Ball with Concentric Blind Hole
Made from Hardened Stainless Steel
These modified balls make good elements for kinematic systems, where this simple design can be applied. This general purpose component is widely used by the gage industry. The .500", and .750" balls are also available in instrument quality with 5 microinch sphericity and ultra high quality with 2.5 microinch sphericity. They are used to construct ball bars, ball trees, reference spheres, etc. Tungsten Carbide is available on special order.
| Part No. |
A-Diameter ±.0001" |
E-Diameter ±.002" |
F-Depth Reference |
| 187-BBH |
.1875"
4.763 mm |
.062
1.587 mm |
.100
2.54 mm |
| 250-BBH |
.250"
6.35 mm |
.0625"
1.587 mm |
.125"
3.175 mm |
| 312-BBH |
.3125"
7.9375 mm |
.09375"
2.381 mm |
.125"
3.175 mm |
| 375-BBH |
.3750"
9.525 mm |
.09375"
2.83 mm |
.125"
3.175 mm |
| 500-BBH |
.500"
12.700 mm |
.125"
3.175 mm |
.250"
6.35 mm |
| 625-BBH |
.625"
15.875 mm |
|
|
| 750-BBH |
.750"
19.05 mm |
.125"
3.175 mm |
.300"
7.620 mm |
| 100-BBH |
1.00"
25.4 mm |
.125"
3.175 mm |
.300"
7.620 mm |
See here for Kinematic Mounting Hardware - Balls prices.