	0.852	0.833	0.773
2MM-GT-35	35	0.0295	0.877	0.858	0.798
2MM-GT-36	36	0.0300	0.902	0.883	0.822
2MM-GT-37	37	0.0300	0.927	0.908	0.847
2MM-GT-38	38	0.0300	0.952	0.933	0.872
2MM-GT-39	39	0.0300	0.977	0.958	0.897
2MM-GT-40	40	0.0300	1.003	0.984	0.923
2MM-GT-41	41	0.0300	1.028	1.010	0.948
2MM-GT-42	42	0.0300	1.053	1.035	0.973
2MM-GT-43	43	0.0300	1.078	1.060	0.998
2MM-GT-44	44	0.0300	1.103	1.085	1.023
2MM-GT-45	45	0.0300	1.128	1.110	1.048
2MM-GT-46	46	0.0300	1.153	1.135	1.073
2MM-GT-47	47	0.0300	1.178	1.160	1.098
2MM-GT-48	48	0.0300	1.203	1.185	1.123
2MM-GT-49	49	0.0300	1.228	1.210	1.148
2MM-GT-50	50	0.0300	1.253	1.235	1.173
2MM-GT-51	51	0.0300	1.278	1.260	1.198
2MM-GT-52	52	0.0300	1.303	1.285	1.223
2MM-GT-53	53	0.0300	1.328	1.310	1.248
2MM-GT-54	54	0.0300	1.353	1.335	1.273
2MM-GT-55	55	0.0300	1.379	1.361	1.299
2MM-GT-56	56	0.0300	1.404	1.386	1.324
2MM-GT-57	57	0.0300	1.429	1.411	1.349
2MM-GT-58	58	0.0300	1.454	1.436	1.374
2MM-GT-59	59	0.0300	1.479	1.461	1.399
2MM-GT-60	60	0.0300	1.504	1.486	1.424
2MM-GT-61	61	0.0300	1.529	1.511	1.449
2MM-GT-62	62	0.0300	1.554	1.536	1.474
2MM-GT-63	63	0.0300	1.579	1.561	1.499
2MM-GT-64	64	0.0300	1.604	1.586	1.524
2MM-GT-65	65	0.0300	1.629	1.611	1.549
2MM-GT-66	66	0.0300	1.654	1.636	1.574
2MM-GT-67	67	0.0300	1.679	1.661	1.599
2MM-GT-68	68	0.0300	1.704	1.686	1.624
2MM-GT-69	69	0.0300	1.729	1.711	1.649
2MM-GT-70	70	0.0300	1.754	1.736	1.674
2MM-GT-71	71	0.0300	1.780	1.762	1.700
2MM-GT-72	72	0.0300	1.805	1.787	1.725
2MM-GT-73	73	0.0300	1.830	1.812	1.750
2MM-GT-74	74	0.0300	1.855	1.837	1.775
2MM-GT-75	75	0.0300	1.880	1.862	1.800
2MM-GT-76	76	0.0300	1.905	1.887	1.825
2MM-GT-77	77	0.0300	1.930	1.912	1.850
2MM-GT-78	78	0.0300	1.955	1.937	1.875
2MM-GT-79	79	0.0300	1.980	1.962	1.900
2MM-GT-80	80	0.0300	2.005	1.987	1.925
2MM-GT-81	81	0.0300	2.030	2.012	1.950
2MM-GT-82	82	0.0300	2.055	2.037	1.975
2MM-GT-83	83	0.0300	2.080	2.062	2.000
2MM-GT-84	84	0.0300	2.105	2.087	2.025
2MM-GT-85	85	0.0300	2.130	2.112	2.050
2MM-GT-86	86	0.0300	2.155	2.137	2.075
2MM-GT-87	87	0.0300	2.181	2.163	2.101
2MM-GT-88	88	0.0300	2.206	2.188	2.126
2MM-GT-89	89	0.0300	2.231	2.213	2.151
2MM-GT-90	90	0.0300	2.256	2.238	2.176
2MM-GT-91	91	0.0300	2.281	2.263	2.201

3mm GT Power Grip Timing Belt Pulley Data

Part Name	No. Teeth	Tooth Height	Pitch Dia.	Outside Diameter	Root Diameter
3MM-GT-10	10	0.044	0.376	0.347	0.258
3MM-GT-11	11	0.044	0.414	0.385	0.296
3MM-GT-12	12	0.044	0.451	0.422	0.333
3MM-GT-13	13	0.044	0.489	0.460	0.371
3MM-GT-14	14	0.044	0.526	0.497	0.408
3MM-GT-15	15	0.045	0.564	0.535	0.444
3MM-GT-16	16	0.045	0.602	0.573	0.482
3MM-GT-17	17	0.045	0.639	0.610	0.519
3MM-GT-18	18	0.045	0.677	0.648	0.557
3MM-GT-19	19	0.045	0.714	0.685	0.594
3MM-GT-20	20	0.045	0.752	0.723	0.632
3MM-GT-21	21	0.045	0.790	0.761	0.670
3MM-GT-22	22	0.045	0.827	0.798	0.707
3MM-GT-23	23	0.045	0.865	0.836	0.745
3MM-GT-24	24	0.045	0.902	0.873	0.782
3MM-GT-25	25	0.045	0.940	0.911	0.820
3MM-GT-26	26	0.045	0.977	0.948	0.857
3MM-GT-27	27	0.045	1.015	0.986	0.895
3MM-GT-28	28	0.046	1.053	1.0245	0.931
3MM-GT-29	29	0.046	1.090	1.0615	0.968
3MM-GT-30	30	0.046	1.128	1.0995	1.006
3MM-GT-31	31	0.046	1.165	1.1365	1.043
3MM-GT-32	32	0.046	1.203	1.1745	1.081
3MM-GT-33	33	0.046	1.241	1.2125	1.119
3MM-GT-34	34	0.046	1.278	1.2495	1.156
3MM-GT-35	35	0.046	1.316	1.2875	1.194
3MM-GT-36	36	0.046	1.353	1.3245	1.231
3MM-GT-37	37	0.046	1.391	1.3625	1.269
3MM-GT-38	38	0.046	1.429	1.4005	1.307
3MM-GT-39	39	0.046	1.466	1.4375	1.344
3MM-GT-40	40	0.046	1.504	1.4755	1.382
3MM-GT-41	41	0.046	1.541	1.5125	1.419
3MM-GT-42	42	0.046	1.579	1.5505	1.457
3MM-GT-43	43	0.046	1.617	1.5885	1.495
3MM-GT-44	44	0.046	1.654	1.6255	1.532
3MM-GT-45	45	0.046	1.692	1.6635	1.570
3MM-GT-46	46	0.046	1.729	1.7005	1.607
3MM-GT-47	47	0.046	1.767	1.7385	1.645
3MM-GT-48	48	0.046	1.805	1.7765	1.683
3MM-GT-49	49	0.046	1.842	1.8135	1.720
3MM-GT-50	50	0.046	1.880	1.8515	1.761
3MM-GT-51	51	0.046	1.917	1.889	1.795
3MM-GT-52	52	0.046	1.955	1.927	1.833
3MM-GT-53	53	0.046	1.993	1.965	1.871
3MM-GT-54	54	0.046	2.030	2.002	1.908
3MM-GT-55	55	0.046	2.068	2.040	1.946
3MM-GT-56	56	0.046	2.105	2.077	1.983
3MM-GT-57	57	0.047	2.143	2.115	2.019
3MM-GT-58	58	0.047	2.181	2.153	2.057
3MM-GT-59	59	0.047	2.218	2.190	2.094
3MM-GT-60	60	0.047	2.256	2.228	2.132
3MM-GT-61	61	0.047	2.293	2.265	2.169
3MM-GT-62	62	0.047	2.331	2.303	2.207
3MM-GT-63	63	0.047	2.369	2.341	2.245
3MM-GT-64	64	0.047	2.406	2.378	2.282
3MM-GT-65	65	0.047	2.444	2.416	2.320
3MM-GT-66	66	0.047	2.481	2.453	2.357
3MM-GT-67	67	0.047	2.519	2.491	2.395
3MM-GT-68	68	0.047	2.557	2.529	2.433
3MM-GT-69	69	0.047	2.594	2.566	2.470
3MM-GT-70	70	0.047	2.632	2.604	2.508
3MM-GT-71	71	0.047	2.669	2.641	2.545
3MM-GT-72	72	0.047	2.707	2.679	2.583
3MM-GT-73	73	0.047	2.744	2.716	2.620
3MM-GT-74	74	0.047	2.782	2.754	2.658
3MM-GT-75	75	0.047	2.820	2.792	2.696
3MM-GT-76	76	0.047	2.857	2.829	2.733
3MM-GT-77	77	0.047	2.895	2.867	2.771
3MM-GT-78	78	0.047	2.932	2.904	2.808
3MM-GT-79	79	0.047	2.970	2.942	2.846
3MM-GT-80	80	0.047	3.008	2.980	2.884
3MM-GT-81	81	0.047	3.045	3.017	2.921
3MM-GT-82	82	0.047	3.083	3.055	2.959
3MM-GT-83	83	0.047	3.120	3.092	2.996
3MM-GT-84	84	0.047	3.158	3.130	3.034
3MM-GT-85	85	0.047	3.196	3.168	3.072
3MM-GT-86	86	0.047	3.233	3.205	3.109
3MM-GT-87	87	0.047	3.271	3.243	3.147
3MM-GT-88	88	0.047	3.308	3.280	3.184
3MM-GT-89	89	0.047	3.346	3.318	3.222
3MM-GT-90	90	0.047	3.384	3.356	3.260
3MM-GT-91	91	0.047	3.421	3.393	3.297

5mm GT Power Grip Timing Belt Pulley Data

Part Name	No. Teeth	Tooth Height	Pitch Dia.	Outside Diameter	Root Diameter
5MM-GT-12	12	0.077	0.752	0.708	0.553
5MM-GT-13	13	0.077	0.815	0.771	0.616
5MM-GT-14	14	0.077	0.877	0.833	0.678
5MM-GT-15	15	0.077	0.940	0.896	0.741
5MM-GT-16	16	0.077	1.003	0.959	0.804
5MM-GT-17	17	0.077	1.065	1.022	0.866
5MM-GT-18	18	0.077	1.128	1.085	0.929
5MM-GT-19	19	0.077	1.191	1.148	0.992
5MM-GT-20	20	0.077	1.253	1.210	1.054
5MM-GT-21	21	0.077	1.316	1.273	1.117
5MM-GT-22	22	0.077	1.379	1.336	1.180
5MM-GT-23	23	0.077	1.441	1.398	1.242
5MM-GT-24	24	0.077	1.504	1.461	1.305
5MM-GT-25	25	0.077	1.566	1.523	1.367
5MM-GT-26	26	0.077	1.629	1.586	1.430
5MM-GT-27	27	0.077	1.692	1.649	1.493
5MM-GT-28	28	0.077	1.754	1.711	1.555
5MM-GT-29	29	0.077	1.817	1.774	1.618
5MM-GT-30	30	0.077	1.880	1.837	1.681
5MM-GT-31	31	0.077	1.942	1.899	1.743
5MM-GT-32	32	0.077	2.005	1.962	1.806
5MM-GT-33	33	0.077	2.068	2.025	1.869
5MM-GT-34	34	0.077	2.130	2.087	1.931
5MM-GT-35	35	0.077	2.193	2.150	1.994
5MM-GT-36	36	0.077	2.256	2.213	2.057
5MM-GT-37	37	0.077	2.318	2.275	2.119
5MM-GT-38	38	0.077	2.381	2.338	2.182
5MM-GT-39	39	0.077	2.444	2.401	2.245
5MM-GT-40	40	0.077	2.506	2.463	2.307
5MM-GT-41	41	0.077	2.569	2.526	2.370
5MM-GT-42	42	0.077	2.632	2.589	2.433
5MM-GT-43	43	0.077	2.694	2.651	2.495
5MM-GT-44	44	0.077	2.757	2.714	2.558
5MM-GT-45	45	0.077	2.820	2.777	2.621
5MM-GT-46	46	0.077	2.882	2.839	2.683
5MM-GT-47	47	0.077	2.945	2.902	2.746
5MM-GT-48	48	0.077	3.008	2.965	2.809
5MM-GT-49	49	0.077	3.070	3.027	2.871
5MM-GT-50	50	0.077	3.133	3.090	2.938
5MM-GT-51	51	0.077	3.196	3.153	2.997
5MM-GT-52	52	0.077	3.258	3.215	3.059
5MM-GT-53	53	0.077	3.321	3.278	3.122
5MM-GT-54	54	0.077	3.384	3.341	3.185
5MM-GT-55	55	0.077	3.446	3.403	3.247
5MM-GT-56	56	0.077	3.509	3.466	3.310
5MM-GT-57	57	0.077	3.572	3.529	3.373
5MM-GT-58	58	0.077	3.634	3.591	3.435
5MM-GT-59	59	0.077	3.697	3.654	3.498
5MM-GT-60	60	0.077	3.760	3.717	3.561
5MM-GT-61	61	0.077	3.822	3.779	3.623
5MM-GT-62	62	0.077	3.885	3.842	3.686
5MM-GT-63	63	0.077	3.948	3.905	3.749
5MM-GT-64	64	0.077	4.010	3.967	3.811
5MM-GT-65	65	0.077	4.073	4.031	3.874
5MM-GT-66	66	0.077	4.136	4.094	3.937
5MM-GT-67	67	0.077	4.198	4.156	3.999
5MM-GT-68	68	0.077	4.261	4.219	4.062
5MM-GT-69	69	0.077	4.324	4.282	4.125
5MM-GT-70	70	0.077	4.386	4.344	4.187
5MM-GT-71	71	0.077	4.449	4.407	4.250
5MM-GT-72	72	0.077	4.511	4.469	4.312
5MM-GT-73	73	0.077	4.574	4.532	4.375
5MM-GT-74	74	0.077	4.637	4.595	4.438
5MM-GT-75	75	0.077	4.699	4.657	4.500
5MM-GT-76	76	0.077	7.762	4.720	4.563
5MM-GT-77	77	0.077	4.825	4.783	4.626
5MM-GT-78	78	0.077	4.887	4.845	4.688
5MM-GT-79	79	0.077	4.950	4.908	4.751
5MM-GT-80	80	0.077	5.013	4.971	4.814
5MM-GT-81	81	0.077	5.075	5.033	4.876
5MM-GT-82	82	0.077	5.138	5.096	4.939
5MM-GT-83	83	0.077	5.201	5.159	5.002
5MM-GT-84	84	0.077	5.263	5.221	5.064
5MM-GT-85	85	0.077	5.326	5.284	5.127
5MM-GT-86	86	0.077	5.389	5.347	5.190
5MM-GT-87	87	0.077	5.451	5.409	5.252
5MM-GT-88	88	0.077	5.514	5.472	5.315
5MM-GT-89	89	0.077	5.577	5.535	5.378
5MM-GT-90	90	0.077	5.639	5.597	5.440
5MM-GT-91	91	0.077	5.702	5.660	5.503

8mm GT Poly Chain Timing Belt Pulley Data

Part Name	No. Teeth	Tooth Height	Pitch Dia.	Outside Diameter	Root Diameter
8MM-GT-22	22	0.138	2.206	2.145	1.867
8MM-GT-23	23	0.138	2.306	2.245	1.967
8MM-GT-24	24	0.138	2.406	2.345	2.067
8MM-GT-25	25	0.138	2.506	2.445	2.167
8MM-GT-26	26	0.138	2.607	2.546	2.268
8MM-GT-27	27	0.138	2.707	2.646	2.368
8MM-GT-28	28	0.138	2.807	2.746	2.468
8MM-GT-29	29	0.138	2.907	2.846	2.568
8MM-GT-30	30	0.138	3.008	2.947	2.669
8MM-GT-31	31	0.138	3.108	3.047	2.769
8MM-GT-32	32	0.138	3.208	3.147	2.869
8MM-GT-33	33	0.138	3.308	3.247	2.969
8MM-GT-34	34	0.138	3.409	3.348	3.070
8MM-GT-35	35	0.138	3.509	3.448	3.170
8MM-GT-36	36	0.138	3.609	3.548	3.270
8MM-GT-37	37	0.138	3.709	3.648	3.370
8MM-GT-38	38	0.138	3.810	3.749	3.471
8MM-GT-39	39	0.138	3.910	3.849	3.571
8MM-GT-40	40	0.138	4.010	3.950	3.671
8MM-GT-41	41	0.138	4.110	4.050	3.771
8MM-GT-42	42	0.138	4.211	4.151	3.872
8MM-GT-43	43	0.138	4.311	4.251	3.972
8MM-GT-44	44	0.138	4.411	4.351	4.072
8MM-GT-45	45	0.138	4.511	4.451	4.172
8MM-GT-46	46	0.138	4.612	4.552	4.273
8MM-GT-47	47	0.138	4.712	4.652	4.373
8MM-GT-48	48	0.138	4.812	4.752	4.473
8MM-GT-49	49	0.138	4.912	4.852	4.573
8MM-GT-50	50	0.138	5.013	4.953	4.679
8MM-GT-51	51	0.138	5.113	5.053	4.774
8MM-GT-52	52	0.138	5.213	5.153	4.874
8MM-GT-53	53	0.138	5.314	5.254	4.975
8MM-GT-54	54	0.138	5.414	5.354	5.075
8MM-GT-55	55	0.138	5.514	5.454	5.175
8MM-GT-56	56	0.138	5.614	5.554	5.275
8MM-GT-57	57	0.138	5.715	5.655	5.376
8MM-GT-58	58	0.138	5.815	5.755	5.476
8MM-GT-59	59	0.138	5.915	5.855	5.576
8MM-GT-60	60	0.138	6.015	5.955	5.676