H3M Timing Belts | McMaster-Carr

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30 Products

High-Torque HTD Timing Belts

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

Neoprene—Durable and weather resistant, but lose elasticity if exposed to oil and fuel. These belts are reinforced, so they're strong enough to transmit power without stretching. Plus, nylon-coated teeth minimize friction and protect the surface from wear.

	Pitch, mm	Reinforcement Material	Tooth Finish	Temp. Range, ° F		Each
Neoprene







	H3M Trade Size

	6	111	37	3	Fiberglass, Aramid	Nylon Coated	-20 to 212	00000000	000000


	6	129	43	3	Fiberglass, Aramid	Nylon Coated	-20 to 212	00000000	00000
	6	159	53	3	Fiberglass, Aramid	Nylon Coated	-20 to 212	00000000	00000
	6	183	61	3	Fiberglass, Aramid	Nylon Coated	-20 to 212	00000000	00000
	6	276	92	3	Fiberglass, Aramid	Nylon Coated	-20 to 212	00000000	00000
	9	111	37	3	Fiberglass, Aramid	Nylon Coated	-20 to 212	00000000	00000
	9	129	43	3	Fiberglass, Aramid	Nylon Coated	-20 to 212	00000000	00000
	9	159	53	3	Fiberglass, Aramid	Nylon Coated	-20 to 212	00000000	00000
	9	183	61	3	Fiberglass, Aramid	Nylon Coated	-20 to 212	00000000	00000
	9	276	92	3	Fiberglass, Aramid	Nylon Coated	-20 to 212	00000000	00000
	15	111	37	3	Fiberglass, Aramid	Nylon Coated	-20 to 212	00000000	00000


	15	159	53	3	Fiberglass, Aramid	Nylon Coated	-20 to 212	00000000	00000
	15	183	61	3	Fiberglass, Aramid	Nylon Coated	-20 to 212	00000000	00000
	15	276	92	3	Fiberglass, Aramid	Nylon Coated	-20 to 212	00000000	00000

High-Torque HTD Timing Belt Pulleys


Finished 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.

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.

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

	Bore Type	For Shaft Dia.	OD, mm	No. of Flanges	Hub Type		Each
For H3M Trade Size







	Corrosion-Resistant Aluminum

	6	3	16	Finished	3/16"	18.03	2	Standard	00000000	000000


	6	3	18	Finished	1/4"	20.06	2	Standard	00000000	00000
	6	3	20	Finished	1/4"	22.73	2	Standard	00000000	00000
	6	3	24	Finished	1/4"	26.04	2	Standard	00000000	00000
	6	3	28	Finished	1/4"	29.79	2	Standard	00000000	00000
	6	3	32	Finished	1/4"	33.6	2	Standard	00000000	00000
	6	3	36	Finished	1/4"	37.41	2	Standard	00000000	00000
	6	3	40	Finished	1/4"	41.28	2	Standard	00000000	00000
	9	3	16	Finished	3/16"	18.03	2	Standard	00000000	00000
	9	3	18	Finished	1/4"	20.07	2	Standard	00000000	00000
	9	3	20	Finished	1/4"	22.73	2	Standard	00000000	00000


	9	3	24	Finished	1/4"	26.04	2	Standard	00000000	00000
	9	3	28	Finished	1/4"	29.79	2	Standard	00000000	00000
	9	3	32	Finished	1/4"	33.6	2	Standard	00000000	00000
	9	3	36	Finished	1/4"	37.41	2	Standard	00000000	00000
	9	3	40	Finished	1/4"	41.28	2	Standard	00000000	00000