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CB Series Construction Ball
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Find hole centers easily |
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The CB Series construction balls are used for applications requiring
a 1/2" reference ball located a known distance from a surface, on the
centerline of a hole. The shank of the CB construction ball has
a diameter held to very close tolerances for a precision slip fit.
Various offset dimensions and shank diameters are available (see table
and part drawing below). Two piece welded design. The shank
has a threaded hole (6-32 UNC) for use with our
BEX Series extension bars or other
customer-supplied fixtures. Choose from the available sizes
shown in the table below:
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Part No. |
Offset "A" |
Shank dia. "B" |
Length "L" |
| CB-3125-2500 |
0.3125" |
0.250" |
0.63" |
| CB-5000-2500 |
0.500" |
0.250" |
0.94" |
| CB-5000-3125 |
0.500" |
0.3125" |
0.94" |
| CB-5000-3750 |
0.500" |
0.375" |
1.50" |
Note: A different construction ball configuration is available (right) with more
combinations of offset height and shank diameter. Contact us with your
specific requirements. (This item is not recommended for high
temp applications.)
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Concentricity between ball and shank: 0.0002" TIR
(0.005mm TIR)
Shank diameter tolerance: +0.0000", −0.0003"
(+0.000mm, −0.008mm)
Offset dimension tolerance: ±0.0002" (±0.005mm) |
Ball diameter tolerance: +0.0000", −0.0003"
(+0.000mm, −0.008mm)
Material: 52100 steel ball with 1018 steel shank
Hardness: HRC 54-56 (ball) |
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