AT10 Pulleys | McMaster-Carr

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For Maximum Belt Width

16 mm

25 mm

50 mm

Number of Teeth

Shaft Diameter

10 mm

12 mm

16 mm

System of Measurement

Belt Trade Size

Pitch

Material

Inside Width

Hub Diameter

Width

Teeth Shape

Bore Type

Outside Width

Mount Type

Number of Flanges

Overall Width

RoHS

DFARS Specialty Metals

Exempt

Export Control Classification Number (ECCN)

REACH

Fabrication

Teeth Location

Outer Circle

Belt Trade Number

57 Products

About Sizing Belts

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.

Press-Fit Mount

With Two Flanges

Without Flanges

With Two Flanges

Without Flanges

For 16 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
60	18	10	10	Plain	18	22	31	57.3	2	Machined	Aluminum	40	00000000	000000
66	20	10	12	Plain	18	22	31	63.7	2	Machined	Aluminum	46	00000000	00000
75	22	10	12	Plain	18	22	31	70	2	Machined	Aluminum	50	00000000	00000
83	24	10	12	Plain	18	22	31	76.4	2	Machined	Aluminum	58	00000000	00000
83	25	10	12	Plain	18	22	31	79.6	2	Machined	Aluminum	60	00000000	00000
91	27	10	12	Plain	18	22	31	86	2	Machined	Aluminum	60	00000000	00000
97	30	10	12	Plain	18	22	31	95.5	2	Machined	Aluminum	60	00000000	00000
106	32	10	12	Plain	18	22	31	101.9	2	Machined	Aluminum	65	00000000	000000
119	36	10	16	Plain	18	22	31	114.6	2	Machined	Aluminum	70	00000000	000000
131	40	10	16	Plain	18	22	31	127.3	2	Machined	Aluminum	80	00000000	000000
138.2	44	10	16	Plain	18	22	31	140.1	2	Machined	Aluminum	90	00000000	000000
151	48	10	16	Plain	__	22	31	152.8	__	Machined	Aluminum	95	00000000	000000
189.1	60	10	16	Plain	__	22	31	191	__	Machined	Aluminum	110	00000000	000000
For 25 mm Max. Belt Wd.
60.3	18	10	10	Plain	28	32	42	57.29	2	Machined	Aluminum	40	0000000	00000
66.7	20	10	12	Plain	28	32	42	63.65	2	Machined	Aluminum	46	0000000	00000
75	22	10	12	Plain	28	32	42	70.03	2	Machined	Aluminum	50	0000000	00000
83	24	10	12	Plain	28	32	42	76.39	2	Machined	Aluminum	58	0000000	00000
83	25	10	12	Plain	28	32	42	79.58	2	Machined	Aluminum	60	0000000	00000
90.6	27	10	12	Plain	28	32	42	85.95	2	Machined	Aluminum	60	0000000	00000
97	30	10	12	Plain	28	32	42	95.49	2	Machined	Aluminum	60	0000000	00000
106	32	10	12	Plain	28	32	42	101.86	2	Machined	Aluminum	65	0000000	00000
118.26	36	10	16	Plain	28	32	42	114.59	2	Machined	Aluminum	70	0000000	000000
131	40	10	16	Plain	28	32	42	127.32	2	Machined	Aluminum	80	0000000	000000
144	44	10	16	Plain	28	32	42	140.05	2	Machined	Aluminum	90	0000000	000000
150.95	48	10	16	Plain	__	32	42	152.78	__	Machined	Aluminum	95	0000000	000000
189.1	60	10	16	Plain	__	32	42	190.98	__	Machined	Aluminum	110	0000000	000000
For 50 mm Max. Belt Wd.
60	18	10	10	Plain	53	57	66	57.3	2	Machined	Aluminum	40	00000000	00000
66	20	10	12	Plain	53	57	66	63.7	2	Machined	Aluminum	46	00000000	000000
75	22	10	12	Plain	53	57	66	70	2	Machined	Aluminum	50	00000000	000000
83	24	10	12	Plain	53	57	66	76.4	2	Machined	Aluminum	58	00000000	000000
83	25	10	12	Plain	53	57	66	79.6	2	Machined	Aluminum	60	00000000	000000
91	27	10	12	Plain	53	57	66	86	2	Machined	Aluminum	60	00000000	000000
97	30	10	12	Plain	53	57	66	95.5	2	Machined	Aluminum	60	00000000	000000
106	32	10	12	Plain	53	57	66	101.9	2	Machined	Aluminum	65	00000000	000000
119	36	10	16	Plain	53	57	66	114.6	2	Machined	Aluminum	70	00000000	000000
131	40	10	16	Plain	53	57	66	127.3	2	Machined	Aluminum	80	00000000	000000
138.2	44	10	16	Plain	53	57	66	140.1	2	Machined	Aluminum	90	00000000	000000
151	48	10	16	Plain	__	57	66	152.8	__	Machined	Aluminum	95	00000000	000000
189.1	60	10	16	Plain	__	57	66	191	__	Machined	Aluminum	110	00000000	000000

AT Series Dust-Free Timing Belts

Made of urethane, these belts have excellent abrasion resistance, so they don’t create dust while they run. They’re reinforced with steel for very high strength, low stretch, and excellent shock resistance. All have trapezoidal teeth.

16 mm Wd.
Belt Trade Number	Outer Circle, mm	Number of Teeth	Pitch, mm	Material	Color	Temperature Range, °F		Each
16AT10/500	500	50	10	Urethane	Gray	-20° to 175°	0000000	000000
16AT10/560	560	56	10	Urethane	Gray	-20° to 175°	0000000	00000
16AT10/660	660	66	10	Urethane	Gray	-20° to 175°	0000000	00000
16AT10/700	700	70	10	Urethane	Gray	-20° to 175°	0000000	00000
16AT10/780	780	78	10	Urethane	Gray	-20° to 175°	0000000	00000
16AT10/800	800	80	10	Urethane	Gray	-20° to 175°	0000000	00000
16AT10/840	840	84	10	Urethane	Gray	-20° to 175°	0000000	00000
16AT10/890	890	89	10	Urethane	Gray	-20° to 175°	0000000	00000
25 mm Wd.
25AT10/500	500	50	10	Urethane	Gray	-20° to 175°	0000000	00000
25AT10/560	560	56	10	Urethane	Gray	-20° to 175°	0000000	00000
25AT10/660	660	66	10	Urethane	Gray	-20° to 175°	0000000	00000
25AT10/700	700	70	10	Urethane	Gray	-20° to 175°	0000000	00000
25AT10/780	780	78	10	Urethane	Gray	-20° to 175°	0000000	00000
25AT10/800	800	80	10	Urethane	Gray	-20° to 175°	0000000	00000
25AT10/840	840	84	10	Urethane	Gray	-20° to 175°	0000000	00000
25AT10/890	890	89	10	Urethane	Gray	-20° to 175°	0000000	00000

AT Series Dust-Free Cut-to-Length Timing Belts

Urethane has excellent abrasion resistance, so these belts don’t create dust while they run. They have steel reinforcement, which has very high strength, low stretch, and excellent shock resistance.

Secure belt ends to a flat surface with end plates.

Timing Belts							End Plates
Belt Trade Number	Pitch, mm	Material	Color	Temperature Range, °F		Per Ft.		Each
25 mm Wd.
25AT10	10	Urethane	White	32° to 176°	000000	000000	0000000	000000