T Timing Pulleys

Timing belt pulleys have trapezoidal teeth and commonly used in in automation, robotics, or CNC applications. Grob carries 2.5mm, 5mm, and 10mm pitch in aluminum, other materials are available upon request.

T2.5 Timing Belt Pulleys Metric Pitch 2.5mm (.0984″)

Part Number	No. Teeth	Profile	Pitch Dia.	Outside Dia.	Root Dia.
2.5MM-T-10	10	SE	.317	.292	.231
2.5MM-T-11	11	SE	.348	.324	.263
2.5MM-T-12	12	SE	.378	.353	.292
2.5MM-T-13	13	SE	.409	.385	.324
2.5MM-T-14	14	SE	.441	.416	.355
2.5MM-T-15	15	SE	.472	.448	.387
2.5MM-T-16	16	SE	.504	.479	.418
2.5MM-T-17	17	SE	.535	.511	.450
2.5MM-T-18	18	SE	.567	.542	.481
2.5MM-T-19	19	SE	.598	.574	.513
2.5MM-T-20	20	SE	.630	.605	.544
2.5MM-T-21	21	N	.661	.637	.558
2.5MM-T-22	22	N	.693	.668	.689
2.5MM-T-24	24	N	.754	.729	.650
2.5MM-T-25	25	N	.785	.761	.682
2.5MM-T-26	26	N	.817	.792	.713
2.5MM-T-27	27	N	.848	.824	.745
2.5MM-T-28	28	N	.880	.855	.776
2.5MM-T-29	29	N	.911	.887	.808
2.5MM-T-30	30	N	.943	.918	.839
2.5MM-T-32	32	N	1.006	.981	.902
2.5MM-T-34	34	N	1.069	1.044	.965
2.5MM-T-35	35	N	1.100	1.076	.997
2.5MM-T-36	36	N	1.132	1.107	1.028
2.5MM-T-38	38	N	1.195	1.170	1.091
2.5MM-T-40	40	N	1.256	1.231	1.152
2.5MM-T-42	42	N	1.319	1.294	1.215
2.5MM-T-44	44	N	1.382	1.357	1.278
2.5MM-T-45	45	N	1.413	1.389	1.310
2.5MM-T-48	48	N	1.508	1.483	1.404
2.5MM-T-50	50	N	1.571	1.546	1.467
2.5MM-T-60	60	N	1.884	1.859	1.780
2.5MM-T-65	65	N	2.039	2.015	1.936
2.5MM-T-70	70	N	2.197	2.172	2.093
2.5MM-T-72	72	N	2.260	2.235	2.156
2.5MM-T-90	90	N	2.825	2.800	2.721
2.5MM-T-100	100	N	3.138	3.113	3.034

T5 Timing Belt Pulleys Metric Pitch 5mm (.1969″)

Part Number	No. Teeth	Profile	Pitch Dia.	Outside Dia.	Root Dia.
5MM-T-10	10	SE	.632	.592	.493
5MM-T-11	11	SE	.695	.655	.556
5MM-T-12	12	SE	.758	.718	.619
5MM-T-13	13	SE	.821	.780	.681
5MM-T-14	14	SE	.884	.843	.744
5MM-T-15	15	SE	.947	.906	.807
5MM-T-16	16	SE	1.008	.968	.869
5MM-T-17	17	SE	1.071	1.030	.931
5MM-T-18	18	SE	1.134	1.093	.994
5MM-T-19	19	SE	1.197	1.156	1.057
5MM-T-20	20	SE	1.260	1.219	1.120
5MM-T-21	21	N	1.325	1.284	1.129
5MM-T-22	22	N	1.388	1.347	1.192
5MM-T-23	23	N	1.449	1.408	1.253
5MM-T-24	24	N	1.512	1.471	1.316
5MM-T-25	25	N	1.573	1.532	1.377
5MM-T-26	26	N	1.638	1.597	1.442
5MM-T-27	27	N	1.701	1.660	1.505
5MM-T-28	28	N	1.762	1.721	1.566
5MM-T-29	29	N	1.825	1.784	1.629
5MM-T-30	30	N	1.886	1.845	1.690
5MM-T-31	31
5MM-T-32	32	N	2.012	1.971	1.816
5MM-T-33	33	N	2.067	2.034	1.879
5MM-T-34	34	N	2.138	2.097	1.942
5MM-T-35	35	N	2.201	2.160	2.005
5MM-T-36	36	N	2.262	2.221	2.066
5MM-T-37	37	N	2.325	2.284	2.129
5MM-T-38	38	N	2.388	2.347	2.192
5MM-T-39	39	N	2.445	2.412	2.257
5MM-T-40	40	N	2.514	2.473	2.318
5MM-T-41	41	N	2.571	2.534	2.379
5MM-T-42	42	N	2.640	2.599	2.444
5MM-T-43	43	N	2.693	2.661	2.506
5MM-T-44	44	N	2.764	2.723	2.568
5MM-T-45	45	N	2.827	2.786	2.631
5MM-T-46	46	N	2.890	2.849	2.694
5MM-T-47	47
5MM-T-48	48	N	3.014	2.973	2.818
5MM-T-50	50	N	3.138	3.097	2.942
5MM-T-56	56	N	3.508	3.475	3.320
5MM-T-60	60	N	3.766	3.725	3.570
5MM-T-64	64	N	4.019	3.975	3.820
5MM-T-72	72	N	4.518	4.476	4.322
5MM-T-80	80	N	5.018	4.976	4.822
5MM-T-90	90	N	5.648	5.606	5.452

T10 Timing Belt Pulleys Metric Pitch 10mm (.3937″)

Part Number	No. Teeth	Profile	Pitch Dia.	Outside Dia.	Root Dia.
10MM-T-10	10	SE	1.259	1.179	.972
10MM-T-11	11	SE	1.384	1.305	1.098
10MM-T-12	12	SE	1.510	1.430	1.223
10MM-T-13	13	SE	1.636	1.556	1.349
10MM-T-14	14	SE	1.760	1.680	1.473
10MM-T-15	15	SE	1.886	1.806	1.599
10MM-T-16	16	SE	2.012	1.932	1.725
10MM-T-17	17	SE	2.136	2.056	1.849
10MM-T-18	18	SE	2.262	2.182	1.975
10MM-T-19	19	SE	2.388	2.308	2.101
10MM-T-20	20	SE	2.512	2.432	2.225
10MM-T-21	21	N	2.630	2.558	2.287
10MM-T-22	22	N	2.764	2.684	2.413
10MM-T-23	23	N	2.890	2.810	2.539
10MM-T-24	24	N	3.014	2.934	2.663
10MM-T-25	25	N	3.140	3.060	2.789
10MM-T-26	26	N	3.266	3.184	2.913
10MM-T-27	27	N	3.390	3.310	3.039
10MM-T-28	28	N	3.514	3.434	3.163
10MM-T-29	29	N	3.634	3.562	3.291
10MM-T-30	30	N	3.766	3.686	3.415
10MM-T-31	31
10MM-T-32	32	N	4.016	3.936	3.665
10MM-T-33	33	N	4.134	4.062	3.791
10MM-T-34	34	N	4.268	4.187	3.917
10MM-T-35	35	N	4.386	4.314	4.043
10MM-T-36	36	N	4.518	4.438	4.167
10MM-T-37	37	N	4.638	4.562	4.291
10MM-T-38	38	N	4.768	4.688	4.417
10MM-T-39	39	N	4.886	4.814	4.543
10MM-T-40	40	N	5.018	4.938	4.667
10MM-T-41	41	N	5.138	5.066	4.795
10MM-T-42	42	N	5.264	5.314	4.917
10MM-T-43	43	N	5.390	5.440	5.043
10MM-T-44	44	N	5.520	5.440	5.169
10MM-T-45	45	N	5.646	5.566	5.295
10MM-T-46	46	N	5.764	5.692	5.421
10MM-T-47	47
10MM-T-48	48	N	6.022	5.942	5.671

How to Request a Timing Belt Pulley Quote

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When requesting a quote for timing belt pulleys from Grob Inc., please include as much of the following as possible:

Timing Belt Pulley Number
- Don’t see a timing belt pulley that fits your need? We do custom timing belt pulleys as well!
Material
- All Grob Standard timing belt pulleys are stocked in 1117 mild steel and 4140, but other materials are available
- If you need a specific material, or would like to discuss with a Grob rep – just let us know!
Length
- All Grob Standard timing belt pulleys are sold by the foot
- List the lengths & number of pieces you require in your request

Example:

timing belt pulley number: 2.5MM-T-10
- Specifications for each standard timing belt pulley
  can be found in the table above
- This example is a 2.5 diameter pitch, 10 tooth
Material: 1117 mild steel
Length & #: 2 pieces; 3ft each
Order: 2x, 3ft, 2.5MM-T-10-1117

Placing all of this information in your quote request, which can be simplified: 2x, 3ft, 2.5MM-T-10-1117 will ensure that our team can get you the most accurate quote as quickly as possible.

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