### Bal-tec - Ball Weight and Density

Ball Weight and Density ... 4.1887 times the density of lead, which is 0.409 pounds per cubic inch, gives a weight of 1.713 pounds. What would a three inch diameter lead ball weigh? The radius of 1.5 inches cubed equals $3.375 ⋅ 4 ⋅ π = 42.410$, divided by 3, equals 14.137 cubic inches, times 0.409 ( the density of lead ) gives 5.782 ...

### 3 and 6 pound ball mill traction trick - Pyrotechnics ...

Jan 14, 2014· 3 and 6 pound ball mill traction trick - posted in Pyrotechnics: For those who use these, and have not replaced the clear tubing on the drive shaft and have occasional slippery slidey situations...now I know this is probably maybe a no brainer for some, but get you some sand paper. Any grit you got, and sand that little devil until the shine is gone and you have high traction.

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