Pulley Alignment Lasers | McMaster-Carr

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15 Products

Pulley Aligning Lasers

Three Adjustable Targets

One Adjustable Target

Check that your pulley, gear, or sprocket system is properly aligned. These magnetic lasers stick to equipment made of steel. Project the laser beam down your belt or chain and look to see how it hits the target—you can determine angular and offset misalignment at the same time. The target has a machined surface that sits parallel to the contact surface for precise alignment. Adjust your setup until the laser line overlaps with the reference line on the target. These lasers are portable and battery powered, so they’re easy to use in spaces without outlets.

Red lasers are best for indoor environments, since they’re dimmer than green lasers.

Green lasers appear up to 10 times brighter than red lasers, so they’re easier to see outdoors or in bright indoor lighting, as well as from far away.

Lasers with one adjustable target have a single laser line that indicates offset and angular misalignment. A mirror on the target reflects the laser back to the transmitter’s reference line to show misalignment. No need to fuss with the traditional multi-target method.

Lasers with a built-in LED flashlight provide light in dim areas.

For Pulley								O'all
Spacing	Dia.	Accuracy	Range	Line Size	Laser Class	Wavelength, nm	Tolerance per Foot	Lg.	Wd.	Ht.	Container Type	Batteries Included	Includes		Each
Red Laser
3"-20 ft.	3"-36"	1/16" @ 10 ft. 5/16" @ 50 ft.	50 ft.	7 ft. @ 6 ft.	Class II	635	-0.002" to 0.002"	6 3/4"	5/8"	1 3/4"	Plastic Case	Yes	One 30-150 lb. Capacity Belt Tension Tester, One 100-300 lb. Capacity Belt Tension Tester, Three Adjustable Targets	0000000	000000000
6"-22 ft.	3"-60"	1/16" @ 6 ft.	6 ft.	2 1/4 ft. @ 6 ft.	Class II	635	-0.0125" to 0.0125"	1 1/4"	1 1/4"	8"	Plastic Case	Yes	Built-In LED, One Adjustable Target	0000000	00000000
Green Laser
3"-20 ft.	3"-36"	1/16" @ 10 ft. 5/16" @ 50 ft.	50 ft.	7 ft. @ 6 ft.	Class II	532	-0.002" to 0.002"	6 3/4"	5/8"	1 3/4"	Plastic Case	Yes	Three Adjustable Targets	0000000	00000000
6"-22 ft.	3"-60"	1/16" @ 6 ft. 1/32" @ 15 ft.	15 ft.	2 1/4 ft. @ 6 ft.	Class II	532	-0.0125" to 0.0125"	1 1/4"	1 1/4"	8"	Plastic Case	Yes	Built-In LED, One Adjustable Target	0000000	00000000

Pocket-Sized Pulley Aligning Lasers

Slip this laser into your pocket so it's on hand to align belts, pulleys, chain, and sprockets. Place the tool against the side of your pulley or sprocket and project the laser onto the included target to detect angular or offset misalignment. They mount magnetically, so you don’t need any fasteners to secure them. The surface of the laser is machined, so it sits flush against flat surfaces for easy and precise alignment. They’re powered by a disposable battery, so they’re portable.

Style B lasers have a threaded tip, so they’re compatible with converters that change the shape of the laser, so you can perform a variety of tasks with the same tool.

Lasers

								O'all
Style	For Max. Pulley Spacing	Accuracy	Range	Dot Size	Laser Class	Wavelength, nm	Tolerance per Foot	Lg.	Wd.	Ht.	Magnet Material	Batteries Included	No. of Batteries Required	Battery Size		Each
A	100 ft.	0.250" @ 100 ft.	200 ft.	3/8" @ 100 ft.	Class II	650	0.0025"	1 3/4"	5/8"	1"	Neodymium	No	4	386	000000	0000000
B	50 ft.	0.125" @ 100 ft.	400 ft.	3/8" @ 100 ft.	Class IIIa	650	0.0013"	2 1/4"	5/8"	1"	Neodymium	No	4	386	0000000	000000

Optional Converters for Style B

Converters

Component	Line Size	Dotted Line Size		Each
90° Beam Splitter	__	__	000000000	0000000
Dot-to-Dotted Line Converter	__	2" @ 1 ft.	000000000	000000
Dot-to-Line Converter	8" @ 1 ft.	__	000000000	00000
Dot-to-Line Converter	6" @ 1 ft.	__	000000000	00000
Dot-to-Line Converter	28" @ 1 ft.	__	000000000	00000
Dot-to-Line Converter	16" @ 1 ft.	__	000000000	00000

Roller Aligning Lasers

Red Laser

Green Laser

These lasers take aligning rollers from the traditional multi-tool, multi-person job to a one-tool, one-person job. Strap the transmitter to the roller you want to match and the receiver to the roller you want to check. Instead of aligning with lots of trial and error, these tools have a horizontal beam that shows if your rollers are aligned in the same plane, and a vertical beam that shows if the rollers are evenly spaced along their length. Simply adjust the roller until the beams line up with the tools' reference points.

In addition to being easy to use, these lasers were also designed to be useful in most roller setups. The adjustable straps allow you to secure them to different roller sizes and materials. They're also compact enough to fit in tight spaces between rollers.

Red lasers are best viewed indoors, since they’re dimmer than green lasers.

Green lasers appear up to 10 times brighter than red lasers, so they’re easier to see outdoors or in bright indoor lighting, as well as from far away.

							Overall
For Roller Dia.	Accuracy	Range	No. of Lines	Line Size	Laser Class	Wavelength, nm	Lg.	Wd.	Ht.	Container Type	Batteries Included	Battery Type	Battery Charger Included	Includes		Each
Red Laser
1"-4"	±0.001" @ 12"	4 ft.	2	0.002" @ 4 ft.	Class II	635	8 1/2"	2 1/2"	2"	Plastic Case	Yes	Rechargeable	Yes	One Adjustable Target	0000000	000000000
Green Laser
1"-12"	±0.001" @ 12"	10 ft.	2	0.007" @ 4 ft.	Class II	532	12"	4 1/4"	3"	Plastic Case	Yes	Rechargeable	Yes	One Adjustable Target	0000000	00000000
6"-96"	±0.001" @ 12"	10 ft.	2	0.007" @ 4 ft.	Class II	532	12"	16 1/2"	6"	Plastic Case	Yes	Rechargeable	Yes	One Adjustable Target	0000000	000000000