Micro Rollers | McMaster-Carr

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103 Products

Small-Diameter Conveyor Rollers

Galvanized Steel Rollers—Galvanized steel rollers are strong and have some corrosion resistance.

Aluminum Rollers—Aluminum rollers are lightweight and more corrosion resistant than galvanized steel.

		Roller
	For Between Frame Wd.	Wd.	Ga.	Wt. Cap., lb.	Overall Wd.	Bearing Material	Temp. Range, ° F		Each
1/4" Round Axle







				3/4" Dia. Galvanized Steel Rollers

				3"	2 3/4"	20	30	3 3/4"	Steel	-15 to 220	6409N21	000000


				4"	3 3/4"	20	30	4 3/4"	Steel	-15 to 220	6409N22	00000
				4 7/8"	4 5/8"	20	30	5 5/8"	Steel	-15 to 220	2278T11	00000
				6"	5 3/4"	20	30	6 3/4"	Steel	-15 to 220	6409N23	00000
				7"	6 3/4"	20	30	7 3/4"	Steel	-15 to 220	6409N24	00000
				8"	7 3/4"	20	30	8 3/4"	Steel	-15 to 220	6409N25	00000
				9"	8 3/4"	20	30	9 3/4"	Steel	-15 to 220	6409N26	00000
				10"	9 3/4"	20	30	10 3/4"	Steel	-15 to 220	6409N27	00000
				10 3/8"	10 1/8"	20	30	11 1/8"	Steel	-15 to 220	2278T15	00000
				11"	10 3/4"	20	30	11 3/4"	Steel	-15 to 220	6409N28	00000
				12"	11 3/4"	20	30	12 3/4"	Steel	-15 to 220	6409N29	00000


				13"	12 3/4"	20	30	13 3/4"	Steel	-15 to 220	6409N31	00000
				13 7/8"	13 5/8"	20	30	14 5/8"	Steel	-15 to 220	2278T18	00000
				15"	14 3/4"	20	30	15 3/4"	Steel	-15 to 220	6409N32	00000
				16"	15 3/4"	20	30	16 3/4"	Steel	-15 to 220	6409N33	00000
				17"	16 3/4"	20	30	17 3/4"	Steel	-15 to 220	6409N34	00000
				19"	18 3/4"	20	30	19 3/4"	Steel	-15 to 220	6409N35	00000
				20"	19 3/4"	20	30	20 3/4"	Steel	-15 to 220	6409N36	00000
				21"	20 3/4"	20	30	21 3/4"	Steel	-15 to 220	6409N37	00000
				22"	21 3/4"	20	30	22 3/4"	Steel	-15 to 220	6409N38	00000
				23"	22 3/4"	20	30	23 3/4"	Steel	-15 to 220	6409N39	00000


				24"	23 3/4"	20	30	24 3/4"	Steel	-15 to 220	6409N41	00000
				25"	24 3/4"	20	30	25 3/4"	Steel	-15 to 220	6409N42	00000
				26"	25 3/4"	20	30	26 3/4"	Steel	-15 to 220	6409N43	00000
				27"	26 3/4"	20	30	27 3/4"	Steel	-15 to 220	6409N44	00000
				28"	27 3/4"	20	30	28 3/4"	Steel	-15 to 220	6409N45	00000
				29"	28 3/4"	20	30	29 3/4"	Steel	-15 to 220	6409N46	00000
				30"	29 3/4"	20	30	30 3/4"	Steel	-15 to 220	6409N47	00000




						3/4" Dia. Aluminum Rollers

						3"	2 3/4"	20	20	3 3/4"	Steel	-15 to 220	6409N48	00000


						4"	3 3/4"	20	20	4 3/4"	Steel	-15 to 220	6409N49	00000
						4 7/8"	4 5/8"	20	20	5 5/8"	Steel	-15 to 220	2278T21	00000
						6"	5 3/4"	20	20	6 3/4"	Steel	-15 to 220	6409N51	00000
						8"	7 3/4"	20	20	8 3/4"	Steel	-15 to 220	6409N52	00000
						10"	9 3/4"	20	20	10 3/4"	Steel	-15 to 220	6409N53	00000
						10 3/8"	10 1/8"	20	20	11 1/8"	Steel	-15 to 220	2278T25	00000
						12"	11 3/4"	20	20	12 3/4"	Steel	-15 to 220	6409N54	00000
						13 7/8"	13 5/8"	20	20	14 5/8"	Steel	-15 to 220	2278T28	00000
						16"	15 3/4"	20	20	16 3/4"	Steel	-15 to 220	6409N55	00000
						17 7/8"	17 5/8"	20	20	18 5/8"	Steel	-15 to 220	6409N56	00000


20"						19 3/4"	20	20	20 3/4"	Steel	-15 to 220	6409N57	00000
22"	21 3/4"					20	20	22 3/4"	Steel	-15 to 220	6409N58	00000
24"	23 3/4"					20	20	24 3/4"	Steel	-15 to 220	6409N59	00000
26"	25 3/4"					20	20	26 3/4"	Steel	-15 to 220	6409N61	00000
28"	27 3/4"					20	20	28 3/4"	Steel	-15 to 220	6409N62	00000

Small-Diameter Corrosion-Resistant Conveyor Rollers


Round Axle		Round Axle

Made from stainless steel, these rollers are suitable for washdown applications.

	Rollers									Replacement Bearings
		Roller
	For Between Frame Wd.	Wd.	Ga.	Wt. Cap., lb.	Overall Wd.	Bearing Material	Temp. Range, ° F		Each		Each
1/4" Round Axle







				3/4" Dia. Stainless Steel Rollers

				3"	2 1/16"	16	60	4"	Plastic	-120 to 215	6414N111	000000	———	0


				4"	3 1/8"	20	20	5"	Plastic	30 to 150	6414N18	00000	2278T72	00000
				4 7/8"	4"	20	20	5 7/8"	Plastic	30 to 150	2278T31	00000	2278T72	0000
				6"	5 1/8"	20	20	7"	Plastic	30 to 150	6414N19	00000	2278T72	0000
				8"	7 1/8"	20	20	9"	Plastic	30 to 150	6414N21	00000	2278T72	0000
				10"	9 1/8"	20	20	11"	Plastic	30 to 150	6414N22	00000	2278T72	0000
				10 3/8"	9 1/2"	20	20	11 3/8"	Plastic	30 to 150	2278T35	00000	2278T72	0000
				12"	11 1/8"	20	20	13"	Plastic	30 to 150	6414N23	00000	2278T72	0000
				13 7/8"	13"	20	20	14 7/8"	Plastic	30 to 150	2278T38	00000	2278T72	0000
				16"	15 1/8"	20	20	17"	Plastic	30 to 150	6414N24	00000	2278T72	0000
				17 7/8"	17"	20	20	18 7/8"	Plastic	30 to 150	6414N25	00000	2278T72	0000


				20"	19 1/8"	20	20	21"	Plastic	30 to 150	6414N26	00000	2278T72	0000
				22"	21 1/8"	20	20	23"	Plastic	30 to 150	6414N27	00000	2278T72	0000
				24"	23 1/8"	20	20	25"	Plastic	30 to 150	6414N28	00000	2278T72	0000
				26"	25 1/8"	20	20	27"	Plastic	30 to 150	6414N29	00000	2278T72	0000
				28"	27 1/8"	20	20	29"	Plastic	30 to 150	6414N31	00000	2278T72	0000
				30"	29 1/8"	20	20	31"	Plastic	30 to 150	6414N32	00000	2278T72	0000

Abrasion-Resistant Bench-Top Roller Conveyors

Push glass, painted objects, and other delicate material from one workstation to the next. These conveyors rest on a flat surface instead of a stand, and they have PVC rollers that won’t mark or dent your material. They have two sets of axle holes for the rollers, so you can position the conveying surface _1/8" above the frame or _3/4" below. The frame serves as a guide rail when rollers are mounted below it.

Note: Weight capacities are based on an evenly distributed load. The length of the material you're conveying should be at least three times the roller spacing.

Straight Conveyor

Image of Attribute. Front orientation. Contains Annotated.

	Wd.		Roller				5 ft. Long			10 ft. Long
	Overall	Between Frame	Spacing	Projection	Dp. Below Frame	Frame Ht.	Wt. Cap. Per Lg. (No. of Stands Req.)		Each	Wt. Cap. Per Lg. (No. of Stands Req.)		Each
0.78" Dia. PVC Rollers—1/4" Dia. Round Axle



		5"	4"	1"	1/8"	3/4"	2 1/2"	120 lb/ft (0)	5696N11	0000000	35 lb/ft (0)	5696N14	0000000


		9"	8"	1"	1/8"	3/4"	2 1/2"	120 lb/ft (0)	5696N12	000000	35 lb/ft (0)	5696N15	00000000
		13"	12"	1"	1/8"	3/4"	2 1/2"	120 lb/ft (0)	5696N13	000000	35 lb/ft (0)	5696N16	00000000

Bench-Top Roller Conveyors

Designed to rest on a work surface, these conveyors have two sets of axle holes so you can position the conveying surface _1/8" above the frame or _3/4" below the frame (position below to use the frame as a guide rail).

Note: Weight capacities are based on an evenly distributed load. The length of the material you're conveying should be at least three times the roller spacing.

Straight Conveyor

Galvanized Steel Rollers—Conveyors with galvanized steel rollers are stronger than aluminum and have some corrosion resistance.

Aluminum Rollers—Conveyors with aluminum rollers are lightweight and corrosion resistant.

	Wd.		Roller				5 ft. Long			10 ft. Long
	Overall	Between Frame	Spacing	Projection	Dp. Below Frame	Frame Ht.	Wt. Cap. Per Lg. (No. of Stands Req.)		Each	Wt. Cap. Per Lg. (No. of Stands Req.)		Each
3/4" Dia. Galvanized Steel Rollers—1/4" Dia. Round Axle



		5 3/4"	4 7/8"	1"	1/8"	3/4"	2 1/2"	120 lb/ft (0)	5677K75	0000000	35 lb/ft (0)	5677K65	0000000


		5 3/4"	4 7/8"	2"	1/8"	3/4"	2 1/2"	120 lb/ft (0)	5677K11	000000	35 lb/ft (0)	5677K12	000000
		11 1/4"	10 3/8"	1"	1/8"	3/4"	2 1/2"	120 lb/ft (0)	5677K76	000000	35 lb/ft (0)	5677K66	00000000
		11 1/4"	10 3/8"	2"	1/8"	3/4"	2 1/2"	120 lb/ft (0)	5677K21	000000	35 lb/ft (0)	5677K22	000000
		14 3/4"	13 7/8"	1"	1/8"	3/4"	2 1/2"	120 lb/ft (0)	5677K77	000000	35 lb/ft (0)	5677K67	00000000
		18 3/4"	17 7/8"	1"	1/8"	3/4"	2 1/2"	120 lb/ft (0)	5677K78	000000	35 lb/ft (0)	5677K68	00000000


		3/4" Dia. Aluminum Rollers—1/4" Dia. Round Axle



				5 3/4"	4 7/8"	1"	1/8"	3/4"	2 1/2"	100 lb/ft (0)	5677K44	000000	25 lb/ft (0)	5677K35	000000


				11 1/4"	10 3/8"	1"	1/8"	3/4"	2 1/2"	100 lb/ft (0)	5677K54	000000	25 lb/ft (0)	5677K36	000000
				14 3/4"	13 7/8"	1"	1/8"	3/4"	2 1/2"	100 lb/ft (0)	5677K64	000000	25 lb/ft (0)	5677K37	000000
				18 3/4"	17 7/8"	1"	1/8"	3/4"	2 1/2"	100 lb/ft (0)	5677K74	000000	25 lb/ft (0)	5677K38	00000000

90° Curved Conveyor

Galvanized Steel Rollers—Conveyors with galvanized steel rollers are stronger than aluminum and have some corrosion resistance.

	Wd.
	Overall	Between Frame	Radius	Roller Projection	Frame Ht.	Wt. Cap. Per Lg. (No. of Stands Req.)		Each
3/4" Dia. Galvanized Steel Rollers—1/4" Dia. Round Axle



		5 3/4"	4 7/8"	36"	1/8"	2 1/2"	35 lb/ft (0)	5677K56	0000000


		11 1/4"	10 3/8"	36"	1/8"	2 1/2"	35 lb/ft (0)	5677K57	000000
		14 3/4"	13 7/8"	36"	1/8"	2 1/2"	35 lb/ft (0)	5677K58	000000
		18 3/4"	17 7/8"	36"	1/8"	2 1/2"	35 lb/ft (0)	5677K59	000000

Stainless Steel Bench-Top Roller Conveyors

Push small items from person to person in areas with frequent washdowns. Made of stainless steel with polypropylene bearings, these conveyors won’t rust from exposure to water or chemicals. They’re lightweight and don’t require a power source, so you can set them up on any flat surface to move material over short distances. The rollers convey objects with either flat or uneven bottoms.

Note: Weight capacities are based on an evenly distributed load. The length of the material you're conveying should be at least three times the roller spacing.

Straight Conveyor

	Wd.		Roller				5 ft. Long			10 ft. Long
	Overall	Between Frame	Spacing	Projection	Dp. Below Frame	Frame Ht.	Wt. Cap. Per Lg. (No. of Stands Req.)		Each	Wt. Cap. Per Lg. (No. of Stands Req.)		Each
3/4" Dia. Stainless Steel Rollers—1/4" Dia. Round Axle



		5 7/8"	4 7/8"	1"	1/8"	3/4"	2 1/2"	120 lb/ft (0)	5821N11	000000000	35 lb/ft (0)	5821N15	000000000


		11 3/8"	10 3/8"	1"	1/8"	3/4"	2 1/2"	120 lb/ft (0)	5821N12	00000000	35 lb/ft (0)	5821N16	00000000
		14 7/8"	13 7/8"	1"	1/8"	3/4"	2 1/2"	120 lb/ft (0)	5821N13	00000000	35 lb/ft (0)	5821N17	00000000
		19 7/8"	17 7/8"	1"	1/8"	3/4"	2 1/2"	120 lb/ft (0)	5821N14	00000000	35 lb/ft (0)	5821N18	00000000

Conveyor Roller Covers

Reduce noise, absorb impact, and extend roller life. The higher the hardness rating, the longer the covers will protect rollers in demanding applications.

Slide-On Covers

Slide-on covers slip over the roller. For easier installation, use lubricant and an air nozzle.

Polyurethane Rubber—Polyurethane rubber has a high-friction surface for high speeds and inclines.

Nozzles—Connect air nozzles to a source of compressed air to create a cushion for sliding covers onto the roller.

	Conveyor Roller Covers								Nozzles
	For Roller Dia.	Wd., ft.	Thk.	Hardness	Hardness Rating	Pkg. Qty.		Pkg.		Each
Polyurethane Rubber







				Orange

				3/4"	5	1/8"	Durometer 85A	Hard	1	5872K11	000000	5872K39	0000000

Assembly Lubricants