Aluminum Hollow Balls | McMaster-Carr

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8 Products

About Aluminum

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

Aluminum Balls

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.

	Dia. Tolerance	Wt., g	Construction	Temper Designation	Pkg. Qty.		Pkg.
3003 Aluminum



	1/4"	-0.010" to 0.010"	0.1	Hollow	O	10	1089T21	000000


	5/16"	-0.010" to 0.010"	0.3	Hollow	O	10	1089T22	00000
	3/8"	-0.010" to 0.010"	0.3	Hollow	O	10	1089T23	00000
	7/16"	-0.010" to 0.010"	0.5	Hollow	O	10	1089T24	00000
	1/2"	-0.010" to 0.010"	1	Hollow	O	10	1089T25	00000
	9/16"	-0.010" to 0.010"	1.5	Hollow	O	10	1089T26	00000
	5/8"	-0.010" to 0.010"	1.7	Hollow	O	10	1089T28	00000
	3/4"	-0.010" to 0.010"	2.5	Hollow	O	10	1089T27	00000