Metric Stainless Steel Balls

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36 Products

About Stainless Steel

Compare over 25 types of stainless steel to find the right material for you—all with material certificates for traceability.

Stainless Steel Balls

Balls have a reflective, mirror-like appearance.

Hardened Heat Treatment—These balls are hardened for increased wear and abrasion resistance.

Tight Tolerance—These balls have a diameter that’s held to a close tolerance.

304 Stainless Steel—From cookware to chemical-processing equipment, 304 stainless steel is a good all-around choice for a wide range of applications. It maintains its corrosion resistance in temperatures up to 1500° F.

316 Stainless Steel—One of the most corrosion-resistant types of stainless steel, 316 stands up to the harshest chemicals, including bleach, chlorine, and phosphoric acid. It's a step up from 304, which has similar strength and temperature performance. Use it in a variety of marine and chemical-processing applications.

440C Stainless Steel—440C is one of the hardest types of stainless steel after heat treating. It's often used for bearings and valves. This material maintains its corrosion resistance in temperatures up to 800° F.

Certificates with a traceable lot number are available for these products. Download certificates from ORDER HISTORY after your order ships.

	Dia. Tolerance, mm	Fabrication	Hardness	Specs. Met	Pkg. Qty.		Pkg.
Tight-Tolerance 304 Stainless Steel



	3	-0.0127 to 0.0127	Cold Worked	Rockwell C25 (Hard)	ASTM A240, ISO 3290, SAE J405	250	0000000	00000


	4	-0.0127 to 0.0127	Cold Worked	Rockwell C25 (Hard)	ASTM A240, ISO 3290, SAE J405	50	0000000	0000
	5	-0.0127 to 0.0127	Cold Worked	Rockwell C25 (Hard)	ASTM A240, ISO 3290, SAE J405	50	0000000	0000
	6	-0.0127 to 0.0127	Cold Worked	Rockwell C25 (Hard)	ASTM A240, ISO 3290, SAE J405	50	0000000	00000
	8	-0.0127 to 0.0127	Cold Worked	Rockwell C25 (Hard)	ASTM A240, ISO 3290, SAE J405	25	0000000	00000
	10	-0.0127 to 0.0127	Cold Worked	Rockwell C25 (Hard)	ASTM A240, ISO 3290, SAE J405	10	0000000	0000


	316 Stainless Steel



			2.5	-0.013 to 0.013	—	Rockwell C25 (Hard)	—	250	000000000	0000


			3	-0.013 to 0.013	—	Rockwell C25 (Hard)	—	250	00000000	0000
			3.5	-0.013 to 0.013	—	Rockwell C25 (Hard)	—	100	000000000	0000
			4	-0.013 to 0.013	—	Rockwell C25 (Hard)	—	50	00000000	0000
			5	-0.013 to 0.013	—	Rockwell C25 (Hard)	—	50	000000000	0000
			6	-0.013 to 0.013	—	Rockwell C25 (Hard)	—	50	000000000	0000
			7	-0.013 to 0.013	—	Rockwell C25 (Hard)	—	25	000000000	0000
			8	-0.013 to 0.013	—	Rockwell C25 (Hard)	—	25	000000000	00000
			10	-0.013 to 0.013	—	Rockwell C25 (Hard)	—	10	000000000	00000
			12	-0.013 to 0.013	—	Rockwell C25 (Hard)	—	10	000000000	00000


			Hardened 440C Stainless Steel



					1	-0.0025 to 0.0025	—	Rockwell C60 (Extra Hard)	—	250	0000000	00000


					1.5	-0.0025 to 0.0025	—	Rockwell C60 (Extra Hard)	—	250	0000000	00000
					2	-0.0025 to 0.0025	—	Rockwell C60 (Extra Hard)	—	250	0000000	00000
					2.5	-0.0025 to 0.0025	—	Rockwell C60 (Extra Hard)	—	250	0000000	00000
					3	-0.0025 to 0.0025	—	Rockwell C60 (Extra Hard)	—	250	0000000	00000
					3.5	-0.0025 to 0.0025	—	Rockwell C60 (Extra Hard)	—	100	0000000	0000
					4	-0.0025 to 0.0025	—	Rockwell C60 (Extra Hard)	—	50	0000000	0000
					5	-0.0025 to 0.0025	—	Rockwell C60 (Extra Hard)	—	50	0000000	00000
					6	-0.0025 to 0.0025	—	Rockwell C60 (Extra Hard)	—	50	0000000	00000
					7	-0.0025 to 0.0025	—	Rockwell C60 (Extra Hard)	—	25	0000000	0000
					8	-0.0025 to 0.0025	—	Rockwell C60 (Extra Hard)	—	25	0000000	00000


					10	-0.0025 to 0.0025	—	Rockwell C60 (Extra Hard)	—	10	0000000	00000
					12	-0.0025 to 0.0025	—	Rockwell C60 (Extra Hard)	—	10	0000000	00000
					13	-0.0025 to 0.0025	—	Rockwell C60 (Extra Hard)	—	5	0000000	0000
					14	-0.0025 to 0.0025	—	Rockwell C60 (Extra Hard)	—	5	0000000	00000
					15	-0.0025 to 0.0025	—	Rockwell C60 (Extra Hard)	—	5	0000000	00000
					16	-0.0025 to 0.0025	—	Rockwell C60 (Extra Hard)	—	3	0000000	00000
					18	-0.0025 to 0.0025	—	Rockwell C60 (Extra Hard)	—	3	0000000	00000

Clean Room Stud-Mount Ball Transfers

Unlike most ball transfers, which have metal balls, these have a plastic outer ball that rolls on stainless steel inner balls, so there's no metal-on-metal contact that could create and release particles into your clean room. They've also been ultrasonically cleaned and then individually bagged to prevent dust contamination. These ball transfers were originally developed for the electronics manufacturing industry, where aligning glass layers in monitors and screens must be done without introducing dust. Use them to create conveyors, transfer tables, and material staging areas in your clean room.

PEEK Ball—PEEK ball transfers withstand more wear and are more chemical resistant than acetal ball transfers, so they handle more demanding applications.

Vespel® Polyimide Ball—Vespel® polyimide ball transfers are nonconductive, which means they prevent stray electrical charges from passing between your material and equipment. They're best for moving glass and other material with a polished surface because they're smoother than acetal and PEEK ball transfers and won't scratch surfaces.

									Temp., ° F
	Ball Dia.	Wt. Cap., lb.	Ht.	Dia.	Working Orientation	Housing Color	Thread Size	Stud Lg.	Min.	Max.	Clean Room Std.		Each
PEEK Ball







				PEEK/Stainless Steel Housing

				3/8"	2 1/2	9/16"	19/32"	Ball Up	Beige	M8 × 1.25 mm	15/32"	0	260	Fed. Std. Class 1,000	0000000	000000


				Vespel® Polyimide Ball







								Vespel® Polyimide/Stainless Steel Housing

								3/8"	1	9/16"	19/32"	Ball Up	Brown	M8 × 1.25 mm	15/32"	0	200	Fed. Std. Class 1,000	0000000	000000