Metric Trapezoidal Synchronous Timing Belt Pulleys

T2.5 Pitch
2.5mm pitch x 6mm belt width
Bore is ± 1 mm.
NOTE: ALL DIMENSIONS IN MILLIMETERS.  

example of part number structure   12-T2.5-06-6FC-A-4 # grooves - pitch - belt width - type - material - bore
PART NUMBER	Pitch Diam.	Pulley O.D.	Flange O.D. ±1/64	Face Width	Overall Length	Hub Diam.  ±1/64
12 T2.5 06 6FC A 4	9.60	9.00	13.0	9	16	12
14 T2.5 06 6FC A 4	11.20	10.60	15.0	9	16	14
15 T2.5 06 6FC A 4	12.00	11.40	15.0	9	16	15
16 T2.5 06 6FC A 4	12.80	12.20	16.0	9	16	16
18 T2.5 06 6F  A 4	14.40	13.80	17.5	10	16	10
19 T2.5 06 6F  A 4	15.20	14.60	18.0	10	16	10
20 T2.5 06 6F  A 4	16.00	15.40	19.5	10	16	11
22 T2.5 06 6F  A 4	17.60	17.00	23.0	10	16	11
24 T2.5 06 6F  A 4	19.15	18.55	23.0	10	16	12
25 T2.5 06 6F  A 4	19.95	19.35	23.0	10	16	13
26 T2.5 06 6F  A 4	20.75	20.15	25.0	10	16	14
28 T2.5 06 6F  A 4	22.35	21.75	25.0	10	16	14
30 T2.5 06 6F  A 6	23.95	23.35	28.0	10	16	16
32 T2.5 06 6F  A 6	25.55	24.95	32.0	10	16	16
36 T2.5 06 6F  A 6	28.70	28.10	36.0	10	16	20
40 T2.5 06 6F  A 6	31.90	31.30	38.0	10	16	22
44 T2.5 06 6   A 6	35.10	34.50	-	10	16	24
48 T2.5 06 6   A 6	38.30	37.70	-	10	16	26
60 T2.5 06 6   A 8	47.85	47.25	-	10	16	34

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T5 Pitch
5mm pitch x 10mm, 16mm, and 25mm belt widths
Bore is ± 1 mm.
NOTE: ALL DIMENSIONS IN MILLIMETERS.

For 10mm Belt Widths
example of part number structure   10-T5-10-6F-A-6 # grooves - pitch - belt width - type - material - bore
PART NUMBER	Pitch Diam.	Pulley O.D.	Flange O.D. ±1/64	Face Width	Overall Length	Hub Diam.  ±1/64
10 T5 10 6F A 6	16.05	15.05	19.5	15	21	8
12 T5 10 6F A 6	19.25	18.25	23.0	15	21	11
14 T5 10 6F A 6	22.45	21.45	25.0	15	21	14
15 T5 10 6F A 6	24.05	23.05	28.0	15	21	16
16 T5 10 6F A 6	25.60	24.60	32.0	15	21	18
18 T5 10 6F A 6	28.80	27.80	32.0	15	21	20
19 T5 10 6F A 6	30.40	29.40	36.0	15	21	22
20 T5 10 6F A 6	32.00	31.00	36.0	15	21	23
22 T5 10 6F A 6	35.25	34.25	38.0	15	21	24
24 T5 10 6F A 6	38.40	37.40	42.0	15	21	26
25 T5 10 6F A 6	40.00	39.00	44.0	15	21	26
26 T5 10 6F A 6	41.60	40.60	44.0	15	21	26
27 T5 10 6F A 8	43.20	42.20	48.0	15	21	30
28 T5 10 6F A 8	44.75	43.75	48.0	15	21	32
30 T5 10 6F A 8	47.95	46.95	51.0	15	21	34
32 T5 10 6F A 8	51.10	50.10	54.0	15	21	38
36 T5 10 6F A 8	57.45	56.45	63.0	15	21	38
40 T5 10 6F A 8	63.85	62.85	66.0	15	21	40
42 T5 10 6F A 8	67.00	66.00	71.0	15	21	40
44 T5 10 6  A 8	70.20	69.20	-	15	21	45
48 T5 10 6  A 8	76.55	75.55	-	15	21	50
60 T5 10 6  A 8	95.65	94.65	-	15	21	65
For 16mm Belt Widths
example of part number structure   10-T5-16-6F-A-6 # grooves - pitch - belt width - type - material - bore
PART NUMBER	Pitch Diam.	Pulley O.D.	Flange O.D. ±1/64	Face Width	Overall Length	Hub Diam.  ±1/64
10 T5 16 6F A 6	16.05	15.05	19.5	21	27	8
12 T5 16 6F A 6	19.25	18.25	23.0	21	27	11
14 T5 16 6F A 6	22.45	21.45	25.0	21	27	14
15 T5 16 6F A 6	24.05	23.05	28.0	21	27	16
16 T5 16 6F A 6	25.60	24.60	32.0	21	27	18
18 T5 16 6F A 8	28.80	27.80	32.0	21	27	20
19 T5 16 6F A 8	30.40	29.40	36.0	21	27	22
20 T5 16 6F A 8	32.00	31.00	36.0	21	27	23
22 T5 16 6F A 8	35.25	34.25	38.0	21	27	24
24 T5 16 6F A 8	38.40	37.40	42.0	21	27	26
25 T5 16 6F A 8	40.00	39.00	44.0	21	27	26
26 T5 16 6F A 8	41.60	40.60	44.0	21	27	26
27 T5 16 6F A 8	43.20	42.20	48.0	21	27	30
28 T5 16 6F A 8	44.75	43.75	48.0	21	27	32
30 T5 16 6F A 8	47.95	46.95	51.0	21	27	34
32 T5 16 6F A 8	51.10	50.10	54.0	21	27	38
36 T5 16 6F A 8	57.45	56.45	63.0	21	27	38
40 T5 16 6F A 8	63.85	62.85	66.0	21	27	40
42 T5 16 6F A 8	67.00	66.00	71.0	21	27	40
44 T5 16 6F A 8	70.20	69.20	-	21	27	45
48 T5 16 6F A 8	76.55	75.55	-	21	27	50
60 T5 16 6F A 8	95.65	94.65	-	21	27	65
For 25mm Belt Widths
example of part number structure   10-T5-25-6F-A-8 # grooves - pitch - belt width - type - material - bore
PART NUMBER	Pitch Diam.	Pulley O.D.	Flange O.D. ±1/64	Face Width	Overall Length	Hub Diam.  ±1/64
10 T5 25 6F A 8	16.05	15.05	19.5	30	36	8
12 T5 25 6F A 8	19.25	18.25	23.0	30	36	11
14 T5 25 6F A 8	22.45	21.45	25.0	30	36	14
15 T5 25 6F A 8	24.05	23.05	28.0	30	36	16
16 T5 25 6F A 8	25.60	24.60	32.0	30	36	18
18 T5 25 6F A 8	28.80	27.80	32.0	30	36	20
19 T5 25 6F A 8	30.40	29.40	36.0	30	36	22
20 T5 25 6F A 8	32.00	31.00	36.0	30	36	23
22 T5 25 6F A 8	35.25	34.25	38.0	30	36	24
24 T5 25 6F A 8	38.40	37.40	42.0	30	36	26
25 T5 25 6F A 8	40.00	39.00	44.0	30	36	26
26 T5 25 6F A 8	41.60	40.60	44.0	30	36	26
27 T5 25 6F A 8	43.20	42.20	48.0	30	36	30
28 T5 25 6F A 8	44.75	43.75	48.0	30	36	32
30 T5 25 6F A 8	47.95	46.95	51.0	30	36	34
32 T5 25 6F A 8	51.10	50.10	54.0	30	36	38
36 T5 25 6F A 8	57.45	56.45	63.0	30	36	38
40 T5 25 6F A 8	63.85	62.85	66.0	30	36	40
42 T5 25 6F A 8	67.00	66.00	71.0	30	36	40
44 T5 25 6F A 8	70.20	69.20	-	30	36	45
48 T5 25 6F A 8	76.55	75.55	-	30	36	50
60 T5 25 6F A 8	95.65	94.65	-	30	36	65

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T10 Pitch
10mm pitch x 16mm, 25mm, 32mm, and 50mm belt widths
Bore is ± 1 mm.
NOTE: ALL DIMENSIONS IN MILLIMETERS.

For 16mm Belt Widths
example of part number structure   12-T10-16-6F-A-6 # 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 T10 16 6F A  6	38.35	36.35	42	31	21	28
14 T10 16 6F A  8	44.72	42.70	48	31	21	32
15 T10 16 6F A  8	47.90	45.90	51	31	21	32
16 T10 16 6F A  8	51.05	49.05	54	31	21	35
18 T10 16 6F A  8	57.45	55.45	60	31	21	40
19 T10 16 6F A  8	60.60	58.60	66	31	21	44
20 T10 16 6F A  8	63.80	61.80	66	31	21	46
22 T10 16 6F A  8	70.15	68.15	75	31	21	52
24 T10 16 6F A  8	76.55	74.55	83	31	21	58
25 T10 16 6F A  8	79.70	77.70	83	31	21	60
26 T10 16 6F A  8	82.90	80.90	87	31	21	60
27 T10 16 6F A  8	86.10	84.10	91	31	21	60
28 T10 16 6F A  8	89.25	87.25	93	31	21	60
30 T10 16 6F A  8	95.65	93.65	97	31	21	60
32 T10 16 6F A 10	102.00	100.00	106	31	21	65
36 T10 16 6F A 10	114.75	112.75	119	31	21	70
40 T10 16 6F A 10	127.45	125.45	131	31	21	80
44 T10 16 6  A 10	140.20	138.20	-	31	21	88
48 T10 16 6  A 16	152.95	150.95	-	31	21	95
60 T10 16 6  A 16	191.10	189.10	-	31	21	110
For 25mm Belt Widths
example of part number structure   12-T10-25-6F-A-6 # 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 T10 25 6F A  6	38.35	36.35	42	40	30	28
14 T10 25 6F A  8	44.72	42.70	48	40	30	32
15 T10 25 6F A  8	47.90	45.90	51	40	30	32
16 T10 25 6F A  8	51.05	49.05	54	40	30	35
18 T10 25 6F A  8	57.45	55.45	60	40	30	40
19 T10 25 6F A  8	60.60	58.60	66	40	30	44
20 T10 25 6F A  8	63.80	61.80	66	40	30	46
22 T10 25 6F A  8	70.15	68.15	75	40	30	52
24 T10 25 6F A  8	76.55	74.55	83	40	30	58
25 T10 25 6F A  8	79.70	77.70	83	40	30	60
26 T10 25 6F A  8	82.90	80.90	87	40	30	60
27 T10 25 6F A  8	86.10	84.10	91	40	30	60
28 T10 25 6F A  8	89.25	87.25	93	40	30	60
30 T10 25 6F A  8	95.65	93.65	97	40	30	60
32 T10 25 6F A 10	102.00	100.00	106	40	30	65
36 T10 25 6F A 10	114.75	112.75	119	40	30	70
40 T10 25 6F A 10	127.45	125.45	131	40	30	80
44 T10 25 6  A 10	140.20	138.20	-	40	30	88
48 T10 25 6  A 16	152.95	150.95	-	40	30	95
60 T10 25 6  A 16	191.10	189.10	-	40	30	110
For 32mm Belt Widths
example of part number structure   18-T10-32-6F-A-10 # 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 T10 32 6F A 10	57.45	55.45	60	47	37	40
19 T10 32 6F A 10	60.60	58.60	66	47	37	44
20 T10 32 6F A 12	63.80	61.80	66	47	37	46
22 T10 32 6F A 12	70.15	68.15	75	47	37	52
24 T10 32 6F A 12	76.65	74.55	83	47	37	58
25 T10 32 6F A 12	79.70	77.70	83	47	37	60
26 T10 32 6F A 12	82.90	80.90	87	47	37	60
27 T10 32 6F A 12	86.10	84.10	91	47	37	60
28 T10 32 6F A 12	89.25	87.25	93	47	37	60
30 T10 32 6F A 12	95.65	93.65	97	47	37	60
32 T10 32 6F A 12	102.00	100.00	106	47	37	65
36 T10 32 6F A 16	114.75	112.75	119	47	37	70
40 T10 32 6F A 16	127.45	125.45	131	47	37	80
44 T10 32 6  A 16	140.20	138.20	-	47	37	88
48 T10 32 6  A 16	152.95	150.95	-	47	37	95
60 T10 32 6  A 16	191.10	189.10	-	47	37	110
For 50mm Belt Widths
example of part number structure   18-T10-50-6F-A-10 # 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 T10 50 6F A 10	57.45	55.45	60	66	56	40
19 T10 50 6F A 10	60.60	58.60	66	66	56	44
20 T10 50 6F A 12	63.80	61.80	66	66	56	46
22 T10 50 6F A 12	70.15	68.15	75	66	56	52
24 T10 50 6F A 12	76.65	74.55	83	66	56	58
25 T10 50 6F A 12	79.70	77.70	83	66	56	60
26 T10 50 6F A 12	82.90	80.90	87	66	56	60
27 T10 50 6F A 12	86.10	84.10	91	66	56	60
28 T10 50 6F A 12	89.25	87.25	93	66	56	60
30 T10 50 6F A 12	95.65	93.65	97	66	56	60
32 T10 50 6F A 12	102.00	100.00	106	66	56	65
36 T10 50 6F A 16	114.75	112.75	119	66	56	70
40 T10 50 6F A 16	127.45	125.45	131	66	56	80
44 T10 50 6  A 16	140.20	138.20	-	66	56	88
48 T10 50 6  A 16	152.95	150.95	-	66	56	95
60 T10 50 6  A 16	191.10	189.10	-	66	56	110

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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.