Adjustable Sheave Pulleys

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58 Products

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	1/2"	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"	—	—	Cast Iron	Solid	One Set Screw	00000000	000000


		1	5/8"	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	00000
		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	00000
		1	7/8"	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	00000


		3.35" OD



				2	1/2"	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"	—	—	Cast Iron	Solid	One Set Screw	0000000	000000


				2	5/8"	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
				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
				2	7/8"	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	1/2"	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"	—	—	Cast Iron	Solid	One Set Screw	00000000	00000


						1	5/8"	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
						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
						1	7/8"	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
						1	1"	2.7" to 3.5" (3L), 2.9" to 3.9" (4L, A, AX), 3" to 4" (5L, B, BX)	9/16" to 1"	1 3/4"	1/4"	1/8"	Cast Iron	Solid	Two Set Screws	00000000	00000


						3.95" OD



								2	1/2"	2.5" to 3.3" (3L), 2.6" to 3.6" (4L, A, AX), 2.9" to 3.9" (5L, B, BX)	1 3/8" to 2 1/8"	3"	—	—	Cast Iron	Solid	One Set Screw	0000000	000000


								2	5/8"	2.5" to 3.3" (3L), 2.6" to 3.6" (4L, A, AX), 2.9" to 3.9" (5L, B, BX)	1 3/8" to 2 1/8"	3"	3/16"	3/32"	Cast Iron	Solid	One Set Screw	0000000	000000
								2	3/4"	2.5" to 3.3" (3L), 2.6" to 3.6" (4L, A, AX), 2.9" to 3.9" (5L, B, BX)	1 3/8" to 2 1/8"	3"	3/16"	3/32"	Cast Iron	Solid	One Set Screw	0000000	000000
								2	7/8"	2.5" to 3.3" (3L), 2.6" to 3.6" (4L, A, AX), 2.9" to 3.9" (5L, B, BX)	1 3/8" to 2 1/8"	3"	3/16"	3/32"	Cast Iron	Solid	One Set Screw	0000000	000000
								2	1 1/8"	2.5" to 3.3" (3L), 2.6" to 3.6" (4L, A, AX), 2.9" to 3.9" (5L, B, BX)	1 3/8" to 2 1/8"	3"	1/4"	1/8"	Cast Iron	Solid	One Set Screw	0000000	000000


								4.15" OD



										1	1/2"	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"	—	—	Cast Iron	Solid	One Set Screw	00000000	00000


										1	5/8"	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
										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
										1	7/8"	2.7" to 3.5" (3L), 2.8" to 3.8" (4L, A, AX), 3.1" to 4.1" (5L, B, BX)	3/4" to 1 1/8"	2 5/32"	3/16"	3/32"	Cast Iron	Solid	One Set Screw	00000000	00000
										1	1"	2.7" to 3.5" (3L), 2.8" to 3.8" (4L, A, AX), 3.1" to 4.1" (5L, B, BX)	3/4" to 1 1/8"	2 5/32"	1/4"	1/8"	Cast Iron	Solid	One Set Screw	00000000	00000
										1	1 1/8"	2.7" to 3.5" (3L), 2.8" to 3.8" (4L, A, AX), 3.1" to 4.1" (5L, B, BX)	3/4" to 1 1/8"	2 5/32"	1/4"	1/8"	Cast Iron	Solid	One Set Screw	00000000	00000


										4.75" OD



										1	1/2"	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"	—	—	Cast Iron	Solid	One Set Screw	00000000	00000


										1	5/8"	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
										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
										1	7/8"	3.3" to 4.1" (3L), 3.4" to 4.4" (4L, A, AX), 3.7" to 4.7" (5L, B, BX)	3/4" to 1 1/8"	2 5/32"	3/16"	3/32"	Cast Iron	Solid	One Set Screw	00000000	000000
										1	1"	3.3" to 4.1" (3L), 3.4" to 4.4" (4L, A, AX), 3.7" to 4.7" (5L, B, BX)	3/4" to 1 1/8"	2 5/32"	1/4"	1/8"	Cast Iron	Solid	One Set Screw	00000000	000000
										1	1 1/8"	3.3" to 4.1" (3L), 3.4" to 4.4" (4L, A, AX), 3.7" to 4.7" (5L, B, BX)	3/4" to 1 1/8"	2 5/32"	1/4"	1/8"	Cast Iron	Solid	One Set Screw	00000000	000000
										2	1/2"	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"	—	—	Cast Iron	Solid	One Set Screw	0000000	000000
		2								5/8"	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
		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
		2	7/8"							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
		2	1"							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"	—	—	Cast Iron	Solid	One Set Screw	0000000	000000


		2	1 1/8"							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"	1/4"	1/8"	Cast Iron	Solid	One Set Screw	0000000	000000


		5.35" OD



				1						7/8"	3.9" to 4.7" (3L), 4" to 5" (4L, A, AX), 4.3" to 5.3" (5L, B, BX)	3/4" to 1 1/8"	2 5/32"	3/16"	3/32"	Cast Iron	Solid	One Set Screw	00000000	000000


				1	1"					3.9" to 4.7" (3L), 4" to 5" (4L, A, AX), 4.3" to 5.3" (5L, B, BX)	3/4" to 1 1/8"	2 5/32"	1/4"	1/8"	Cast Iron	Solid	One Set Screw	00000000	000000
				1	1 1/8"					3.9" to 4.7" (3L), 4" to 5" (4L, A, AX), 4.3" to 5.3" (5L, B, BX)	3/4" to 1 1/8"	2 5/32"	1/4"	1/8"	Cast Iron	Solid	One Set Screw	00000000	000000
				2	7/8"					3.9" to 4.7" (3L), 4" to 5" (4L, A, AX), 4.3" to 5.3" (5L, B, BX)	1 3/8" to 2 1/8"	3"	3/16"	3/32"	Cast Iron	Solid	One Set Screw	0000000	000000
				2	1 1/8"					3.9" to 4.7" (3L), 4" to 5" (4L, A, AX), 4.3" to 5.3" (5L, B, BX)	1 3/8" to 2 1/8"	3"	1/4"	1/8"	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


						2	1"			, 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"	1/4"	1/8"	Cast Iron	Solid	One Set Screw	0000000	000000
						2	1 1/8"			, 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"	1/4"	1/8"	Cast Iron	Solid	One Set Screw	0000000	000000
						2	1 3/8"			, 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"	5/16"	5/32"	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


								1		7/8"	, 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
								1	1 1/8"	, 4.7" to 5.7" (4L, A, AX), 4.8" to 6" (5L, B, BX)	7/8" to 1 1/4"	2 7/32"	1/4"	1/8"	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"	1/2"	1.91" to 3.15"	11/16"	2 3/8"	—	—	Cast Iron	Solid	One Set Screw	0000000	000000
1	3.25"	5/8"	1.91" to 3.15"	11/16"	2 3/8"	3/16"	3/32"	Cast Iron	Solid	One Set Screw	0000000	00000
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	00000
1	4"	1/2"	1.95" to 3.9"	11/16"	2 7/16"	—	—	Cast Iron	Solid	One Set Screw	0000000	000000
1	4"	5/8"	1.95" to 3.9"	11/16"	2 7/16"	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"	5/8"	2.37" to 4.84"	15/16"	3 5/8"	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
1	5"	7/8"	2.37" to 4.84"	15/16"	3 5/8"	3/16"	3/32"	Cast Iron	Solid	One Set Screw	0000000	000000
1	5"	1"	2.37" to 4.84"	15/16"	3 5/8"	1/4"	1/8"	Cast Iron	Solid	One Set Screw	0000000	000000