Aluminum Bearing Balls | McMaster-Carr

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28 Products

About Aluminum

Compare over 20 aluminum alloys to find the right material for you—all with material certificates for traceability.

Performance

Corrosion Resistant

Stay strong when exposed to salt water and mild chemicals

13 products

High Strength

Yield strength of 30,000 psi or higher

20 products

Performance

Machinable

Drill, mill, or turn without producing long chips or leaving a rough finish

20 products

Heat Treatable

Strengthen and harden through heat treatment processes

20 products

Aluminum Balls

Lighter than steel and stronger than plastic, these balls save weight while standing up to wear and tear. They're widely used as grinding media and in valves and bearings.

2017 Aluminum—An economical choice when you need high strength.

2024 Aluminum—The strongest aluminum balls we offer.

3003 Aluminum—The best choice for high-speed bearings. These balls are hollow, so they're even lighter than solid aluminum balls to spin faster and generate less heat. However, they can't handle as heavy loads. They won't degrade outdoors or from mild chemicals.

6061 Aluminum—The most widely used aluminum balls, balancing strength and corrosion resistance.

	Dia. Tolerance	Construction	Temper Designation	Pkg. Qty.		Pkg.
2017 Aluminum



	1/32"	-0.001" to 0.001"	Solid	T4	100	34665K21	000000


	3/64"	-0.001" to 0.001"	Solid	T4	100	34665K33	00000
	1/16"	-0.001" to 0.001"	Solid	T4	100	34665K22	00000
	5/64"	-0.001" to 0.001"	Solid	T4	100	34665K25	00000
	3/32"	-0.001" to 0.001"	Solid	T4	100	34665K27	00000
	1/8"	-0.001" to 0.001"	Solid	T4	100	34665K29	00000
	5/32"	-0.001" to 0.001"	Solid	T4	100	34665K34	00000
	1/4"	-0.001" to 0.001"	Solid	T4	50	34665K31	00000
	1/2"	-0.001" to 0.001"	Solid	T4	10	34665K32	00000
	1 mm	-0.025 mm to 0.025 mm	Solid	T4	100	34665K35	00000
	2 mm	-0.025 mm to 0.025 mm	Solid	T4	100	34665K36	00000


	3 mm	-0.025 mm to 0.025 mm	Solid	T4	100	34665K37	00000


	2024 Aluminum



			7/8"	-0.001" to 0.001"	Solid	T351	1	6865N11	00000


			1"	-0.001" to 0.001"	Solid	T351	1	6865N12	00000
			2"	-0.001" to 0.001"	Solid	T351	1	6865N18	000000


			3003 Aluminum



					1/4"	-0.010" to 0.010"	Hollow	O	10	1089T21	00000


					5/16"	-0.010" to 0.010"	Hollow	O	10	1089T22	00000
					3/8"	-0.010" to 0.010"	Hollow	O	10	1089T23	00000
					7/16"	-0.010" to 0.010"	Hollow	O	10	1089T24	00000
					1/2"	-0.010" to 0.010"	Hollow	O	10	1089T25	00000
					9/16"	-0.010" to 0.010"	Hollow	O	10	1089T26	00000
					5/8"	-0.010" to 0.010"	Hollow	O	10	1089T28	00000
					3/4"	-0.010" to 0.010"	Hollow	O	10	1089T27	00000


					6061 Aluminum



							1 1/8"	-0.001" to 0.001"	Solid	T6	1	6865N13	00000


							1 1/4"	-0.001" to 0.001"	Solid	T6	1	6865N14	00000
							1 3/8"	-0.001" to 0.001"	Solid	T6	1	6865N15	00000
							1 1/2"	-0.001" to 0.001"	Solid	T6	1	6865N16	00000
							1 3/4"	-0.001" to 0.001"	Solid	T6	1	6865N17	000000