Gates PowerGrip GT® Synchronous Timing Belt Pulleys

2mm Pitch PGGT
2mm pitch x 6mm and 9mm belt widths
NOTE: ALL DIMENSIONS IN INCHES.  

For 6mm Belt Widths
example of part number structure   12-2GT-06-6FC-A-125 # grooves - pitch - belt width - type - material - bore
PART NUMBER	Pitch Diam.	Pulley O.D.	Flange O.D. ±1/64	O.A.L	Face Width	Hub Diam. ±1/64
12 2GT 06 6FC A 125	.301	.281	.480	.562	.282	.480
13 2GT 06 6FC A 125	.326	.306	.505	.562	.282	.505
14 2GT 06 6FC A 125	.351	.331	.530	.562	.282	.530
15 2GT 06 6FC A 188	.376	.356	.555	.562	.282	.555
16 2GT 06 6FC A 188	.401	.381	.580	.562	.282	.580
17 2GT 06 6F  A 188	.426	.406	.635	.562	.282	.312
18 2GT 06 6F  A 188	.451	.431	.635	.622	.282	.312
19 2GT 06 6F  A 188	.476	.456	.635	.622	.282	.338
20 2GT 06 6F  A 188	.501	.481	.685	.622	.282	.364
21 2GT 06 6F  A 188	.526	.506	.710	.622	.282	.390
22 2GT 06 6F  A 188	.551	.531	.740	.622	.282	.390
24 2GT 06 6F  A 250	.602	.582	.815	.684	.282	.442
26 2GT 06 6F  A 250	.652	.632	.840	.684	.282	.490
28 2GT 06 6F  A 250	.702	.682	.895	.684	.282	.494
30 2GT 06 6F  A 250	.752	.732	.945	.684	.282	.546
32 2GT 06 6F  A 250	.802	.782	1.000	.684	.282	.598
36 2GT 06 6F  A 250	.902	.882	1.105	.684	.282	.676
40 2GT 06 6F  A 250	1.003	.983	1.210	.715	.282	.754
45 2GT 06 6F  A 250	1.128	1.108	1.340	.715	.282	.900
50 2GT 06 6F  A 250	1.253	1.233	1.470	.715	.282	.940
56 2GT 06 6F  A 250	1.404	1.384	1.575	.715	.282	1.030
62 2GT 06 6   A 250	1.554	1.534	-	.750	.375	1.148
68 2GT 06 6   A 250	1.704	1.684	-	.750	.375	1.185
74 2GT 06 6   A 250	1.855	1.835	-	.750	.375	1.215
80 2GT 06 6   A 313	2.005	1.985	-	.750	.375	1.500
For 9mm Belt Widths
example of part number structure   12-2GT-09-6FC-A-125 # grooves - pitch - belt width - type - material - bore
PART NUMBER	Pitch Diam.	Pulley O.D.	Flange O.D. ±1/64	O.A.L	Face Width	Hub Diam. ±1/64
12 2GT 09 6FC A 125	.301	.281	.480	.562	.282	.480
13 2GT 09 6FC A 125	.326	.306	.505	.562	.282	.505
14 2GT 09 6FC A 125	.351	.331	.530	.562	.282	.530
15 2GT 09 6FC A 188	.376	.356	.555	.562	.282	.555
16 2GT 09 6FC A 188	.401	.381	.580	.562	.282	.580
17 2GT 09 6F  A 188	.426	.406	.635	.562	.282	.312
18 2GT 09 6F  A 188	.451	.431	.635	.622	.282	.312
19 2GT 09 6F  A 188	.476	.456	.635	.622	.282	.338
20 2GT 09 6F  A 188	.501	.481	.685	.622	.282	.364
21 2GT 09 6F  A 188	.526	.506	.710	.622	.282	.390
22 2GT 09 6F  A 188	.551	.531	.740	.622	.282	.390
24 2GT 09 6F  A 250	.602	.582	.815	.684	.282	.442
26 2GT 09 6F  A 250	.652	.632	.840	.684	.282	.490
28 2GT 09 6F  A 250	.702	.682	.895	.684	.282	.494
30 2GT 09 6F  A 250	.752	.732	.945	.684	.282	.546
32 2GT 09 6F  A 250	.802	.782	1.000	.684	.282	.598
36 2GT 09 6F  A 250	.902	.882	1.105	.684	.282	.676
40 2GT 09 6F  A 250	1.003	.983	1.210	.715	.282	.754
45 2GT 09 6F  A 250	1.128	1.108	1.340	.715	.282	.900
50 2GT 09 6F  A 250	1.253	1.233	1.470	.715	.282	.940
56 2GT 09 6F  A 250	1.404	1.384	1.575	.715	.282	1.030
62 2GT 09 6   A 250	1.554	1.534	-	.750	.375	1.148
68 2GT 09 6   A 250	1.704	1.684	-	.750	.375	1.185
74 2GT 09 6   A 250	1.855	1.835	-	.750	.375	1.215
80 2GT 09 6   A 313	2.005	1.985	-	.750	.375	1.500

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3mm Pitch PGGT
3mm pitch x 9mm and 15mm belt widths
NOTE: ALL DIMENSIONS IN INCHES.

For 9mm Belt Widths
example of part number structure   16-3GT-09-6FC-A-125 # grooves - pitch - belt width - type - material - bore
PART NUMBER	Pitch Diam.	Pulley O.D.	Flange O.D. ±1/64	O.A.L	Face Width	Hub Diam. ±1/64
16 3GT 09 6FC A 125	.602	.572	.710	.691	.401	.710
17 3GT 09 6FC A 125	.639	.609	.740	.691	.401	.740
18 3GT 09 6F A 188	.677	.647	.790	.821	.401	.442
19 3GT 09 6F A 188	.714	.684	.827	.821	.401	.479
20 3GT 09 6F A 188	.752	.722	.895	.821	.401	.500
21 3GT 09 6F A 188	.790	.760	.895	.821	.401	.500
22 3GT 09 6F A 188	.827	.797	.945	.821	.401	.562
24 3GT 09 6F A 250	.902	.872	1.025	.821	.401	.625
26 3GT 09 6F A 250	.977	.947	1.105	.821	.401	.625
28 3GT 09 6F A 250	1.053	1.023	1.173	.821	.401	.701
30 3GT 09 6F A 250	1.128	1.098	1.250	.821	.401	.776
32 3GT 09 6F A 250	1.203	1.173	1.323	.821	.401	.851
34 3GT 09 6F A 250	1.278	1.248	1.398	.833	.401	.921
36 3GT 09 6F A 250	1.353	1.323	1.473	.833	.401	1.000
38 3GT 09 6F A 250	1.429	1.399	1.549	.833	.401	1.075
40 3GT 09 6F A 250	1.504	1.474	1.625	.833	.401	1.150
45 3GT 09 6F A 250	1.692	1.662	1.775	.833	.401	1.250
50 3GT 09 6 A 313	1.880	1.850	-	.875	.500	1.250
56 3GT 09 6 A 313	2.105	2.075	-	.875	.500	1.250
62 3GT 09 6 A 313	2.331	2.301	-	.875	.500	1.250
68 3GT 09 6 A 313	2.557	2.527	-	.875	.500	1.250
74 3GT 09 6 A 313	2.782	2.752	-	.875	.500	1.250
80 3GT 09 6 A 313	3.008	2.978	-	.875	.500	1.250
For 15mm Belt Widths
example of part number structure   16-3GT-15-6FC-A-125 # grooves - pitch - belt width - type - material - bore
PART NUMBER	Pitch Diam.	Pulley O.D.	Flange O.D. ±1/64	O.A.L	Face Width	Hub Diam. ±1/64
16 3GT 15 6FC A 125	.602	.572	.710	.927	.637	.710
17 3GT 15 6FC A 125	.639	.609	.740	.927	.637	.740
18 3GT 15 6F A 188	.677	.647	.790	1.057	.637	.442
19 3GT 15 6F A 188	.714	.684	.827	1.057	.637	.479
20 3GT 15 6F A 188	.752	.722	.895	1.057	.637	.500
21 3GT 15 6F A 188	.790	.760	.895	1.057	.637	.500
22 3GT 15 6F A 188	.827	.797	.945	1.057	.637	.562
24 3GT 15 6F A 250	.902	.872	1.025	1.057	.637	.625
26 3GT 15 6F A 250	.977	.947	1.105	1.057	.637	.625
28 3GT 15 6F A 250	1.053	1.023	1.173	1.057	.637	.701
30 3GT 15 6F A 250	1.128	1.098	1.250	1.057	.637	.776
32 3GT 15 6F A 250	1.203	1.173	1.323	1.057	.637	.851
34 3GT 15 6F A 250	1.278	1.248	1.398	1.069	.637	.921
36 3GT 15 6F A 250	1.353	1.323	1.473	1.069	.637	1.000
38 3GT 15 6F A 250	1.429	1.399	1.549	1.069	.637	1.075
40 3GT 15 6F A 250	1.504	1.474	1.625	1.069	.637	1.150
45 3GT 15 6F A 250	1.692	1.662	1.775	1.069	.637	1.250
50 3GT 15 6 A 313	1.880	1.850	-	1.111	.736	1.250
56 3GT 15 6 A 313	2.105	2.075	-	1.111	.736	1.250
62 3GT 15 6 A 313	2.331	2.301	-	1.111	.736	1.250
68 3GT 15 6 A 313	2.557	2.527	-	1.111	.736	1.250
74 3GT 15 6 A 313	2.782	2.752	-	1.111	.736	1.250
80 3GT 15 6 A 313	3.008	2.978	-	1.111	.736	1.250

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5mm Pitch PGGT
5mm pitch x15mm and 25mm belt widths
NOTE: ALL DIMENSIONS IN INCHES.

For 15mm Belt Widths
example of part number structure   18-5GT-15-6F-A-250 # grooves - pitch - belt width - type - material - bore
PART NUMBER	Pitch Diam.	Pulley O.D.	Flange O.D. ±1/64	O.A.L	Face Width	Hub Diam. ±1/64
18 5GT 15 6F A 250	1.128	1.083	1.385	1.250	.890	.680
19 5GT 15 6F A 250	1.191	1.146	1.420	1.250	.890	.880
20 5GT 15 6F A 250	1.253	1.208	1.510	1.250	.890	.900
21 5GT 15 6F A 250	1.316	1.271	1.530	1.250	.890	.900
22 5GT 15 6F A 250	1.379	1.334	1.530	1.280	.890	.940
23 5GT 15 6F A 375	1.441	1.396	1.660	1.280	.890	1.150
24 5GT 15 6F A 375	1.504	1.459	1.780	1.280	.890	1.180
25 5GT 15 6F A 375	1.566	1.521	1.780	1.280	.890	1.180
26 5GT 15 6F A 375	1.629	1.584	1.900	1.280	.890	1.210
28 5GT 15 6F A 500	1.754	1.709	2.020	1.340	.890	1.370
30 5GT 15 6F A 500	1.880	1.835	2.130	1.340	.890	1.530
32 5GT 15 6F A 500	2.005	1.960	2.130	1.340	.890	1.550
34 5GT 15 6F A 500	2.130	2.085	2.380	1.340	.890	1.690
36 5GT 15 6F A 500	2.256	2.211	2.380	1.340	.890	1.690
38 5GT 15 6F A 500	2.381	2.336	2.610	1.340	.890	1.960
40 5GT 15 6F A 500	2.506	2.461	2.730	1.380	.890	1.090
45 5GT 15 6F A 500	2.820	2.775	3.090	1.380	.890	1.340
50 5GT 15 6F A 500	3.133	3.088	3.330	1.380	.890	1.650
For 25mm Belt Widths
example of part number structure   18-5GT-25-6F-A-250 # grooves - pitch - belt width - type - material - bore
PART NUMBER	Pitch Diam.	Pulley O.D.	Flange O.D. ±1/64	O.A.L	Face Width	Hub Diam. ±1/64
18 5GT 25 6F A 250	1.128	1.083	1.385	1.65	1.28	.680
19 5GT 25 6F A 250	1.191	1.146	1.420	1.65	1.28	.880
20 5GT 25 6F A 250	1.253	1.208	1.510	1.65	1.28	.900
21 5GT 25 6F A 250	1.316	1.271	1.530	1.65	1.28	.900
22 5GT 25 6F A 250	1.379	1.334	1.530	1.68	1.28	.940
23 5GT 25 6F A 375	1.441	1.396	1.660	1.68	1.28	1.150
24 5GT 25 6F A 375	1.504	1.459	1.780	1.68	1.28	1.180
25 5GT 25 6F A 375	1.566	1.521	1.780	1.68	1.28	1.180
26 5GT 25 6F A 375	1.629	1.584	1.900	1.68	1.28	1.210
28 5GT 25 6F A 375	1.754	1.709	2.020	1.73	1.28	1.370
30 5GT 25 6F A 500	1.880	1.835	2.130	1.73	1.28	1.530
32 5GT 25 6F A 500	2.005	1.960	2.130	1.73	1.28	1.550
34 5GT 25 6F A 500	2.130	2.085	2.380	1.73	1.28	1.690
36 5GT 25 6F A 500	2.256	2.211	2.380	1.73	1.28	1.690
38 5GT 25 6F A 500	2.381	2.336	2.610	1.73	1.28	1.960
40 5GT 25 6F A 500	2.506	2.461	2.730	1.78	1.28	1.090
45 5GT 25 6F A 500	2.820	2.775	3.090	1.78	1.28	1.340
50 5GT 25 6F A 500	3.133	3.088	3.330	1.78	1.28	1.650

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part number configuration, definitions, and conversions

# Grooves

Use any suitable number of grooves. ex: 12 or 18

Pitch

RMA/MPTA Pitch Designation. .080" = MXL .200" = XL .375" = L .500" = H

Belt Width

Belt width expressed according to MPTA/RMA IP-24 standard. 3/8" = .375 = 037 1/2" = .500 = 050 1-1/2" = 1.500 = 150

Type

See drawings for type design. 6FC, 6F, 6, 6W, 3F, or 3

Material

Steel = S, or Aluminum = A

Bore

Bore dimensions expressed in decimal inches. 1/8" = .125 = 125 1/2" = .500 = 500 3/4" = .750 = 750