3/4" Shaft Diameter Chain and Belt Pulleys

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For Maximum Belt Width

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Material

Shaft Mount Type

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Belt Type

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Keyway Depth

DFARS Specialty Metals

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Export Control Classification Number (ECCN)

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107 Products

Heavy Duty V-Belt Drive Pulleys


Solid Body	Spoked Body

						Keyway
	For Shaft Dia.	Pitch Dia. (For Belt Trade Size)	Wd.	Overall Wd.	Groove Dp.	Wd.	Dp.	Material	Body Type	Includes		Each
2" OD



		3/4"	1.7" (5L, B, BX)	7/8"	1 3/8"	17/32"	3/16"	3/32"	Cast Iron	Solid	One Set Screw	00000000	000000


		2.5" OD



				3/4"	1.7" (4L, A, AX), 2.1" (5L, B, BX)	7/8"	1 9/16"	5/8"	3/16"	3/32"	Cast Iron	Solid	One Set Screw	00000000	00000


				2.55" OD



						3/4"	1.8" (4L, A, AX), 2.2" (5L, B, BX)	13/16"	1 1/4"	5/8"	3/16"	3/32"	Cast Iron	Solid	One Set Screw	00000000	00000


						2.85" OD



								3/4"	2.1" (4L, A, AX), 2.5" (5L, B, BX)	13/16"	1 1/4"	5/8"	3/16"	3/32"	Cast Iron	Solid	One Set Screw	00000000	00000


								2.95" OD



										3/4"	2.2" (4L, A, AX), 2.6" (5L, B, BX)	13/16"	1 1/4"	5/8"	3/16"	3/32"	Cast Iron	Solid	One Set Screw	00000000	00000


										3.15" OD



												3/4"	2.4" (4L, A, AX), 2.8" (5L, B, BX)	13/16"	1 1/4"	5/8"	3/16"	3/32"	Cast Iron	Solid	One Set Screw	00000000	00000


												3.35" OD



														3/4"	2.6" (4L, A, AX), 3" (5L, B, BX)	13/16"	1 1/4"	5/8"	3/16"	3/32"	Cast Iron	Solid	One Set Screw	00000000	00000


														3.55" OD



																3/4"	2.8" (4L, A, AX), 3.2" (5L, B, BX)	7/8"	1 5/16"	5/8"	3/16"	3/32"	Cast Iron	Solid	One Set Screw	00000000	00000


																3.75" OD



																		3/4"	3" (4L, A, AX), 3.4" (5L, B, BX)	7/8"	1 5/16"	5/8"	3/16"	3/32"	Cast Iron	Solid	One Set Screw	00000000	00000


																		3.95" OD



	3/4"																		3.2" (4L, A, AX), 3.6" (5L, B, BX)	7/8"	1 5/16"	5/8"	3/16"	3/32"	Cast Iron	Solid	One Set Screw	00000000	00000


	4.15" OD



		3/4"	3.4" (4L, A, AX), 3.8" (5L, B, BX)																	7/8"	1 1/2"	5/8"	3/16"	3/32"	Cast Iron	Solid	One Set Screw	00000000	00000


		4.25" OD



				3/4"																3.5" (4L, A, AX), 3.9" (5L, B, BX)	7/8"	1 5/16"	5/8"	3/16"	3/32"	Cast Iron	Solid	One Set Screw	00000000	00000


				4.45" OD



																				3/4"	3.7" (4L, A, AX), 4.1" (5L, B, BX)	7/8"	1 5/16"	5/8"	3/16"	3/32"	Cast Iron	Solid	One Set Screw	00000000	00000


						4.75" OD



																				3/4"	4" (4L, A, AX), 4.4" (5L, B, BX)	7/8"	1 5/16"	5/8"	3/16"	3/32"	Cast Iron	Spoked	One Set Screw	00000000	00000


								4.95" OD



																				3/4"	4.2" (4L, A, AX), 4.6" (5L, B, BX)	7/8"	1 5/16"	5/8"	3/16"	3/32"	Cast Iron	Spoked	One Set Screw	00000000	00000


										5.15" OD



																				3/4"	4.4" (4L, A, AX), 4.8" (5L, B, BX)	7/8"	1 5/8"	5/8"	3/16"	3/32"	Cast Iron	Spoked	One Set Screw	00000000	00000


																				5.25" OD



																				3/4"	4.5" (4L, A, AX), 4.9" (5L, B, BX)	7/8"	1 5/16"	5/8"	3/16"	3/32"	Cast Iron	Spoked	One Set Screw	00000000	00000


																				5.45" OD



																				3/4"	4.7" (4L, A, AX), 5.1" (5L, B, BX)	7/8"	1 5/16"	5/8"	3/16"	3/32"	Cast Iron	Spoked	One Set Screw	00000000	00000


																				5.75" OD



3/4"																				5" (4L, A, AX), 5.4" (5L, B, BX)	7/8"	1 5/16"	5/8"	3/16"	3/32"	Cast Iron	Spoked	One Set Screw	00000000	00000


5.95" OD



	3/4"																			5.2" (4L, A, AX), 5.6" (5L, B, BX)	7/8"	1 5/16"	5/8"	3/16"	3/32"	Cast Iron	Spoked	One Set Screw	00000000	00000


	6.25" OD



		3/4"																	5.5" (4L, A, AX), 5.9" (5L, B, BX)		7/8"	1 9/32"	5/8"	3/16"	3/32"	Cast Iron	Solid	One Set Screw	00000000	00000


		6.45" OD



																			3/4"		5.7" (4L, A, AX), 6.1" (5L, B, BX)	7/8"	1 5/16"	5/8"	3/16"	3/32"	Cast Iron	Spoked	One Set Screw	00000000	00000


				6.75" OD



																			3/4"		6" (4L, A, AX), 6.4" (5L, B, BX)	7/8"	1 17/32"	5/8"	3/16"	3/32"	Cast Iron	Spoked	One Set Screw	00000000	00000


						6.95" OD



																			3/4"		6.2" (4L, A, AX), 6.6" (5L, B, BX)	7/8"	1 17/32"	5/8"	3/16"	3/32"	Cast Iron	Spoked	One Set Screw	00000000	00000


								7.45" OD



																			3/4"		6.7" (4L, A, AX), 7.1" (5L, B, BX)	7/8"	1 17/32"	5/8"	3/16"	3/32"	Cast Iron	Spoked	One Set Screw	00000000	00000


																			7.75" OD



																			3/4"		7" (4L, A, AX), 7.4" (5L, B, BX)	7/8"	1 17/32"	5/8"	3/16"	3/32"	Cast Iron	Spoked	One Set Screw	00000000	00000


																			8.75" OD



																			3/4"		8" (4L, A, AX), 8.4" (5L, B, BX)	7/8"	1 17/32"	5/8"	3/16"	3/32"	Cast Iron	Spoked	One Set Screw	00000000	00000


																			9.25" OD



																			3/4"		8.5" (4L, A, AX), 8.9" (5L, B, BX)	7/8"	1 17/32"	5/8"	3/16"	3/32"	Cast Iron	Spoked	One Set Screw	00000000	000000


																			9.75" OD



																	3/4"		9" (4L, A, AX), 9.4" (5L, B, BX)		7/8"	1 17/32"	5/8"	3/16"	3/32"	Cast Iron	Spoked	One Set Screw	00000000	00000


																	10.75" OD



																		3/4"	10" (4L, A, AX), 10.4" (5L, B, BX)		7/8"	1 17/32"	5/8"	3/16"	3/32"	Cast Iron	Spoked	One Set Screw	00000000	000000


																		11.75" OD



			3/4"																11" (4L, A, AX), 11.4" (5L, B, BX)		7/8"	1 17/32"	5/8"	3/16"	3/32"	Cast Iron	Spoked	One Set Screw	00000000	000000


			12.75" OD



				3/4"	12" (4L, A, AX), 12.4" (5L, B, BX)															7/8"	1 17/32"	5/8"	3/16"	3/32"	Cast Iron	Spoked	One Set Screw	00000000	000000


				13.75" OD



						3/4"														13" (4L, A, AX), 13.4" (5L, B, BX)	7/8"	1 17/32"	5/8"	3/16"	3/32"	Cast Iron	Spoked	One Set Screw	00000000	000000

Timing Belt Pulleys

Finished Bore

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.

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

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.

						Keyway
	For Max. Belt Wd.	Pitch	No. of Teeth	Bore Type	For Shaft Dia.	Wd.	Dp.	Pitch Dia.	No. of Flanges	Hub Type		Each
For L Trade Size







				Steel

				1/2"	0.375"	15	Finished	3/4"	3/16"	3/32"	1.79"	2	Standard	00000000	000000


				1/2"	0.375"	16	Finished	3/4"	3/16"	3/32"	1.91"	2	Standard	00000000	00000
				1/2"	0.375"	17	Finished	3/4"	3/16"	3/32"	2.029"	2	Standard	00000000	00000
				1/2"	0.375"	18	Finished	3/4"	3/16"	3/32"	2.149"	2	Standard	00000000	00000
				3/4"	0.375"	15	Finished	3/4"	3/16"	3/32"	1.79"	2	Standard	00000000	00000
				3/4"	0.375"	16	Finished	3/4"	3/16"	3/32"	1.91"	2	Standard	00000000	00000
				3/4"	0.375"	17	Finished	3/4"	3/16"	3/32"	2.029"	2	Standard	00000000	00000
				1"	0.375"	15	Finished	3/4"	3/16"	3/32"	1.79"	2	Standard	00000000	00000
				1"	0.375"	16	Finished	3/4"	3/16"	3/32"	1.91"	2	Standard	00000000	00000
				1"	0.375"	17	Finished	3/4"	3/16"	3/32"	2.029"	2	Standard	00000000	00000


				For H Trade Size







								Steel

								1"	0.500"	21	Plain	3/4"	—	—	3.342"	2	Standard	0000000	000000


								1"	0.500"	22	Plain	3/4"	—	—	3.501"	2	Standard	0000000	000000
								1"	0.500"	24	Plain	3/4"	—	—	3.82"	2	Standard	0000000	000000
								1"	0.500"	26	Plain	3/4"	—	—	4.138"	2	Standard	0000000	000000
								1"	0.500"	28	Plain	3/4"	—	—	4.456"	2	Standard	0000000	000000
								1 1/2"	0.500"	14	Plain	3/4"	—	—	2.228"	2	Standard	0000000	000000
								1 1/2"	0.500"	16	Plain	3/4"	—	—	2.546"	2	Standard	0000000	000000
								1 1/2"	0.500"	18	Plain	3/4"	—	—	2.865"	2	Standard	0000000	000000
								1 1/2"	0.500"	19	Plain	3/4"	—	—	3.024"	2	Standard	0000000	000000
								1 1/2"	0.500"	20	Plain	3/4"	—	—	3.183"	2	Standard	0000000	000000
								1 1/2"	0.500"	21	Plain	3/4"	—	—	3.342"	2	Standard	0000000	000000


								1 1/2"	0.500"	22	Plain	3/4"	—	—	3.501"	2	Standard	00000000	000000
								1 1/2"	0.500"	24	Plain	3/4"	—	—	3.82"	2	Standard	00000000	000000
								1 1/2"	0.500"	26	Plain	3/4"	—	—	4.138"	2	Standard	00000000	000000
								2"	0.500"	14	Plain	3/4"	—	—	2.228"	2	Standard	00000000	000000
								2"	0.500"	16	Plain	3/4"	—	—	2.546"	2	Standard	00000000	000000
								2"	0.500"	18	Plain	3/4"	—	—	2.865"	2	Standard	00000000	000000
								2"	0.500"	19	Plain	3/4"	—	—	3.024"	2	Standard	00000000	000000
								2"	0.500"	20	Plain	3/4"	—	—	3.183"	2	Standard	00000000	000000
								3"	0.500"	16	Plain	3/4"	—	—	2.546"	2	Standard	00000000	000000

V-Belt Drive Pulleys

For 4L, A Belts


Zinc, Solid Body	Zinc, Spoked Body

							Keyway
No. of Grooves	OD	For Shaft Dia.	Pitch Dia.	Wd.	Overall Wd.	Groove Dp.	Wd.	Dp.	Material	Body Type	Includes		Each
1	1.75"	3/4"	1.5"	21/32"	1 13/64"	0.5"	3/16"	3/32"	Zinc Alloy	Solid	One Set Screw	0000000	00000
1	2"	3/4"	1.75"	41/64"	1 1/16"	0.5"	3/16"	3/32"	Zinc Alloy	Solid	One Set Screw	0000000	0000
1	2.25"	3/4"	2"	41/64"	1 3/16"	0.5"	3/16"	3/32"	Zinc Alloy	Solid	One Set Screw	0000000	0000
1	2.5"	3/4"	2.25"	41/64"	1 3/16"	0.5"	3/16"	3/32"	Zinc Alloy	Solid	One Set Screw	0000000	0000
1	2.75"	3/4"	2.5"	41/64"	1 3/16"	0.5"	3/16"	3/32"	Zinc Alloy	Solid	One Set Screw	0000000	0000
1	3"	3/4"	2.75"	41/64"	1 3/16"	0.5"	3/16"	3/32"	Zinc Alloy	Solid	One Set Screw	0000000	00000
1	3.25"	3/4"	3"	41/64"	1 3/16"	0.5"	3/16"	3/32"	Zinc Alloy	Solid	One Set Screw	0000000	00000
1	3.5"	3/4"	3.25"	41/64"	1 3/16"	0.5"	3/16"	3/32"	Zinc Alloy	Solid	One Set Screw	0000000	00000
1	4"	3/4"	3.75"	41/64"	1 3/16"	0.5"	3/16"	3/32"	Zinc Alloy	Solid	One Set Screw	0000000	00000
1	4.5"	3/4"	4.25"	41/64"	1 3/16"	0.5"	3/16"	3/32"	Zinc Alloy	Solid	One Set Screw	0000000	00000
1	5"	3/4"	4.75"	41/64"	1 3/16"	0.5"	3/16"	3/32"	Zinc Alloy	Solid	One Set Screw	0000000	00000
1	6"	3/4"	5.75"	45/64"	1 11/32"	0.5"	3/16"	3/32"	Zinc Alloy	Spoked	One Set Screw	0000000	00000
1	7"	3/4"	6.75"	45/64"	1 11/32"	0.5"	3/16"	3/32"	Zinc Alloy	Spoked	One Set Screw	0000000	00000
1	8"	3/4"	7.75"	45/64"	1 11/32"	0.5"	3/16"	3/32"	Zinc Alloy	Spoked	One Set Screw	0000000	00000
1	9"	3/4"	8.75"	45/64"	1 11/32"	0.5"	3/16"	3/32"	Zinc Alloy	Spoked	One Set Screw	00000000	00000
1	10"	3/4"	9.75"	45/64"	1 11/32"	0.5"	3/16"	3/32"	Zinc Alloy	Spoked	One Set Screw	00000000	00000

For 4L, A, AX Belts


UHMW Polyethylene, Solid Body

UHMW Polyethylene—UHMW polyethylene drive pulleys can be machined to your exact specifications.

No. of Grooves	OD	For Shaft Dia.	For Max. Shaft Dia.	Pitch Dia.	Wd.	Groove Dp.	Material	Body Type		Each
1	3.05"	1/4"	3/4"	2.8"	3/4"	0.49"	UHMW Polyethylene	Solid	0000000	000000

For 5L, B Belts


Zinc, Solid Body

							Keyway
No. of Grooves	OD	For Shaft Dia.	Pitch Dia.	Wd.	Overall Wd.	Groove Dp.	Wd.	Dp.	Material	Body Type	Includes		Each
1	2.5"	3/4"	2"	13/16"	1 9/32"	0.563"	3/16"	3/32"	Zinc Alloy	Solid	One Set Screw	00000000	000000

For 5L, B, BX Belts


UHMW Polyethylene, Solid Body

UHMW Polyethylene—UHMW polyethylene drive pulleys can be machined to your exact specifications.

No. of Grooves	OD	For Shaft Dia.	For Max. Shaft Dia.	Pitch Dia.	Wd.	Groove Dp.	Material	Body Type		Each
1	3.75"	1/2"	3/4"	3.4"	1"	0.58"	UHMW Polyethylene	Solid	0000000	000000

Flat Belt Drive Pulleys

Also known as paper-plant pulleys, these are made of a composite that minimizes belt slippage and wear.

					Keyway
For Belt Wd.	OD	For Shaft Dia.	Dia.	Wd.	Wd.	Dp.	Material	Includes		Each
1"	2"	3/4"	2"	1 1/2"	3/16"	3/32"	Laminate	One Set Screw	00000000	000000
1 1/2"	2"	3/4"	2"	2"	3/16"	3/32"	Laminate	One Set Screw	00000000	00000
2 1/2"	2"	3/4"	2"	3"	3/16"	3/32"	Laminate	Two Set Screws	00000000	00000
3"	2.5"	3/4"	2.5"	3 1/2"	3/16"	3/32"	Laminate	Two Set Screws	00000000	000000
3"	3"	3/4"	3"	3 1/2"	3/16"	3/32"	Laminate	Two Set Screws	00000000	000000
3"	3.5"	3/4"	3.5"	3 1/2"	3/16"	3/32"	Laminate	Two Set Screws	00000000	000000
4"	4"	3/4"	4"	4 1/2"	3/16"	3/32"	Laminate	Two Set Screws	00000000	000000

Adjustable-Speed V-Belt Drive Pulleys


3 Grooves	4 Grooves

Also known as step-cone pulleys, these have multiple groove sizes so you can quickly change rotation speed by moving your belt to a different groove. Use with fractional-horsepower motors for drives with frequent speed changes.

						Keyway
	No. of Grooves	OD (Pitch Dia.)	For Shaft Dia.	Wd.	Groove Dp.	Wd.	Dp.	Material	Body Type	Includes		Each
For 4L, A Belts



		3	2" (1.75"), 3" (2.75"), 4" (3.75")	3/4"	1 7/8"	0.5"	3/16"	3/32"	Zinc Alloy	Solid	One Set Screw	0000000	000000


		4	2" (1.75"), 2.5" (2.25"), 3.5" (3.25"), 4" (3.75")	3/4"	2 1/2"	0.5"	3/16"	3/32"	Zinc Alloy	Solid	One Set Screw	0000000	00000

Round Belt Drive Pulleys

Mount these pulleys directly onto a shaft to transmit rotary motion and torque. Commonly used in harsh environments and wet conditions, they are corrosion and abrasion resistant. The bore can be machined to your exact specifications.

For Belt Dia.	OD	For Shaft Dia.	Dia.	Wd.	Groove Dp.	For Max. Shaft Dia.	Material	Each
1/4"	2.5"	1/4"	2.22"	1/2"	0.14"	3/4"	UHMW Polyethylene	000000
1/4"	3"	1/2"	2.72"	1/2"	0.14"	3/4"	UHMW Polyethylene	00000
3/8"	3"	1/4"	2.59"	5/8"	0.205"	3/4"	UHMW Polyethylene	00000
1/2"	3"	1/4"	2.47"	3/4"	0.265"	3/4"	UHMW Polyethylene	00000

Adjustable-Pitch V-Belt Drive Pulleys


1 Groove	2 Grooves	1 Groove	2 Grooves

Increase efficiency, vary speed, and extend the life of your drive by changing the pitch on these drive pulleys. Turn the sides of the pulley on the threaded hub to increase or decrease the pitch.

						Keyway
	No. of Grooves	For Shaft Dia.	Pitch Dia. (For Belt Trade Size)	Wd.	Overall Wd.	Wd.	Dp.	Material	Body Type	Includes		Each
3.15" OD



		1	3/4"	1.7" to 2.5" (3L), 1.9" to 2.9" (4L, A, AX), 2.4" to 3.2" (5L, B, BX)	21/32" to 31/32"	1 7/8"	3/16"	3/32"	Cast Iron	Solid	One Set Screw	00000000	000000


		3.35" OD



				2	3/4"	1.9" to 2.7" (3L), 2" to 3" (4L, A, AX), 2.5" to 3.3" (5L, B, BX)	1 3/8" to 2"	3"	3/16"	3/32"	Cast Iron	Solid	One Set Screw	0000000	000000


				3.75" OD



						1	3/4"	2.3" to 3.1" (3L), 2.4" to 3.4" (4L, A, AX), 2.7" to 3.7" (5L, B, BX)	21/32" to 1 1/32"	1 7/8"	3/16"	3/32"	Cast Iron	Solid	One Set Screw	00000000	00000


						3.95" OD



								2	3/4"	2.6" to 3.4" (3L), 2.7" to 3.7" (4L, A), 2.8" to 3.8" (5L, B)	1 3/8" to 2 1/8"	3"	3/16"	3/32"	Cast Iron	Solid	One Set Screw	0000000	000000


								4.15" OD



										1	3/4"	2.7" to 3.5" (3L), 2.8" to 3.8" (4L, A, AX), 3.1" to 4.1" (5L, B, BX)	21/32" to 1 1/32"	1 7/8"	3/16"	3/32"	Cast Iron	Solid	One Set Screw	00000000	00000


										4.75" OD



												1	3/4"	3.3" to 4.1" (3L), 3.4" to 4.4" (4L, A, AX), 3.7" to 4.7" (5L, B, BX)	11/16" to 1 1/16"	1 15/16"	3/16"	3/32"	Cast Iron	Solid	One Set Screw	00000000	00000


												2	3/4"	3.3" to 4.1" (3L), 3.4" to 4.4" (4L, A, AX), 3.7" to 4.7" (5L, B, BX)	1 3/8" to 2 1/8"	3"	3/16"	3/32"	Cast Iron	Solid	One Set Screw	0000000	000000


												5.95" OD



														2	3/4"	, 4.2" to 5.2" (4L, A, AX), 4.5" to 5.5" (5L, B, BX)	1 5/8" to 2 3/8"	3 1/4"	3/16"	3/32"	Cast Iron	Solid	One Set Screw	0000000	000000


														6.5" OD



																1	3/4"	, 4.7" to 5.7" (4L, A, AX), 4.8" to 6" (5L, B, BX)	7/8" to 1 1/4"	2 7/32"	3/16"	3/32"	Cast Iron	Solid	Two Set Screws	00000000	000000

Constant-Tension V-Belt Drive Pulleys

A built-in spring maintains tension on your belt.

For 4L, 5L, A, AX, B, BX Belts

						Keyway
No. of Grooves	OD	For Shaft Dia.	Pitch Dia.	Wd.	Overall Wd.	Wd.	Dp.	Material	Body Type	Includes		Each
1	3.25"	3/4"	1.91" to 3.15"	11/16"	2 3/8"	3/16"	3/32"	Cast Iron	Solid	One Set Screw	0000000	000000
1	4"	3/4"	1.95" to 3.9"	11/16"	2 7/16"	3/16"	3/32"	Cast Iron	Solid	One Set Screw	0000000	000000
1	5"	3/4"	2.37" to 4.84"	15/16"	3 5/8"	3/16"	3/32"	Cast Iron	Solid	One Set Screw	0000000	000000