Carbon Balls

Carbon steel balls provide substantial savings for applications where conditions do not require a through-hardened ball. They add superior performance and dependability to products which utilize inexpensive anti-friction bearings. Typical applications include: casters, conveyors, roller skates, bicycles, overhead trolleys, drawer slides, garage doors, door locks and many others.

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Carbon Balls: Available Grades and Sizes
Grade	Size Range in Inches and Millimeters
100 - 1000	1/16 - 2 1.587 - 50.800

Balls per Pound
Size		Balls per Pound
Inches	Millimeters	Balls per Pound
1/16	1.587	27,500
3/32	2.381	8,160
1/8	3.175	3,440
5/32	3.968	1,760
3/16	4.762	1,020
7/32	5.556	642
1/4	6.350	430
9/32	7.143	302
5/16	7.937	220
11/32	8.731	166
3/8	9.525	128
13/32	10.318	100
7/16	11.112	80.3
15/32	11.906	65.3
1/2	12.700	53.8
17/32	13.493	44.8
9/16	14.287	37.5
5/8	15.875	27.5
11/16	17.462	20.7
3/4	19.050	15.9
13/16	20.637	12.5
7/8	22.225	10.0
1	25.400	6.72
1 1/8	28.575	4.72
1 1/4	31.750	3.44
1 3/8	34.925	2.59
1 1/2	38.100	2.00
1 5/8	39.687	1.57
1 3/4	44.450	1.25
1 7/8	47.625	1.02
2	50.800	.841


	Material Analysis: Carbon balls are made from the following special chemical analysis:

Material	CDA	Federal	Military	ASTM	UNS	AMS	Military and Gov't Stds.
Carbon Steel	C 1010 C 1020	QQ-W-461	MIL-S 11310	A-29	G-10100 G-10200	-	-

Chemical Analysis:
Carbon.....................................................................0.10% to 0.20%
Manganese..............................................................0.60% to 0.90%
Silicon.......................................................................0.10% to 0.20%
Sulphur.....................................................................0.50% maximum
Phosphorus.............................................................0.040% maximum

Mechanical Properties:
Hardness for carbon steel balls, as measured on the balls surface is Rockwell “C” 60 (minimum) and subject to correction factors. See chart for minimum case depth. Case depth reported is the effective case measured to the HRC 50 position (ref. ABMA Std. 10-38). Minimum thickness considerations apply to case depth.

Tensile Strength............................................................53,000psi
Yield Strength................................................................44,000psi
Elongation in two inches..............................................26%
Reduction in area..........................................................50%
Modulus of elasticity.....................................................28 x 10⁶psi
Density...........................................................................0.284 lbs/cu. in.