3L Pulleys | McMaster-Carr

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62 Products

V-Belt Pulleys

Zinc, Solid Body

Pulleys for 2L and 3L belt are for fractional-horsepower V-belt drives.

For technical drawings and 3-D models, click on a part number.

For 3L Belts
OD	For Shaft Dia.	Pitch Dia.	Wd.	O'all Wd.	Groove Dp.	Material	Body Type	Includes		Each
1"	5/16"	0.9"	1/2"	7/8"	0.25"	Zinc	Solid	One Set Screw	00000000	00000
1"	3/8"	0.9"	1/2"	7/8"	0.25"	Zinc	Solid	One Set Screw	00000000	0000
2"	1/4"	1.9"	1/2"	1"	0.375"	Zinc	Solid	One Set Screw	00000000	0000
2"	5/16"	1.9"	1/2"	1"	0.375"	Zinc	Solid	One Set Screw	00000000	0000
2"	3/8"	1.9"	1/2"	1"	0.375"	Zinc	Solid	One Set Screw	00000000	0000
2"	1/2"	1.9"	1/2"	1"	0.375"	Zinc	Solid	One Set Screw	00000000	0000
2"	5/8"	1.9"	1/2"	1"	0.375"	Zinc	Solid	One Set Screw	00000000	0000
2.5"	3/8"	2.4"	1/2"	1"	0.375"	Zinc	Solid	One Set Screw	00000000	00000
2.5"	1/2"	2.4"	1/2"	1"	0.375"	Zinc	Solid	One Set Screw	00000000	00000
2.5"	5/8"	2.4"	1/2"	1"	0.375"	Zinc	Solid	One Set Screw	00000000	00000
3"	3/8"	2.9"	1/2"	1"	0.375"	Zinc	Solid	One Set Screw	00000000	00000
3"	1/2"	2.9"	1/2"	1"	0.375"	Zinc	Solid	One Set Screw	00000000	00000
3"	5/8"	2.9"	1/2"	1"	0.375"	Zinc	Solid	One Set Screw	00000000	00000
3.5"	3/8"	3.4"	1/2"	1"	0.375"	Zinc	Solid	One Set Screw	00000000	00000
3.5"	1/2"	3.4"	1/2"	1"	0.375"	Zinc	Solid	One Set Screw	00000000	00000
3.5"	5/8"	3.4"	1/2"	1"	0.375"	Zinc	Solid	One Set Screw	00000000	00000
4"	3/8"	3.9"	1/2"	1"	0.375"	Zinc	Solid	One Set Screw	00000000	00000
4"	1/2"	3.9"	1/2"	1"	0.375"	Zinc	Solid	One Set Screw	00000000	00000
4"	5/8"	3.9"	1/2"	1"	0.375"	Zinc	Solid	One Set Screw	00000000	00000

Adjustable-Pitch V-Belt Pulleys

1 Groove

2 Grooves

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

For technical drawings and 3-D models, click on a part number.

For 3L, 4L, A, AX and 5L, B, BX Belts

1 Groove

2 Grooves

					Keyway
No. of Grooves	For Shaft Dia.	Pitch Dia. (For Belt Trade Size)	Wd.	O'all Wd.	Wd.	Dp.	Material	Body Type	Includes		Each
3.15" OD
1	1/2"	1.7"-2.5" (3L), 1.9"-2.9" (4L, A, AX), 2.4"-3.2" (5L, B, BX)	21/32"-31/32"	1 7/8"	__	__	Cast Iron	Solid	One Set Screw	00000000	000000
1	5/8"	1.7"-2.5" (3L), 1.9"-2.9" (4L, A, AX), 2.4"-3.2" (5L, B, BX)	21/32"-31/32"	1 7/8"	3/16"	3/32"	Cast Iron	Solid	One Set Screw	00000000	00000
1	3/4"	1.7"-2.5" (3L), 1.9"-2.9" (4L, A, AX), 2.4"-3.2" (5L, B, BX)	21/32"-31/32"	1 7/8"	3/16"	3/32"	Cast Iron	Solid	One Set Screw	00000000	00000
1	7/8"	1.7"-2.5" (3L), 1.9"-2.9" (4L, A, AX), 2.4"-3.2" (5L, B, BX)	21/32"-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"-2.7" (3L), 2"-3" (4L, A, AX), 2.5"-3.3" (5L, B, BX)	1 3/8"-2"	3"	__	__	Cast Iron	Solid	One Set Screw	0000000	000000
2	5/8"	1.9"-2.7" (3L), 2"-3" (4L, A, AX), 2.5"-3.3" (5L, B, BX)	1 3/8"-2"	3"	3/16"	3/32"	Cast Iron	Solid	One Set Screw	0000000	000000
2	3/4"	1.9"-2.7" (3L), 2"-3" (4L, A, AX), 2.5"-3.3" (5L, B, BX)	1 3/8"-2"	3"	3/16"	3/32"	Cast Iron	Solid	One Set Screw	0000000	000000
2	7/8"	1.9"-2.7" (3L), 2"-3" (4L, A, AX), 2.5"-3.3" (5L, B, BX)	1 3/8"-2"	3"	3/16"	3/32"	Cast Iron	Solid	One Set Screw	0000000	000000
3.75" OD
1	1/2"	2.3"-3.1" (3L), 2.4"-3.4" (4L, A, AX), 2.7"-3.7" (5L, B, BX)	21/32"-1 1/32"	1 7/8"	__	__	Cast Iron	Solid	One Set Screw	00000000	00000
1	5/8"	2.3"-3.1" (3L), 2.4"-3.4" (4L, A, AX), 2.7"-3.7" (5L, B, BX)	21/32"-1 1/32"	1 7/8"	3/16"	3/32"	Cast Iron	Solid	One Set Screw	00000000	00000
1	3/4"	2.3"-3.1" (3L), 2.4"-3.4" (4L, A, AX), 2.7"-3.7" (5L, B, BX)	21/32"-1 1/32"	1 7/8"	3/16"	3/32"	Cast Iron	Solid	One Set Screw	00000000	00000
1	7/8"	2.3"-3.1" (3L), 2.4"-3.4" (4L, A, AX), 2.7"-3.7" (5L, B, BX)	21/32"-1 1/32"	1 7/8"	3/16"	3/32"	Cast Iron	Solid	One Set Screw	00000000	00000
1	1"	2.7"-3.5" (3L), 2.9"-3.9" (4L, A, AX), 3"-4" (5L, B, BX)	9/16"-1"	1 3/4"	1/4"	1/8"	Cast Iron	Solid	Two Set Screws	00000000	00000
3.95" OD
2	1/2"	2.5"-3.3" (3L), 2.6"-3.6" (4L, A, AX), 2.9"-3.9" (5L, B, BX)	1 3/8"-2 1/8"	3"	__	__	Cast Iron	Solid	One Set Screw	0000000	000000
2	5/8"	2.5"-3.3" (3L), 2.6"-3.6" (4L, A, AX), 2.9"-3.9" (5L, B, BX)	1 3/8"-2 1/8"	3"	3/16"	3/32"	Cast Iron	Solid	One Set Screw	0000000	000000
2	3/4"	2.5"-3.3" (3L), 2.6"-3.6" (4L, A, AX), 2.9"-3.9" (5L, B, BX)	1 3/8"-2 1/8"	3"	3/16"	3/32"	Cast Iron	Solid	One Set Screw	0000000	000000
2	7/8"	2.5"-3.3" (3L), 2.6"-3.6" (4L, A, AX), 2.9"-3.9" (5L, B, BX)	1 3/8"-2 1/8"	3"	3/16"	3/32"	Cast Iron	Solid	One Set Screw	0000000	000000
2	1 1/8"	2.5"-3.3" (3L), 2.6"-3.6" (4L, A, AX), 2.9"-3.9" (5L, B, BX)	1 3/8"-2 1/8"	3"	1/4"	1/8"	Cast Iron	Solid	One Set Screw	0000000	000000
4.15" OD
1	1/2"	2.7"-3.5" (3L), 2.8"-3.8" (4L, A, AX), 3.1"-4.1" (5L, B, BX)	21/32"-1 1/32"	1 7/8"	__	__	Cast Iron	Solid	One Set Screw	00000000	00000
1	5/8"	2.7"-3.5" (3L), 2.8"-3.8" (4L, A, AX), 3.1"-4.1" (5L, B, BX)	21/32"-1 1/32"	1 7/8"	3/16"	3/32"	Cast Iron	Solid	One Set Screw	00000000	00000
1	3/4"	2.7"-3.5" (3L), 2.8"-3.8" (4L, A, AX), 3.1"-4.1" (5L, B, BX)	21/32"-1 1/32"	1 7/8"	3/16"	3/32"	Cast Iron	Solid	One Set Screw	00000000	00000
1	7/8"	2.7"-3.5" (3L), 2.8"-3.8" (4L, A, AX), 3.1"-4.1" (5L, B, BX)	3/4"-1 1/8"	2 5/32"	3/16"	3/32"	Cast Iron	Solid	One Set Screw	00000000	00000
1	1"	2.7"-3.5" (3L), 2.8"-3.8" (4L, A, AX), 3.1"-4.1" (5L, B, BX)	3/4"-1 1/8"	2 5/32"	1/4"	1/8"	Cast Iron	Solid	One Set Screw	00000000	00000
1	1 1/8"	2.7"-3.5" (3L), 2.8"-3.8" (4L, A, AX), 3.1"-4.1" (5L, B, BX)	3/4"-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"-4.1" (3L), 3.4"-4.4" (4L, A, AX), 3.7"-4.7" (5L, B, BX)	11/16"-1 1/16"	1 15/16"	__	__	Cast Iron	Solid	One Set Screw	00000000	00000
1	5/8"	3.3"-4.1" (3L), 3.4"-4.4" (4L, A, AX), 3.7"-4.7" (5L, B, BX)	11/16"-1 1/16"	1 15/16"	3/16"	3/32"	Cast Iron	Solid	One Set Screw	00000000	00000
1	3/4"	3.3"-4.1" (3L), 3.4"-4.4" (4L, A, AX), 3.7"-4.7" (5L, B, BX)	11/16"-1 1/16"	1 15/16"	3/16"	3/32"	Cast Iron	Solid	One Set Screw	00000000	00000
1	7/8"	3.3"-4.1" (3L), 3.4"-4.4" (4L, A, AX), 3.7"-4.7" (5L, B, BX)	3/4"-1 1/8"	2 5/32"	3/16"	3/32"	Cast Iron	Solid	One Set Screw	00000000	000000
1	1"	3.3"-4.1" (3L), 3.4"-4.4" (4L, A, AX), 3.7"-4.7" (5L, B, BX)	3/4"-1 1/8"	2 5/32"	1/4"	1/8"	Cast Iron	Solid	One Set Screw	00000000	000000
1	1 1/8"	3.3"-4.1" (3L), 3.4"-4.4" (4L, A, AX), 3.7"-4.7" (5L, B, BX)	3/4"-1 1/8"	2 5/32"	1/4"	1/8"	Cast Iron	Solid	One Set Screw	00000000	000000
2	1/2"	3.3"-4.1" (3L), 3.4"-4.4" (4L, A, AX), 3.7"-4.7" (5L, B, BX)	1 3/8"-2 1/8"	3"	__	__	Cast Iron	Solid	One Set Screw	0000000	000000
2	5/8"	3.3"-4.1" (3L), 3.4"-4.4" (4L, A, AX), 3.7"-4.7" (5L, B, BX)	1 3/8"-2 1/8"	3"	3/16"	3/32"	Cast Iron	Solid	One Set Screw	0000000	000000
2	3/4"	3.3"-4.1" (3L), 3.4"-4.4" (4L, A, AX), 3.7"-4.7" (5L, B, BX)	1 3/8"-2 1/8"	3"	3/16"	3/32"	Cast Iron	Solid	One Set Screw	0000000	000000
2	7/8"	3.3"-4.1" (3L), 3.4"-4.4" (4L, A, AX), 3.7"-4.7" (5L, B, BX)	1 3/8"-2 1/8"	3"	3/16"	3/32"	Cast Iron	Solid	One Set Screw	0000000	000000
2	1"	3.3"-4.1" (3L), 3.4"-4.4" (4L, A, AX), 3.7"-4.7" (5L, B, BX)	1 3/8"-2 1/8"	3"	__	__	Cast Iron	Solid	One Set Screw	0000000	000000
2	1 1/8"	3.3"-4.1" (3L), 3.4"-4.4" (4L, A, AX), 3.7"-4.7" (5L, B, BX)	1 3/8"-2 1/8"	3"	1/4"	1/8"	Cast Iron	Solid	One Set Screw	0000000	000000
5.35" OD
1	7/8"	3.9"-4.7" (3L), 4"-5" (4L, A, AX), 4.3"-5.3" (5L, B, BX)	3/4"-1 1/8"	2 5/32"	3/16"	3/32"	Cast Iron	Solid	One Set Screw	00000000	000000
1	1"	3.9"-4.7" (3L), 4"-5" (4L, A, AX), 4.3"-5.3" (5L, B, BX)	3/4"-1 1/8"	2 5/32"	1/4"	1/8"	Cast Iron	Solid	One Set Screw	00000000	000000
1	1 1/8"	3.9"-4.7" (3L), 4"-5" (4L, A, AX), 4.3"-5.3" (5L, B, BX)	3/4"-1 1/8"	2 5/32"	1/4"	1/8"	Cast Iron	Solid	One Set Screw	00000000	000000
2	7/8"	3.9"-4.7" (3L), 4"-5" (4L, A, AX), 4.3"-5.3" (5L, B, BX)	1 3/8"-2 1/8"	3"	3/16"	3/32"	Cast Iron	Solid	One Set Screw	0000000	000000
2	1"	3.9"-4.7" (3L), 4"-5" (4L, A, AX), 4.3"-5.3" (5L, B, BX)	1 3/8"-2 1/8"	3"	1/4"	1/8"	Cast Iron	Solid	One Set Screw	0000000	000000
2	1 1/8"	3.9"-4.7" (3L), 4"-5" (4L, A, AX), 4.3"-5.3" (5L, B, BX)	1 3/8"-2 1/8"	3"	1/4"	1/8"	Cast Iron	Solid	One Set Screw	0000000	000000

V-Belt Trade Number Identifiers

Quickly determine the size of any belt.

For Belt Trade Size	Material	Color	Maximum Length Measured		Each
2L, 3L, 4L, 5L	Aluminum and Plastic	Orange	100"	0000000	0000000