8 mm Shaft Diameter Chain and Belt Pulleys

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70 Products

XL Series Corrosion-Resistant Timing Belt Pulleys

With Hub—Two Flanges

Without Hub—Two Flanges

Pulleys are anodized aluminum, which is more corrosion resistant than steel. They are XL series (extra light) and have trapezoidal teeth. Select a pulley with a maximum belt width that’s the same or larger than your timing belt width.

For tight spots, choose a pulley without a hub.

For technical drawings and 3-D models, click on a part number.

Metric—Press-Fit Mount with Set Screw

Without Hub—Two Flanges

For 9.5 mm Max. Belt Wd.
OD, mm	Number of Teeth	Pitch, mm	For Shaft Dia., mm	Bore Type	Inside Wd., mm	Outside Wd., mm	Overall Wd., mm	Pitch Dia., mm	Fabrication	Material	Hub Dia., mm		Each
With Hub—Two Flanges
28	14	5.080	8	Finished	11.2	14.2	20.6	22.6	Machined	Anodized Aluminum	14	00000000	000000
30	15	5.080	8	Finished	11.2	14.2	20.6	24.3	Machined	Anodized Aluminum	16	00000000	00000
32	16	5.080	8	Finished	11.2	14.2	20.6	25.9	Machined	Anodized Aluminum	17	00000000	00000
35	18	5.080	8	Finished	11.2	14.2	20.6	29.1	Machined	Anodized Aluminum	21	00000000	00000
38	20	5.080	8	Finished	11.2	14.2	22	32.3	Machined	Anodized Aluminum	24	00000000	00000
41	22	5.080	8	Finished	11.2	14.2	22	35.6	Machined	Anodized Aluminum	25	00000000	00000
44	24	5.080	8	Finished	11.2	14.2	22	38.8	Machined	Anodized Aluminum	27	00000000	00000
51	28	5.080	8	Finished	11.2	14.2	23.1	45.4	Machined	Anodized Aluminum	30	00000000	00000
57	32	5.080	8	Finished	11.2	14.2	23.1	51.7	Machined	Anodized Aluminum	37	00000000	00000
Without Hub—Two Flanges
28	14	5.080	8	Finished	10.9	14.3	14.3	22.6	Machined	Anodized Aluminum	__	00000000	00000
30	15	5.080	8	Finished	10.9	14.3	14.3	24.3	Machined	Anodized Aluminum	__	00000000	00000
32	16	5.080	8	Finished	10.9	14.3	14.3	25.9	Machined	Anodized Aluminum	__	00000000	00000
35	18	5.080	8	Finished	10.9	14.3	14.3	29.1	Machined	Anodized Aluminum	__	00000000	00000
38	20	5.080	8	Finished	10.9	14.3	14.3	32.3	Machined	Anodized Aluminum	__	00000000	00000
41	22	5.080	8	Finished	10.9	14.3	14.3	35.6	Machined	Anodized Aluminum	__	00000000	00000
44	24	5.080	8	Finished	10.9	14.3	14.3	38.8	Machined	Anodized Aluminum	__	00000000	00000
51	28	5.080	8	Finished	10.9	14.3	14.3	45.3	Machined	Anodized Aluminum	__	00000000	00000
54	30	5.080	8	Finished	10.9	14.3	14.3	48.5	Machined	Anodized Aluminum	__	00000000	00000

XL Series Lightweight Timing Belt Pulleys

Acetal and aluminum construction makes these pulleys useful in weight-sensitive applications. All are XL series (extra light) and have trapezoidal teeth. Select a pulley with a maximum belt width that’s the same or larger than your timing belt width.

For technical drawings and 3-D models, click on a part number.

Press-Fit Mount with Set Screw

With Two Flanges

												Hub
OD	Number of Teeth	Pitch	For Shaft Dia.	Bore Type	Inside Wd.	Outside Wd.	Overall Wd.	Pitch Dia.	Number of Flanges	Fabrication	Material	Material	Dia.		Each
For 3/8" Max. Belt Wd.
Metric
28mm	14	5.000mm	8mm	Finished	13mm	16mm	22mm	22.63mm	2	Molded	Acetal	Aluminum	19mm	0000000	000000
30mm	15	5.000mm	8mm	Finished	13mm	16mm	22mm	24.26mm	2	Molded	Acetal	Aluminum	19mm	0000000	00000
32mm	16	5.000mm	8mm	Finished	13mm	16mm	22mm	25.88mm	2	Molded	Acetal	Aluminum	19mm	0000000	00000
35mm	18	5.000mm	8mm	Finished	13mm	16mm	22mm	29.11mm	2	Molded	Acetal	Aluminum	19mm	0000000	00000
38mm	20	5.000mm	8mm	Finished	13mm	16mm	22mm	32.33mm	2	Molded	Acetal	Aluminum	22mm	0000000	00000
40mm	21	5.000mm	8mm	Finished	13mm	16mm	22mm	33.96mm	2	Molded	Acetal	Aluminum	22mm	0000000	00000
41mm	22	5.000mm	8mm	Finished	13mm	16mm	22mm	35.59mm	2	Molded	Acetal	Aluminum	22mm	0000000	00000
44mm	24	5.000mm	8mm	Finished	13mm	16mm	22mm	38.81mm	2	Molded	Acetal	Aluminum	22mm	0000000	00000
48mm	26	5.000mm	8mm	Finished	13mm	16mm	22mm	42.04mm	2	Molded	Acetal	Aluminum	22mm	0000000	00000
51mm	28	5.000mm	8mm	Finished	13mm	16mm	22mm	45.29mm	2	Molded	Acetal	Aluminum	22mm	0000000	00000

AT Series Timing Belt Pulleys

Made of aluminum, these pulleys have good corrosion resistance. The teeth match up with the grooves along the inside diameter of a timing belt in order to move components forward or backward. Select a pulley with a maximum belt width that’s the same or larger than your timing belt width. Choose pulleys that have a diameter to match your shaft.

For technical drawings and 3-D models, click on a part number.

Press-Fit Mount

With Two Flanges

Without Flanges

With Two Flanges

Without Flanges

For 10 mm Max. Belt Wd.
OD, mm	Number of Teeth	Pitch, mm	For Shaft Dia., mm	Bore Type	Inside Wd., mm	Outside Wd., mm	Overall Wd., mm	Pitch Dia., mm	Number of Flanges	Fabrication	Material	Hub Dia., mm		Each
51	30	5	8	Plain	10	15	21	47.95	2	Machined	Aluminum	34	0000000	000000
70	42	5	8	Plain	10	15	21	67	2	Machined	Aluminum	40	0000000	00000
94.25	60	5	8	Plain	__	15	21	95.65	__	Machined	Aluminum	65	0000000	00000
For 16 mm Max. Belt Wd.
48	27	5	8	Plain	16	21	27	43.2	2	Machined	Aluminum	30	0000000	00000
48	28	5	8	Plain	16	21	27	44.75	2	Machined	Aluminum	32	0000000	00000
51	30	5	8	Plain	16	21	27	47.95	2	Machined	Aluminum	34	0000000	00000
54	32	5	8	Plain	16	21	27	51.1	2	Machined	Aluminum	38	0000000	00000
64	36	5	8	Plain	16	21	27	57.45	2	Machined	Aluminum	38	0000000	00000
66	40	5	8	Plain	16	21	27	63.85	2	Machined	Aluminum	40	0000000	00000
68.8	44	5	8	Plain	__	21	27	70.2	__	Machined	Aluminum	45	0000000	00000
70	42	5	8	Plain	16	21	27	67	2	Machined	Aluminum	40	0000000	00000
94.25	60	5	8	Plain	__	21	27	95.65	__	Machined	Aluminum	65	0000000	000000
For 25 mm Max. Belt Wd.
48	27	5	8	Plain	25	30	36	43.2	2	Machined	Aluminum	30	0000000	00000
51	30	5	8	Plain	25	30	36	47.95	2	Machined	Aluminum	34	0000000	00000
54	32	5	8	Plain	25	30	36	51.1	2	Machined	Aluminum	38	0000000	00000
66.5	40	5	8	Plain	25	30	36	63.85	2	Machined	Aluminum	40	0000000	00000
75.15	48	5	8	Plain	__	30	36	76.55	__	Machined	Aluminum	50	0000000	000000

MXL Series Corrosion-Resistant Timing Belt Pulleys

Anodized aluminum has good corrosion resistance. Pulleys are MXL series (miniature extra light) and have trapezoidal teeth. The teeth match up with the grooves along the inside diameter of a timing belt in order to move components forward or backward. Select a pulley with a maximum belt width that’s the same or larger than your timing belt width.

For technical drawings and 3-D models, click on a part number.

Press-Fit Mount with Set Screw

Without Flanges

For 6 mm Max. Belt Wd.
OD	Number of Teeth	Pitch	For Shaft Dia.	Bore Type	Outside Wd.	Overall Wd.	Pitch Dia.	Fabrication	Material	Hub Dia.		Each
51.2mm	80	2.030mm	8mm	Finished	9.5mm	19.1mm	51.7mm	Machined	Anodized Aluminum	38.1mm	00000000	000000
57.7mm	90	2.030mm	8mm	Finished	9.5mm	19.1mm	58.2mm	Machined	Anodized Aluminum	38.1mm	00000000	00000
64.2mm	100	2.030mm	8mm	Finished	9.5mm	19.1mm	64.7mm	Machined	Anodized Aluminum	38.1mm	00000000	00000
For 9 mm Max. Belt Wd.
51.2mm	80	2.030mm	8mm	Finished	12.7mm	22.2mm	51.7mm	Machined	Anodized Aluminum	38.1mm	00000000	00000
57.7mm	90	2.030mm	8mm	Finished	12.7mm	22.2mm	58.2mm	Machined	Anodized Aluminum	38.1mm	00000000	00000
64.2mm	100	2.030mm	8mm	Finished	12.7mm	22.2mm	64.7mm	Machined	Anodized Aluminum	38.1mm	00000000	00000

MXL Series Lightweight Timing Belt Pulleys

Made from polycarbonate, these pulleys are useful in applications with weight constraints. All are MXL series (miniature extra light) and have trapezoidal teeth. The teeth match up with the grooves along the inside diameter of a timing belt in order to move components forward or backward. Select a pulley with a maximum belt width that’s the same or larger than your timing belt width.

For technical drawings and 3-D models, click on a part number.

Press-Fit Mount

With Hub and Two Flanges (18 Teeth or More)

With Hub and One Flange (18 Teeth or More)

With One Flange

With Two Flanges

With Hub and Two Flanges (18 Teeth or More)

With Hub and One Flange (18 Teeth or More)

With One Flange

With Two Flanges

1 Flange
OD	Number of Teeth	Pitch	For Shaft Dia.	Bore Type	Inside Wd.	Outside Wd.	Overall Wd.	Pitch Dia.	Fabrication	Material	Hub Dia.		Each
For 6 mm Max. Belt Wd.
16mm	18	2.030mm	8mm	Finished	8mm	9.6mm	9.6mm	11.6mm	Molded	Polycarbonate	__	0000000	00000
17mm	20	2.030mm	8mm	Finished	8mm	9.6mm	9.6mm	12.9mm	Molded	Polycarbonate	__	0000000	00000
24mm	30	2.030mm	8mm	Finished	8mm	11.2mm	17.5mm	19.4mm	Molded	Polycarbonate	17.5mm	0000000	00000
25mm	32	2.030mm	8mm	Finished	8mm	11.2mm	11.2mm	20.7mm	Molded	Polycarbonate	__	0000000	00000
69mm	100	2.030mm	8mm	Finished	8mm	11.2mm	17.5mm	64.7mm	Molded	Polycarbonate	17.5mm	0000000	00000
88mm	130	2.030mm	8mm	Finished	8mm	11.2mm	17.5mm	84.1mm	Molded	Polycarbonate	17.5mm	0000000	00000
2 Flanges
For 6 mm Max. Belt Wd.
16mm	18	2.030mm	8mm	Finished	8mm	11.2mm	11.2mm	11.6mm	Molded	Polycarbonate	__	0000000	00000
17mm	20	2.030mm	8mm	Finished	8mm	11.2mm	11.2mm	12.9mm	Molded	Polycarbonate	__	0000000	00000
21mm	26	2.030mm	8mm	Finished	8mm	11.2mm	17.5mm	16.8mm	Molded	Polycarbonate	17.5mm	0000000	00000
24mm	30	2.030mm	8mm	Finished	8mm	11.2mm	17.5mm	19.4mm	Molded	Polycarbonate	17.5mm	0000000	00000
28mm	36	2.030mm	8mm	Finished	8mm	11.2mm	11.2mm	23.3mm	Molded	Polycarbonate	__	0000000	00000
28mm	36	2.030mm	8mm	Finished	8mm	11.2mm	17.5mm	23.3mm	Molded	Polycarbonate	17.5mm	0000000	00000
30mm	40	2.030mm	8mm	Finished	8mm	11.2mm	11.2mm	25.9mm	Molded	Polycarbonate	__	0000000	00000
30mm	40	2.030mm	8mm	Finished	8mm	11.2mm	17.5mm	25.9mm	Molded	Polycarbonate	17.5mm	0000000	00000
43mm	60	2.030mm	8mm	Finished	8mm	11.2mm	17.5mm	38.8mm	Molded	Polycarbonate	17.5mm	0000000	00000
46mm	65	2.030mm	8mm	Finished	8mm	11.2mm	17.5mm	42mm	Molded	Polycarbonate	17.5mm	0000000	00000
63mm	90	2.030mm	8mm	Finished	8mm	11.2mm	17.5mm	58.2mm	Molded	Polycarbonate	17.5mm	0000000	00000
82mm	120	2.030mm	8mm	Finished	8mm	11.2mm	17.5mm	77.6mm	Molded	Polycarbonate	17.5mm	0000000	00000
88mm	130	2.030mm	8mm	Finished	8mm	11.2mm	17.5mm	84.1mm	Molded	Polycarbonate	17.5mm	0000000	00000