5 mm Gears | McMaster-Carr

Filter by

System of Measurement

Inch

Metric

For Maximum Belt Width

Number of Teeth

Pitch

Belt Trade Size

Tooth Profile

Shaft Diameter

Material

Bore Type

Inside Width

Width

Shaft Type

Number of Flanges

Overall Width

Outside Width

Hub Type

Pulley Type

Belt Type

REACH

RoHS

Export Control Classification Number (ECCN)

EAR99

DFARS Specialty Metals

Exempt

Forward

How can we improve?

153 Products

Tooth Profile

Trapezoidal

Keep drive systems in sync with the original tooth profile

91 products

Curved (HTD)

Transmit about twice as much torque as trapezoidal teeth

62 products

Performance

High Torque

Snugger fit than trapezoidal teeth to transmit more torque

62 products

Easy Install

Slide on and off a bushing without removing the bushing from the shaft

39 products

Timing Belt Pulleys


Plain Bore

Keep your drive system in sync. Trapezoidal teeth mesh with matching belts to synchronize motion. With the original tooth profile, these pulleys handle enough torque for most applications. If you need high torque or precise starts and stops, consider curved tooth profiles, such as GT and HTD pulleys.

Corrosion-Resistant Aluminum—Won't rust in wet environments and one-third the weight of steel and iron. However, aluminum pulleys are not as strong as iron and steel.

Plain Bore—Do it your way—machine the bore to your exact shaft size or add a set screw or keyway.

	For Max. Belt Wd., mm	Pitch, mm	No. of Teeth	Bore Type	For Shaft Dia., mm	Pitch Dia., mm	No. of Flanges	Hub Type		Each
For T5 Trade Size







				Corrosion-Resistant Aluminum

				10	5	10	Plain	—	16.1	2	Standard	000000	000000


				10	5	12	Plain	—	19.3	2	Standard	0000000	00000
				10	5	14	Plain	—	22.5	2	Standard	0000000	00000
				10	5	15	Plain	—	24.1	2	Standard	0000000	00000
				10	5	16	Plain	—	25.6	2	Standard	0000000	00000
				10	5	18	Plain	—	28.8	2	Standard	0000000	00000
				10	5	19	Plain	—	30.4	2	Standard	0000000	00000
				10	5	20	Plain	—	32	2	Standard	0000000	00000
				10	5	22	Plain	—	35.3	2	Standard	0000000	00000
				10	5	24	Plain	—	38.4	2	Standard	0000000	00000
				10	5	25	Plain	—	40	2	Standard	000000	00000


				10	5	26	Plain	—	41.6	2	Standard	0000000	00000
				10	5	27	Plain	—	43.2	2	Standard	0000000	00000
				10	5	30	Plain	—	47.8	2	Standard	0000000	00000
				10	5	32	Plain	—	50.9	2	Standard	0000000	00000
				10	5	36	Plain	—	57.3	2	Standard	0000000	00000
				10	5	40	Plain	—	63.7	2	Standard	0000000	00000
				10	5	48	Plain	—	76.4	—	Standard	0000000	00000
				10	5	60	Plain	—	95.5	—	Standard	0000000	00000
				16	5	10	Plain	—	16.1	2	Standard	000000	00000
				16	5	12	Plain	—	19.3	2	Standard	0000000	00000


				16	5	14	Plain	—	22.5	2	Standard	0000000	00000
				16	5	15	Plain	—	24.1	2	Standard	0000000	00000
				16	5	16	Plain	—	25.6	2	Standard	0000000	00000
				16	5	18	Plain	—	28.8	2	Standard	0000000	00000
				16	5	19	Plain	—	30.4	2	Standard	0000000	00000
				16	5	20	Plain	—	32	2	Standard	0000000	00000
				16	5	22	Plain	—	35.3	2	Standard	0000000	00000
				16	5	24	Plain	—	38.4	2	Standard	0000000	00000
				16	5	25	Plain	—	40	2	Standard	000000	00000
				16	5	26	Plain	—	41.6	2	Standard	0000000	00000


				16	5	27	Plain	—	43.2	2	Standard	0000000	00000
				16	5	30	Plain	—	48	2	Standard	0000000	00000
				16	5	32	Plain	—	51.1	2	Standard	0000000	00000
				16	5	36	Plain	—	57.5	2	Standard	0000000	00000
				16	5	40	Plain	—	63.9	2	Standard	0000000	00000
				16	5	48	Plain	—	76.6	—	Standard	0000000	00000
				16	5	60	Plain	—	95.7	—	Standard	0000000	00000
				25	5	10	Plain	—	16.1	2	Standard	000000	00000
				25	5	14	Plain	—	22.5	2	Standard	0000000	00000
				25	5	15	Plain	—	24.1	2	Standard	0000000	00000


				25	5	16	Plain	—	25.6	2	Standard	0000000	00000
				25	5	18	Plain	—	28.8	2	Standard	0000000	00000
				25	5	20	Plain	—	32	2	Standard	0000000	00000
				25	5	22	Plain	—	35.3	2	Standard	0000000	00000
25				5	24	Plain	—	38.4	2	Standard	0000000	00000
25	5			25	Plain	—	40	2	Standard	000000	00000
25	5			26	Plain	—	41.6	2	Standard	0000000	00000
25	5			27	Plain	—	43.2	2	Standard	0000000	00000
25	5			30	Plain	—	48	2	Standard	0000000	00000
25	5	32		Plain	—	51.1	2	Standard	0000000	00000
25	5	36	Plain	—	57.5	2	Standard	0000000	00000
25	5	40	Plain	—	63.9	2	Standard	0000000	00000
25	5	48	Plain	—	76.6	—	Standard	0000000	00000
25	5	60	Plain	—	95.7	—	Standard	0000000	00000

For AT5 Trade Size







				Corrosion-Resistant Aluminum

				10	5	12	Plain	—	19.3	2	Standard	0000000	00000


				10	5	15	Plain	—	24.1	2	Standard	0000000	00000
				10	5	20	Plain	—	32	2	Standard	0000000	00000
				10	5	22	Plain	—	35.3	2	Standard	0000000	00000
				10	5	24	Plain	—	38.4	2	Standard	0000000	00000
				10	5	27	Plain	—	43.2	2	Standard	0000000	00000
				10	5	30	Plain	8	48	2	Standard	0000000	00000
				10	5	42	Plain	8	67	2	Standard	0000000	00000
				10	5	60	Plain	8	95.7	—	Standard	0000000	00000
				16	5	12	Plain	—	19.3	2	Standard	0000000	00000
				16	5	18	Plain	—	28.8	2	Standard	0000000	00000


				16	5	20	Plain	—	32	2	Standard	0000000	00000
				16	5	22	Plain	—	35.3	2	Standard	0000000	00000
				16	5	24	Plain	—	38.4	2	Standard	0000000	00000
				16	5	25	Plain	—	40	2	Standard	0000000	00000
				16	5	26	Plain	—	41.6	2	Standard	0000000	00000
				16	5	27	Plain	8	43.2	2	Standard	0000000	00000
				16	5	28	Plain	8	44.8	2	Standard	0000000	00000
				16	5	30	Plain	8	48	2	Standard	0000000	00000
				16	5	32	Plain	8	51.1	2	Standard	0000000	00000
				16	5	36	Plain	8	57.5	2	Standard	0000000	00000


				16	5	40	Plain	8	63.9	2	Standard	0000000	00000
				16	5	42	Plain	8	67	2	Standard	0000000	00000
				16	5	44	Plain	8	70.2	—	Standard	0000000	00000
				16	5	60	Plain	8	95.7	—	Standard	0000000	000000
				25	5	16	Plain	—	25.6	2	Standard	0000000	00000
				25	5	20	Plain	—	32	2	Standard	0000000	00000
				25	5	22	Plain	—	35.3	2	Standard	0000000	00000
				25	5	24	Plain	—	38.4	2	Standard	0000000	00000
				25	5	25	Plain	—	40	2	Standard	0000000	00000
				25	5	26	Plain	—	41.6	2	Standard	0000000	00000


				25	5	27	Plain	8	43.2	2	Standard	0000000	00000
				25	5	30	Plain	8	48	2	Standard	0000000	00000
				25	5	32	Plain	8	51.1	2	Standard	0000000	00000
				25	5	40	Plain	8	63.9	2	Standard	0000000	00000
				25	5	48	Plain	8	76.6	—	Standard	0000000	000000

High-Torque HTD Timing Belt Pulleys for Hex Shafts

No need for set screws—these pulleys have bores with six walls that engage with the shaft to transfer torque. They're a good choice when your setup needs to come apart frequently since there aren't extra mounting steps such as press fitting or installing bushings. These pulleys have curved HTD teeth that interlock with the matching belt better than trapezoidal teeth, so they transmit about twice the torque. All are compatible with Gates PowerGrip HTD, Omega HP, and Carlisle RPP series.

Corrosion-Resistant Aluminum—Won't rust in wet environments and one-third the weight of steel and iron. However, aluminum pulleys are not as strong as iron and steel.

	Bore Type	Pitch Dia., mm	No. of Flanges	Hub Type		Each
For H5M Trade Size







	Corrosion-Resistant Aluminum

	9	5	18	Finished	28.7	2	Standard	0000000	000000


	9	5	24	Finished	38.2	2	Standard	0000000	00000
	9	5	30	Finished	47.8	2	Standard	0000000	00000
	9	5	36	Finished	57.3	2	Standard	0000000	00000
	15	5	15	Finished	23.9	2	Standard	0000000	00000
	15	5	18	Finished	28.7	2	Standard	0000000	00000
	15	5	24	Finished	38.2	2	Standard	0000000	00000
	15	5	30	Finished	47.8	2	Standard	0000000	00000
	15	5	36	Finished	57.3	2	Standard	0000000	00000

High-Torque HTD Timing Belt Pulleys


Finished Bore	Plain Bore

Bushing Bore

Curved teeth engage with the matching belt better than standard trapezoidal teeth, so these pulleys transmit about twice the torque. All are compatible with Gates PowerGrip HTD, Omega HP, and Carlisle RPP series.

Iron—Strong but best for dry environments since moisture will cause them to rust.

Corrosion-Resistant Aluminum—Won't rust in wet environments and one-third the weight of steel and iron. However, aluminum pulleys are not as strong as iron and steel.

Corrosion-Resistant Stainless Steel—Stands up to wet environments and mild chemicals, such as the ammonia in cleaning solutions.

Finished Bore—Mount these pulleys onto the shaft and secure with a set screw—no machining required.

Plain Bore—Do it your way—machine the bore to your exact shaft size or add a set screw or keyway.

Bushing Bore—Quickly swap or service parts in tight spaces—no press-fitting or special tools required. Mount a bushing (sold separately) on your shaft and slide the pulley over it. As you tighten the included set screws, the bushing grips the shaft and draws it into the pulley, creating a final hold that is more secure than with set screws alone.

						For Bushing
	For Max. Belt Wd., mm	Pitch, mm	No. of Teeth	Bore Type	For Shaft Dia.	Type	Trade No.	Pitch Dia., mm	No. of Flanges	Hub Type		Each
For H5M Trade Size







				Iron

				15	5	32	Plain	1/2"	—	—	50.9	2	Standard	0000000	000000


				15	5	34	Plain	1/2"	—	—	54.1	2	Standard	0000000	00000
				15	5	36	Plain	1/2"	—	—	57.3	2	Standard	0000000	00000
				15	5	40	Bushing	—	Quick Disconnect (QD)	JA	63.7	2	—	0000000	00000
				15	5	56	Bushing	—	Quick Disconnect (QD)	SH	89.1	2	—	0000000	00000




						Corrosion-Resistant Aluminum

						9	5	16	Finished	1/4"	—	—	25.5	2	Standard	00000000	00000


						9	5	18	Finished	1/4"	—	—	28.7	2	Standard	00000000	00000
						9	5	20	Finished	1/4"	—	—	31.8	2	Standard	00000000	00000
						9	5	24	Finished	1/4"	—	—	38.2	2	Standard	00000000	00000
						9	5	28	Finished	1/4"	—	—	44.6	2	Standard	00000000	00000
						9	5	32	Finished	1/4"	—	—	50.9	2	Standard	00000000	00000
						9	5	36	Finished	5/16"	—	—	57.3	—	Standard	00000000	00000
						9	5	40	Finished	5/16"	—	—	63.7	—	Standard	00000000	00000




								Corrosion-Resistant Stainless Steel

								15	5	32	Plain	1/2"	—	—	49.8	2	Standard	0000000	000000


								15	5	34	Plain	1/2"	—	—	53	2	Standard	0000000	000000
								15	5	36	Plain	1/2"	—	—	56.2	2	Standard	0000000	000000
								15	5	40	Bushing	—	Quick Disconnect (QD)	JA	62.5	2	—	0000000	000000

Bushings

Quick-Disconnect

Bushing

Bushing
Type	Trade No.	For Shaft Dia.		Each
Quick Disconnect (QD)	JA	1/2"	00000000	000000
Quick Disconnect (QD)	JA	9/16"	00000000	00000
Quick Disconnect (QD)	JA	5/8"	00000000	00000
Quick Disconnect (QD)	JA	3/4"	00000000	00000
Quick Disconnect (QD)	JA	13/16"	00000000	00000
Quick Disconnect (QD)	JA	7/8"	00000000	00000
Quick Disconnect (QD)	JA	15/16"	00000000	00000
Quick Disconnect (QD)	JA	1"	00000000	00000
Quick Disconnect (QD)	JA	1 1/16"	00000000	00000
Quick Disconnect (QD)	JA	1 1/8"	00000000	00000
Quick Disconnect (QD)	JA	1 3/16"	00000000	00000
Quick Disconnect (QD)	JA	1 1/4"	00000000	00000
Quick Disconnect (QD)	SH	1/2"	00000000	00000
Quick Disconnect (QD)	SH	5/8"	00000000	00000
Quick Disconnect (QD)	SH	11/16"	00000000	00000
Quick Disconnect (QD)	SH	3/4"	00000000	00000
Quick Disconnect (QD)	SH	7/8"	00000000	00000
Quick Disconnect (QD)	SH	15/16"	00000000	00000
Quick Disconnect (QD)	SH	1"	00000000	00000
Quick Disconnect (QD)	SH	1 1/16"	00000000	00000
Quick Disconnect (QD)	SH	1 1/8"	00000000	00000
Quick Disconnect (QD)	SH	1 3/16"	00000000	00000
Quick Disconnect (QD)	SH	1 1/4"	00000000	00000
Quick Disconnect (QD)	SH	1 5/16"	00000000	00000
Quick Disconnect (QD)	SH	1 3/8"	00000000	00000
Quick Disconnect (QD)	SH	1 7/16"	00000000	00000
Quick Disconnect (QD)	SH	1 1/2"	00000000	00000
Quick Disconnect (QD)	SH	1 5/8"	00000000	00000
Quick Disconnect (QD)	SH	1 11/16"	00000000	00000
Quick Disconnect (QD)	SH	22 mm	0000000	00000
Quick Disconnect (QD)	SH	24 mm	0000000	00000
Quick Disconnect (QD)	SH	25 mm	0000000	00000
Quick Disconnect (QD)	SH	28 mm	0000000	00000
Quick Disconnect (QD)	SH	30 mm	0000000	00000
Quick Disconnect (QD)	SH	32 mm	0000000	00000
Quick Disconnect (QD)	SH	35 mm	0000000	00000